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Date: Tue, 01 Dec 2015 14:11:19 +0100
From: peter van der Stok <stokcons@xs4all.nl>
To: Michael Richardson <mcr+ietf@sandelman.ca>
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Subject: Re: [Anima-bootstrap] IoT and scope of bootstrap
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HI Michael,

The use case I like to be covered seems less complex than the ones you 
describe below.

Suppose:
A new building is installed with building equipment such as HVAC, 
lighting, etc.
Or an existing building is retrofit.
Cables are laid out, connected to equipment, Access Points are 
installed, 6LBRs are installed,
and wireless equipment connecting to the 6LBRs and APs is installed.
Cabling is tested and wrong connections are removed.

Assuming the cabling, the 6LBRs and APs are correctly installed, the 
network is powered up.
Assume most equipment is ANIMA enabled. The network is bootstrapped with 
factory security in place.
After bootstrap this is a perfect moment to decide whether the network 
(ACP) works or not.

Once the network is declared to work (satisfies the specification), 
additional service discovery, group declarations, application specific 
keying material can be installed.

Such a network will be composed of LLNs, and includes constrained 
devices.
Sleepy nodes (energy harvesting sensors) may include ANIMA services, but 
special provisions to include them in the network are more likely to be 
deployed.

For the moment I have no idea what ACP and Anima bootstrapping implies 
in terms of resources and resource consumption.
But excluding everything smaller than a tablet may be premature.

Peter

Michael Richardson schreef op 2015-11-30 22:39:
> peter van der Stok <stokcons@xs4all.nl> wrote:
>     > Hi Michael,
> 
>     > Your text proposal does not help me much.
> 
> Oh, I am sad.
> 
> peter van der Stok <stokcons@xs4all.nl> wrote:
>     >> +      <section title="Scope of solution">
>     >> +        <t>
>     >> +          Questions have been posed as to whether this
> solution is suitable
>     >> +          in general for Internet of Things (IoT) networks.
> In general the
>     >> +          answer is no, but the terminology of <xref
> target="RFC7228" /> is
>     >> +          best used to describe the boundaries.
>     >> +        </t>
> 
>     > The above text is much more restrictive than the text below.
> 
> So, my intention is to make people argue why IoT should be covered, 
> rather
> than assume it is unless not specified.
> 
>     >> +        <t>
>     >> +          Specifically, there are protocol aspects described
> here which might
>     >> +          result in congestion collapse or energy-exhaustion
> of intermediate
>     >> +          battery powered routers in an LLN.  Those types of
> networks SHOULD
>     >> +          NOT use this solution.
>     >> +        </t>
>     >> +      </section>
> 
>     > I think the text about battery-powered or energy harvesting 
> devices is the
>     > more appropriate.
> 
> Agreed.
> 
>     > What about text that formulates unwanted side effects coming from 
> energy
>     > exhausted ("dead") nodes?
>     > I don't think the dying of a node is allowed to jeopardize the 
> functioning
>     > for other nodes or cause congestion, as your text suggests.
> 
>     > Some effort on getting this right is worthwhile, because I think
> the use of
>     > the anima Bootstrap may be interesting for the installation of
> large control
>     > networks, where
>     > the verification of the correct functioning of the network as
> such is clearly
>     > separated from the correct functioning of the (control-)
>     > application on top.
> 
> Here is a use case that I imagine.
> 
> There is an existing LLN with a 6LBR and a backbone connection.
> By construction, it has some energy constrained nodes in it, which 
> function
> just fine.
> 
> The LLN is to be expanded to service some new requirement. While the 
> existing
> 6LBR can reach the new space, it won't work reliably enough, so a new 
> 6LBR is
> installed in the new space.  The 6LBR is ANIMA capable, and is mains 
> powered,
> and the new backhaul will be 802.11.  The new device doesn't have 
> WEP/WPA
> keys (and the AP doesn't speak ANIMA), but it does speak the 6tisch 
> join
> protocol, so it joins the existing LLN as a leaf.  Then, using the LLN, 
> it
> performs an *ANIMA* enrollment, with the LLN acting as a single "link" 
> from
> the ANIMA point of view.
> 
> Once enrolled, it has a domain specific certificate, has been 
> provisioned
> with the right WEP key, and can now enable the wifi as backbone.
> 
> Another use case might be a BFR in a cabinet that is being cabled up, 
> but
> said cables are not yet "lit".  It has been given a BTLE USB key into 
> one of
> it's USB slots usually intended for firmware updates.  The BFR does a 
> pairing
> over BTLE with the installers' smartphone, and using rfc7688, and 
> connects to
> the ACP that the smartphone is part of.  The BFR is now "up" enough for 
> the
> experts in the NOC to bring things up.  They might need to configure 
> the
> right lambdas for the 100G link to turn on... or instruct the cabling 
> people
> which cable goes into which port. (cables *never* get mis-labelled..)
> 
> In this context, the smartphone is energy constrained, and getting the 
> ACP
> off of it ASAP would be important.
> 
> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>  -= IPv6 IoT consulting =-
> 
> 
> 
> 
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


From nobody Tue Dec  1 11:11:20 2015
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] IoT and scope of bootstrap
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Hi Peter,

On 02/12/2015 02:11, peter van der Stok wrote:
...
> Such a network will be composed of LLNs, and includes constrained devices.
> Sleepy nodes (energy harvesting sensors) may include ANIMA services, but special provisions to include them in the network are
> more likely to be deployed.
> 
> For the moment I have no idea what ACP and Anima bootstrapping implies in terms of resources and resource consumption.
> But excluding everything smaller than a tablet may be premature.

ANs are basically nodes that participate in management actions that historically
would have been carried out by a centralised NMS or NOC. So in my view an individual
light switch isn't an AN but should be managed by an AN. The lighting controller
for a section of a building could be an AN. Or to say it another way, a node that
just does what it's told isn't an AN. (It may of course need a security bootstrap
anyway.)

However, indeed the resource question is important. An AN is going to need a
multi-threading OS, a full network stack, and a heap of software on top. For
example, GRASP alone is about 2500 lines of C (in the now-obsolete BUPT prototype)
and looks as if it will also be a couple of thousand lines of Python. Add to
that the ACP, the security bootstrap, and all the supporting code, before
you install any ASAs.

    Brian


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From nobody Wed Dec  2 00:08:01 2015
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From: peter van der Stok <stokcons@xs4all.nl>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] IoT and scope of bootstrap
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Hi Brian,

Brian E Carpenter schreef op 2015-12-01 20:11:
> Hi Peter,
> 
> On 02/12/2015 02:11, peter van der Stok wrote:
> ...
>> Such a network will be composed of LLNs, and includes constrained 
>> devices.
>> Sleepy nodes (energy harvesting sensors) may include ANIMA services, 
>> but special provisions to include them in the network are
>> more likely to be deployed.
>> 
>> For the moment I have no idea what ACP and Anima bootstrapping implies 
>> in terms of resources and resource consumption.
>> But excluding everything smaller than a tablet may be premature.
> 
> ANs are basically nodes that participate in management actions that 
> historically
> would have been carried out by a centralised NMS or NOC. So in my view
> an individual
> light switch isn't an AN but should be managed by an AN. The lighting 
> controller
> for a section of a building could be an AN. Or to say it another way,
> a node that
> just does what it's told isn't an AN.
<pvds> Strictly speaking from a network management point of view?
In that case the numerous light controllers are probably not ANs.
However, the building control can (will) be part other networks, and the 
management of all these network components will include ANs.
For the moment these aspects are far from clear to me.
</pvds>
(It may of course need a
> security bootstrap
> anyway.)
<pvds>
That's where my interest comes from. Listening to Max in Yokohama, where 
he explained his central table, I understood the bootstrap
and the accompanying ACP to realize a domain wide neighbor discovery 
including secure bootstrap (beyond single link or mesh); with apologies 
for my over-simplification.
The domain being (one of) the building control component(s) in the total 
network.
For the moment I did not see the need for a multi-threaded OS to realize 
this part.
Therefore my optimism that (this part of) Anima could be used to 
separate network installation responsibility from application 
installation responsibility.
</pvds>
> 
> However, indeed the resource question is important. An AN is going to 
> need a
> multi-threading OS, a full network stack, and a heap of software on 
> top. For
> example, GRASP alone is about 2500 lines of C (in the now-obsolete
> BUPT prototype)
> and looks as if it will also be a couple of thousand lines of Python. 
> Add to
> that the ACP, the security bootstrap, and all the supporting code, 
> before
> you install any ASAs.
<pvds>
Therefore I will try to look for possibilities to install ACP with 
bootstrap in a given node without using all the other goodies.
Unless such a separation is unwanted, and my view needs to find 
expression elsewhere.
</pvds>
> 
>     Brian
> 
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


From nobody Wed Dec  2 04:51:24 2015
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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: "Max Pritikin (pritikin)" <pritikin@cisco.com>
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Subject: Re: [Anima-bootstrap] DOODLE POLL: Bootstrap Design Meeting Rescheduling
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Well, i should be able to make it every second week, my 10AM slot is
only every second week.

Cheers
    Toerless

On Tue, Dec 01, 2015 at 11:56:41PM +0000, Max Pritikin (pritikin) wrote:
> I don???t think we???re getting any more updates.
> 
> Of these THURSDAY at 10am (central) looks like the best bet. Unfortunately this is bad for Toerless so I???m loath to claim we have a winner.
> 
> Folks, please let us know if you can stretch to join one of the other calls.
> 
> If I don???t hear anything i???ll setup a webex and let everybody know the details before the THURSDAY 10am (central) slot.
> 
> - max
> 
> [cid:CC3E712A-3110-47F9-BF27-EC27D9244519@cisco.com]
> - max
> 
> On Nov 24, 2015, at 2:31 PM, Max Pritikin (pritikin) <pritikin@cisco.com<mailto:pritikin@cisco.com>> wrote:
> 
> Thanks. As you all can tell there isn???t an obvious winner
> 
> <Screen Shot 2015-11-24 at 2.28.30 PM.jpeg>
> - max
> 
> On Nov 24, 2015, at 2:19 PM, Brian E Carpenter <brian.e.carpenter@gmail.com<mailto:brian.e.carpenter@gmail.com>> wrote:
> 
> I've responded, but please don't take my "vote" as very
> important - I'm here mainly to watch for issues that
> directly affect GRASP, rather than to contribute.
> 
> Regards
>   Brian
> 
> On 25/11/2015 08:26, Max Pritikin (pritikin) wrote:
> 
> Folks,
> 
> Currently 3 people in addition to myself have filled out the doodle poll.
> 
> The only slot that has everybody able to attend so far is Thursday at 10am (this week that is of course Thanksgiving and I don???t expect anybody would be there). When you fill your information in please strain to help find a slot everybody can join.
> 
> I???ve added a couple more people to this email but perhaps Toerless or Sheng has direct emails for the other ???team members??? and could ping them directly? (Their email addr isn???t listed on the bootstrap wiki).
> 
> - max
> 
> On Nov 20, 2015, at 1:47 PM, Max Pritikin (pritikin) <pritikin@cisco.com<mailto:pritikin@cisco.com>> wrote:
> 
> 
> ANIMA bootstrap design team has been meeting on Wed morning but attendance has been light with multiple conflicts lately. This poll is to see if a new time can be found.
> 
> Please fill in this poll if you???d like to be joining the bootstrap design team calls but haven???t been able to due to scheduling conflicts.
> 
> Some notes:
> 
> I arbitrarily blocked some times for the meetings. If NONE of these work we can try to find some other slots (please suggest).
> 
> The poll is for an entire week of days... but the date itself doesn???t matter. Please select the time that works most often for you for a recurring meeting.
> 
> The timezone is set for central time??? but time zone support is enabled. Just remember to switch this to your time zone before filling in which times you would be available.
> 
> Please enter your name in the input field and check the box for times that you are available.
> 
> http://doodle.com/poll/89t6v7mrvtv9txg7
> 
> 
> - max
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org<mailto:Anima-bootstrap@ietf.org>
> https://www.ietf.org/mailman/listinfo/anima-bootstrap
> 
> 
> 
> 



-- 
---
Toerless Eckert, eckert@cisco.com


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--=-=-=
Content-Type: text/plain


Was 10am Thursday the conclusion from the doodle poll?
if so, I can make an IETF webex for this.


--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-




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Cc: "Toerless Eckert \(eckert\)" <eckert@cisco.com>, anima-bootstrap <anima-bootstrap@ietf.org>, Kent Watsen <kwatsen@juniper.net>
Subject: Re: [Anima-bootstrap] DOODLE POLL: Bootstrap Design Meeting Rescheduling
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Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
    > I don=E2=80=99t think we=E2=80=99re getting any more updates.

    > Of these THURSDAY at 10am (central) looks like the best bet. Unfortun=
ately
    > this is bad for Toerless so I=E2=80=99m loath to claim we have a winn=
er.

okay, found this email finally.
So, it's 10am Central, not Eastern Standard, so, 1600 UTC, I think.

--
]               Never tell me the odds!                 | ipv6 mesh network=
s [
]   Michael Richardson, Sandelman Software Works        | network architect=
  [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails  =
  [


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From nobody Wed Dec  2 12:41:42 2015
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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: anima-bootstrap <anima-bootstrap@ietf.org>
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References: <31DBE67A-30DD-48E9-A533-B854A5B4C79C@cisco.com> <1049515D-3512-441F-B14B-ED8FBE3A1EF6@cisco.com> <5654D44B.60906@gmail.com> <66260958-ED53-4308-9D20-B70BEB38641C@cisco.com> <4C23A411-F644-46BE-BB22-F821F7A86D52@cisco.com> <21410.1449082193@sandelman.ca>
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Subject: Re: [Anima-bootstrap] DOODLE POLL: Bootstrap Design Meeting Rescheduling
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--=-=-=
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Here is a webex for Thursday at 1600UTC.
I've set this until the next IETF, cancelling meetings Dec. 24 and Dec.31.

https://ietf.webex.com/ietf/j.php?MTID=m09ce76fb7e9ae7af015d3033b42c54c2

meeting number: 649 770 742
Meeting password: bootstrap

1-877-668-4493 Call-in toll free number (US/Canada)
1-650-479-3208 Call-in toll number (US/Canada)

I also sent an invitation to this list.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-




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From nobody Wed Dec  2 16:19:07 2015
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To: consultancy@vanderstok.org
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] IoT and scope of bootstrap
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On 02/12/2015 21:07, peter van der Stok wrote:

...
> <pvds>
> Therefore I will try to look for possibilities to install ACP with bootstrap in a given node without using all the other goodies.
> Unless such a separation is unwanted, and my view needs to find expression elsewhere.
> </pvds>

fwiw, I can certainly imagine a tiny subset of GRASP that only supports
client-side discovery/response, if that's what the bootstrap needs. We could
fit that in a smart light switch.

   Brian


From nobody Thu Dec  3 00:11:09 2015
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From: peter van der Stok <stokcons@xs4all.nl>
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Subject: Re: [Anima-bootstrap] IoT and scope of bootstrap
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HI Brian,

So, I have a mission.

Peter

Brian E Carpenter schreef op 2015-12-03 01:19:
> On 02/12/2015 21:07, peter van der Stok wrote:
> 
> ...
>> <pvds>
>> Therefore I will try to look for possibilities to install ACP with 
>> bootstrap in a given node without using all the other goodies.
>> Unless such a separation is unwanted, and my view needs to find 
>> expression elsewhere.
>> </pvds>
> 
> fwiw, I can certainly imagine a tiny subset of GRASP that only supports
> client-side discovery/response, if that's what the bootstrap needs. We 
> could
> fit that in a smart light switch.
> 
>    Brian
> 
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


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Date: Thu, 3 Dec 2015 17:43:33 -0800
From: Toerless Eckert <eckert@cisco.com>
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Subject: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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 As promised during call: 

Proposed Discovery phase for AN-Bootstrap:

1. Mandatory: Discovery of bootstrap-proxy link-local

   I think this should be via GRASP, but GRASP may not want to provide what i think is
   best, so let me maybe first describe what i think is best, independent
   of what protocol we use and solicit feedback on it and then we can discuss
   with GRAP if/how to fit it there:

   IMHO, i would let the proxy periodically (30 secs) just announce that its providing
   AN enrollment proxy function via link-local IPv6 multicast. Maybe with port-number
   and protocol (EST over IPv6 link-local ) as parameters so it's extensible.

   Why ?

   I don't want to make the proxy more attackable than it needs to be. Anything
   that it needs to respond to is something it can be attacked with. Unsolicited
   periodic link-local multicast that do not need/want any response are really hard to attack.

   I don't want the enrolling device to be more attackable than necessarily.
   Arguably such a greenfield device may be more attackable than a configured
   device. An unconfigured device that periodically broadcasts "hey, i am unconfigured
   and look for a proxy server" (especially when powered on in a non-AN enviroment)
   is the best victim ever to do a port-scan etc. pp.  on (or just find the console
   interface). And just because a vendor has added autonomic networking doesn't mean
   he has now also fixed all security for all OS services many of which may not even be
   off by default but would likely be configured off by security sensitive operators. 

   Sure, could an attacker find a greenfield device by also broadcasting the
   link-local "i am an AN-proxy" messages ? But now you have an active attacker.
   And for example, we could include in the periodic announcements a timestamp
   signed with the proxies domain certificate. Thats something the attacker
   can not fake. The greenfield device may not be able to figure out
   whose link-local multicast to trust, but the real an-proxy can listen to someone
   else multicasting itself as a proxy. And if thats not from another proxy in the
   same AN domain, then this could trigger an alert to ops (syslog or trap).
   And of course the greenfield device should not trust an L2 unicasted "i am proxy"
   message, because that might be a trick from an attacker to not be seen by a real proxy
   on the same (wired) LAN.
   
   So, i think we can use GARP DISCOVER for this periodic multicast, only that
   GARP DISCOVER really wants to see a GARP reply, but in our case we really
   just want the greenfield device to immediately connect to our EST TCP port,
   no need for any further chat before doing that. So thats where we'd need to have
   the discuss with GARP folks what they think. 

   Also comparison with mDNS as we discussed it:
     - code size: We need GRASP for more functions in AN beside discovery,
       we do not need mDNS for anything in AN, so on IoT devices we would save
       code size. TBD: Size of an mDNS stack (note: We MAY want "normal" DNS,
       so the code size for mDNS may not be that large as a delta on top of
       "normal" DNS).
     - Number of packet exchanges (TBD: not clear how much this is a real
       problem, mDNS may optimize here): mDNS exchange is logical three step:
       PTR RR lookup -> SRV, TXT RR lookup, AAAA lookup
     - mDNS being a query/reply exchange wouldn't have the security properties
       i described above. Unless you abuse it and engineer an MDNS unsolicited
       announce periodically with all the four RRs included. And i guess
       one could define a TXT RR with the signed timestamp. Aka: I could probably
       do the same thing i was describing above also with mDNS. Not sure if
       mDNS people would like that...

2. If 1. failed:  OPTIONAL Discovery of bootstrap proxy via L3

   Does not need to be supported on all AN devices, but only those that
   want to be able to auto-bootstrap when connected to some "IP-network/Internet"
   connection. Would also like comments from Kent because his draft/use-cases
   will likely have a lot of overlap/opinions here.

   a) Try to get (routed) IPv6/IPv4 address. IPv4 by DHCP, IPv6 SLAAC and/or DHCP.

   b) If address via DHCP request DHCP option holding AN bootstrap parameter
      TBD: Option 124/125. Maybe Ralph Droms can quickly point to best practices
      from IETF standards perspective, else i need to dig more for what i've seen
      as best practices.

   c) If DHCP successfull, DHCP reply will provide IP/IPv6 address or domain-name
      of bootstrap proxy. Connect to it.

      This case will allow you to connect to a proxy in the customer network
      (aka: network that generates the DHCP reply). This option will not work
      when connecting to the Internet.

   d) If using SLAAC (IPv6): TBD. Need to ask IPv6 experts if IPv6 RA etc. 
      can usefully provide add-on info like DHCP can (don't think so).

   e) If DHCP and/or SLAAC fail to find bootstrap proxy, use DNS:

   f) DHCP/SLAAC should have provided local <domain>.
      Look up autonomic-bootstrap-proxy.<domain> A/AAAA addresses (depending
      on whether device has IPv4 and/or IPv6 address from a). Connect to
      that IPv4/IPv6 address of bootstrap server.

   g) OPTIONAL:
      If f) has failed, create domain-name <name>.<vendor>.

      This connects to proxy in the internet operated by device vendor,
      which is the only option when connecting directly to the Internet,
      where no DHCP option is possible (from owner) and where you do not
      get a useful DNS prefix (but just DNS prefix from SP).

      Of course this only needs to be implemented if vendor is happy to 
      operate (or outsource) such a proxy on the Internet. So it's even more optional
      then the whole L3 bootstrap option overall.
   
Removed: I am somewhat a fan of link-local IPv4 (they're cute), but i really
don't see a reason for them: The proxy also needs to support AN functions anyhow,
so it will always be able to do IPv6.

   a) 



From nobody Thu Dec  3 20:27:32 2015
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To: Toerless Eckert <eckert@cisco.com>, anima-bootstrap@ietf.org
References: <20151204014333.GZ29056@cisco.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On 04/12/2015 14:43, Toerless Eckert wrote:

...
>    IMHO, i would let the proxy periodically (30 secs) just announce that its providing
>    AN enrollment proxy function via link-local IPv6 multicast. 

Here's the Python code to do that with my prototype:

import grasp
import time

OK, nonce = grasp.register_asa("Boot")
if not OK:
    #we've got a serious problem...
    raise RuntimeError("Can't register as ASA")

obj = objective(0,":Boot")
x = grasp.register_obj(nonce, obj)
if not x == "OK":
    #we've got a different problem...
    raise RuntimeError(x)

while True:
    grasp.discover(nonce, obj, 30000)

What this does is register the caller as an ASA called "Boot" that handles the
objective called ":Boot", and then LL multicast a discovery message every
30s. That will tell the others that it's there. It's running in another window
as I type. I didn't write the handler code for the receiving end yet though,
so I just get output like this twice a minute:

CBOR->Python gives:  [1, 1248700, b'$\x06\xe0\x07S\x07\x00\x01(\xcc\xdcL\x97\x03g\x81', ':Boot', 0, 6, 0]

> Maybe with port-number
>    and protocol (EST over IPv6 link-local ) as parameters so it's extensible.

If you want parameters, we'd need to use the (synch) flooding method
instead. Maybe I'll write that code next week; it will be very similar to
the discovery case. I don't think there are any real problems here.

Python+CBOR is fun. Thanks, Toerless, for pushing the CBOR idea.

   Brian


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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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To: "Max Pritikin (pritikin)" <pritikin@cisco.com>
References: <20151204014333.GZ29056@cisco.com> <56611639.9060508@gmail.com> <29E5EEC1-9995-4137-B8BE-7E2103810CD9@cisco.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Sat, 5 Dec 2015 13:06:36 +1300
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On 05/12/2015 12:44, Max Pritikin (pritikin) wrote:
> Brian,=20
>=20
> Are the session-id and the nonce equivalent?

Well, I made an implementation choice that when an ASA registers itself
with GRASP it gets back a nonce, used to validate future calls, so
that no other process can masquerade as the same ASA. And yes, I
just re-used the existing Session ID mechanism to assign that nonce.
However, each transaction that an ASA initiates will get its own
Session ID.

> Why is the 30000 a parameter passed into the into the grasp.discover ca=
ll? This looks like a timeout for how long to wait for a response (GRASP_=
DEF_TIMEOUT/2)? If so this would provide the 30s behavior but is leveragi=
ng a side-effect dubiously. Sufficient for PoC; I=E2=80=99m just asking t=
o understand.

Correct. Again, it's just an implementation choice and I agree it's a bit=

of a kludge. It could be done more elegantly. (Although I must say that t=
he
threading support in Python is a dream to use.)

>=20
> Toerless=E2=80=99s suggestion appears to be to include the =E2=80=9Cloc=
ator-option=E2=80=9D within the discover message. Did you include that? C=
urrently "locator-option=E2=80=9D is not part of the [grasp] s3.7.2 Disco=
ver Message. Are you comfortable adding that as Toerless argues for?

It turns out that we have to do that anyway, for other reasons that Joel =
Halpern
pointed out (since Session IDs are unique per node, not network-wide). Th=
at will
be fixed in the next GRASP draft. But in any case, the recipient of a LL =
multicast
can know the source address (and interface #) even if they are not in the=
 payload.
So this isn't a problem.

However, I do think that the "announcement" nature of this is better suit=
ed
to the unsolicited flooding message than the Discovery message, because t=
hen
it's natural to include data in the message.

    Brian

>=20
> - max
>=20
>> On Dec 3, 2015, at 9:27 PM, Brian E Carpenter <brian.e.carpenter@gmail=
=2Ecom> wrote:
>>
>> On 04/12/2015 14:43, Toerless Eckert wrote:
>>
>> ...
>>>   IMHO, i would let the proxy periodically (30 secs) just announce th=
at its providing
>>>   AN enrollment proxy function via link-local IPv6 multicast.=20
>>
>> Here's the Python code to do that with my prototype:
>>
>> import grasp
>> import time
>>
>> OK, nonce =3D grasp.register_asa("Boot")
>> if not OK:
>>    #we've got a serious problem...
>>    raise RuntimeError("Can't register as ASA")
>>
>> obj =3D objective(0,":Boot")
>> x =3D grasp.register_obj(nonce, obj)
>> if not x =3D=3D "OK":
>>    #we've got a different problem...
>>    raise RuntimeError(x)
>>
>> while True:
>>    grasp.discover(nonce, obj, 30000)
>>
>> What this does is register the caller as an ASA called "Boot" that han=
dles the
>> objective called ":Boot", and then LL multicast a discovery message ev=
ery
>> 30s. That will tell the others that it's there. It's running in anothe=
r window
>> as I type. I didn't write the handler code for the receiving end yet t=
hough,
>> so I just get output like this twice a minute:
>>
>> CBOR->Python gives:  [1, 1248700, b'$\x06\xe0\x07S\x07\x00\x01(\xcc\xd=
cL\x97\x03g\x81', ':Boot', 0, 6, 0]
>>
>>> Maybe with port-number
>>>   and protocol (EST over IPv6 link-local ) as parameters so it's exte=
nsible.
>>
>> If you want parameters, we'd need to use the (synch) flooding method
>> instead. Maybe I'll write that code next week; it will be very similar=
 to
>> the discovery case. I don't think there are any real problems here.
>>
>> Python+CBOR is fun. Thanks, Toerless, for pushing the CBOR idea.
>>
>>   Brian
>>
>> _______________________________________________
>> Anima-bootstrap mailing list
>> Anima-bootstrap@ietf.org
>> https://www.ietf.org/mailman/listinfo/anima-bootstrap
>=20


From nobody Fri Dec  4 16:18:44 2015
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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: "Toerless Eckert (eckert)" <eckert@cisco.com>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Date: Sat, 5 Dec 2015 00:18:39 +0000
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Date: Sat, 5 Dec 2015 00:25:54 +0000
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Cc: "Toerless Eckert \(eckert\)" <eckert@cisco.com>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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From nobody Fri Dec  4 16:42:16 2015
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To: "Max Pritikin (pritikin)" <pritikin@cisco.com>
References: <20151204014333.GZ29056@cisco.com> <56611639.9060508@gmail.com> <29E5EEC1-9995-4137-B8BE-7E2103810CD9@cisco.com> <56622A8C.2020106@gmail.com> <FD53CF07-302A-4FEC-8119-B2FF98A1916E@cisco.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Sat, 5 Dec 2015 13:42:22 +1300
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Cc: "Toerless Eckert \(eckert\)" <eckert@cisco.com>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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> FYI - as an editorial note the paragraph explaining flooding is buried =
in s3.3.5 and could probably be called out more clearly in the text. Perh=
aps its own section or in the Response section? Similarly s3.9.1 includes=
 the text: "and for terminating flooding as described in FLOODING=E2=80=9D=
 which looks like an incomplete reference as if you had already planned t=
o pull flooding out into its own section.

Good points.

BTW I don't fundamentally care whether or not bootstrap uses the GRASP
mechanisms - I just want to make sure that they *could* be used if that
turns out to be optimal.

Regards
   Brian

On 05/12/2015 13:25, Max Pritikin (pritikin) wrote:
>=20
>> On Dec 4, 2015, at 5:06 PM, Brian E Carpenter <brian.e.carpenter@gmail=
=2Ecom> wrote:
>>
>> On 05/12/2015 12:44, Max Pritikin (pritikin) wrote:
>>> Brian,=20
>>>
>>> Are the session-id and the nonce equivalent?
>>
>> Well, I made an implementation choice that when an ASA registers itsel=
f
>> with GRASP it gets back a nonce, used to validate future calls, so
>> that no other process can masquerade as the same ASA. And yes, I
>> just re-used the existing Session ID mechanism to assign that nonce.
>> However, each transaction that an ASA initiates will get its own
>> Session ID.
>>
>>> Why is the 30000 a parameter passed into the into the grasp.discover =
call? This looks like a timeout for how long to wait for a response (GRAS=
P_DEF_TIMEOUT/2)? If so this would provide the 30s behavior but is levera=
ging a side-effect dubiously. Sufficient for PoC; I=E2=80=99m just asking=
 to understand.
>>
>> Correct. Again, it's just an implementation choice and I agree it's a =
bit
>> of a kludge. It could be done more elegantly. (Although I must say tha=
t the
>> threading support in Python is a dream to use.)
>=20
> all goodness. thanks.=20
>=20
>>
>>>
>>> Toerless=E2=80=99s suggestion appears to be to include the =E2=80=9Cl=
ocator-option=E2=80=9D within the discover message. Did you include that?=
 Currently "locator-option=E2=80=9D is not part of the [grasp] s3.7.2 Dis=
cover Message. Are you comfortable adding that as Toerless argues for?
>>
>> It turns out that we have to do that anyway, for other reasons that Jo=
el Halpern
>> pointed out (since Session IDs are unique per node, not network-wide).=
 That will
>> be fixed in the next GRASP draft. But in any case, the recipient of a =
LL multicast
>> can know the source address (and interface #) even if they are not in =
the payload.
>> So this isn't a problem.
>>
>> However, I do think that the "announcement" nature of this is better s=
uited
>> to the unsolicited flooding message than the Discovery message, becaus=
e then
>> it's natural to include data in the message.
>=20
> so rather than add =E2=80=9Clocator-option=E2=80=9D to the discovery me=
ssage use unsolicited response messages. This makes sense (very similar t=
o mDNS approach!).=20
>=20
> FYI - as an editorial note the paragraph explaining flooding is buried =
in s3.3.5 and could probably be called out more clearly in the text. Perh=
aps its own section or in the Response section? Similarly s3.9.1 includes=
 the text: "and for terminating flooding as described in FLOODING=E2=80=9D=
 which looks like an incomplete reference as if you had already planned t=
o pull flooding out into its own section.
>=20
> - max
>=20
>>
>>    Brian
>>
>>>
>>> - max
>>>
>>>> On Dec 3, 2015, at 9:27 PM, Brian E Carpenter <brian.e.carpenter@gma=
il.com> wrote:
>>>>
>>>> On 04/12/2015 14:43, Toerless Eckert wrote:
>>>>
>>>> ...
>>>>>  IMHO, i would let the proxy periodically (30 secs) just announce t=
hat its providing
>>>>>  AN enrollment proxy function via link-local IPv6 multicast.=20
>>>>
>>>> Here's the Python code to do that with my prototype:
>>>>
>>>> import grasp
>>>> import time
>>>>
>>>> OK, nonce =3D grasp.register_asa("Boot")
>>>> if not OK:
>>>>   #we've got a serious problem...
>>>>   raise RuntimeError("Can't register as ASA")
>>>>
>>>> obj =3D objective(0,":Boot")
>>>> x =3D grasp.register_obj(nonce, obj)
>>>> if not x =3D=3D "OK":
>>>>   #we've got a different problem...
>>>>   raise RuntimeError(x)
>>>>
>>>> while True:
>>>>   grasp.discover(nonce, obj, 30000)
>>>>
>>>> What this does is register the caller as an ASA called "Boot" that h=
andles the
>>>> objective called ":Boot", and then LL multicast a discovery message =
every
>>>> 30s. That will tell the others that it's there. It's running in anot=
her window
>>>> as I type. I didn't write the handler code for the receiving end yet=
 though,
>>>> so I just get output like this twice a minute:
>>>>
>>>> CBOR->Python gives:  [1, 1248700, b'$\x06\xe0\x07S\x07\x00\x01(\xcc\=
xdcL\x97\x03g\x81', ':Boot', 0, 6, 0]
>>>>
>>>>> Maybe with port-number
>>>>>  and protocol (EST over IPv6 link-local ) as parameters so it's ext=
ensible.
>>>>
>>>> If you want parameters, we'd need to use the (synch) flooding method=

>>>> instead. Maybe I'll write that code next week; it will be very simil=
ar to
>>>> the discovery case. I don't think there are any real problems here.
>>>>
>>>> Python+CBOR is fun. Thanks, Toerless, for pushing the CBOR idea.
>>>>
>>>>  Brian
>>>>
>>>> _______________________________________________
>>>> Anima-bootstrap mailing list
>>>> Anima-bootstrap@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/anima-bootstrap
>>>
>>
>=20


From nobody Mon Dec  7 00:54:59 2015
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From: peter van der Stok <stokcons@xs4all.nl>
To: Toerless Eckert <eckert@cisco.com>
Organization: vanderstok consultancy
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Hi Toerless,

A few remarks to your extensive e_mail


>    Also comparison with mDNS as we discussed it:
>      - code size: We need GRASP for more functions in AN beside 
> discovery,
>        we do not need mDNS for anything in AN, so on IoT devices we 
> would save
>        code size. TBD: Size of an mDNS stack (note: We MAY want 
> "normal" DNS,
>        so the code size for mDNS may not be that large as a delta on 
> top of
>        "normal" DNS).
>      - Number of packet exchanges (TBD: not clear how much this is a 
> real
>        problem, mDNS may optimize here): mDNS exchange is logical three 
> step:
>        PTR RR lookup -> SRV, TXT RR lookup, AAAA lookup
>      - mDNS being a query/reply exchange wouldn't have the security 
> properties
>        i described above. Unless you abuse it and engineer an MDNS 
> unsolicited
>        announce periodically with all the four RRs included. And i 
> guess
>        one could define a TXT RR with the signed timestamp. Aka: I
> could probably
>        do the same thing i was describing above also with mDNS. Not 
> sure if
>        mDNS people would like that...

I checked mDNS-SD (it is not too complex),
It is sufficient to send a query for the SRV RR containing the required 
service.
(Knowing that your service must exist removes the need for checking its 
existence, so no PTR query).
mDNS should also return the AAAA RR defined by the contents of the SRV 
RR in the same message.
The DNS encoding of the messages is pretty concise. (for example, name 
strings occur only once)

> 
> 2. If 1. failed:  OPTIONAL Discovery of bootstrap proxy via L3
> 
Many installations will have their own brand of service discovery (SD).
Inter-operability of SD is the first objective; we can safely assume 
that if a given brand of SD is used,
the whole installation uses this brand as specified by a SDO that is 
active in this particular market.

I think it is sufficient to state that the proxy service needs to be 
discovered
and how this can be done with DNS-SD (mDNS) or DHCP, the IETF standards.

Greetings,

Peter
> 
> 
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


From nobody Mon Dec  7 09:37:08 2015
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Subject: [Anima-bootstrap] notes from 2015-12-03 design team meeting
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable


This meeting occured at 2015-12-03 11:00 EST, 1600 UTC on a IETF webex,
(but, we forgot to hit record, I think)
and used the IETF etherpad for note taking and discussion.

Present were:
        Michael Richardson,
        Peter van der Stok,
        Carsten Bormann,
        Michael Behringer,
        Max Pritikin,
        Toerless Eckert,
        Robert Cragie

Topic for this week was contents of certificate that will be provisioned
via EST.
(Topics for next two weeks:
        1. PROTOCOL STACK              2015-12-10.
        2. DISCOVERY MECHANISM         2015-12-17.
)

We discussed some of the question as to what the new node does to get online
enough to get a connection to the Domain registry, and the text of
anima-bootstrap section 3.1.1 was posted, and then amended as follows at
REVISED311 below.

The core of the discussion was then around the question of what shows up in
the resulting Domain-specific certificate that the registry issues as the
LDevID. Is it related to the IDevID contents, and do we have a strong enough
specification in 802.1AR?
{{802.11AR drafts are at: http://www.ieee802.org/1/pages/802.1ar.html
           and if you enter your email address at:
           http://standards.ieee.org/getieee802/download/802.1AR.-2009.pdf

and section 7 details the contents, including:
     version, (certificate) serialNumber, signature, issuer,

7.2.8 subject
      The DevID subject field shall uniquely identify the device associated
      with the particular DevID credential within the issuer=E2=80=99s doma=
in of
      significance. The formatting of this field shall contain a unique X.5=
00
      Distinguished Name (DN). This may include the unique device serial
      number assigned by the manufacturer or any other suitable unique DN
      value that the issuer prefers. In the case of a third-party CA or a
      standards certification agency, this can contain the manufacturer=E2=
=80=99s
      identity information. The subject field=E2=80=99s DN encoding should =
include
      the =E2=80=9CserialNumber=E2=80=9D attribute with the device=E2=80=99=
s unique serial number.

7.2.9 subjectAltName
      The non-critical DevID subjectAltName extension may supplement the
      subject field identity information as specified in RFC 5280 by
      containing a hardwareModuleName as specified in RFC 4108 [B22].

So essentially 802.1AR says to have a DN, says nothing other than it should
include a serialNumber, but doesn't say anything about the format of that,
and then punts to RFC5280 and RFC4108.


An exaple was pasted in from a Cisco CPE device:

Certificate
  Status: Available
  Certificate Serial Number (hex): 138BA1550000002D9F7A
  Certificate Usage: General Purpose
  Issuer:
    cn=3DCisco Manufacturing CA
    o=3DCisco Systems
  Subject:
    Name: C819HWD-A-K9
    Serial Number: PID:C819HWD-A-K9 SN:FTX1XXXXZ (this is the x500 serialnu=
mber attribute under the subject name)
    cn=3DC819HWD-A-K9
    serialNumber=3DPID:C819HWD-A-K9 SN:FXXXXFZ
  CRL Distribution Points:
    http://www.cisco.com/security/pki/crl/cmca.crl
  Validity Date:
    start date: 20:38:14 MET Apr 12 2013
    end   date: 20:48:14 MET Apr 12 2023
  Associated Trustpoints: CISCO_IDEVID_SUDI

NOTE: because the unique inforamtion is the vendor information (who signed
this cert) and the serial number (from the subjectname) these need to both =
be
moved, in some fasion, to create a unique identity within the domain. For
example: SHALL copy the "issuer o=3DCisco Systems" into the subject of the
LDevID.

It was noted in the call that the serialNumber attribute in this example he=
re
was not just a number, as one might expect from 7.2.8, but also includes the
model (which is redundant with the CN), and also text "SN:" and "PID:".

We would expect the Domain registrar to take this SN, and attach to it as
part of the DN, the vendor name, because the issuer will be the domain
registry.

So the resulting Domain (LDevID) Certificate subject name in this case will=
 become:
    o=3DCisco Systems, Serial Number: PID:C819HWD-A-K9 SN:FTXXXXXXX

Thus the 'o' field of the LDevID is the original issuer thus providing
   uniqueness for all certs.

subject name =3D "Cisco Systems; PID:C819HWD-A-K9 SN:FTX171585FZ"

It will be difficult to make a normative reference for this. Perhaps use the
'authoritykeyIdentifier' instead? Less human readable though.

802.1AR s7.2.4: "Because uniqueness cannot be guaranteed, the issued
        DevIDcredentials contain the authorityKeyIdentifier extension".

During discussion it was pointed out this could be mapped to a human readab=
le
value by the registrar (e.g. authoritykeyIdentifier-X =3D Cisco and -Y=3DJu=
niper)

QUESTION: is there some mapping to the ip address issued?

PRIVACY OBSERVATION: with IKEv2, and TLS1.3 (but not TLS 1.2), the certific=
ate
        contents are not visible to passive eavesdroppers during key agreem=
ent.

MCR wondered on the call if we should provide some guidance on how/where to
point for CRL distribution point for 802.1AR IDevID; is concerned about
vendors using their marketing web sites for critical infrastructure use.

Toerless pastes current LDevID has been assigning at Cisco Autonomic "lab":

Certificate
  Status: Available
  Certificate Serial Number (hex): 04
  Certificate Usage: General Purpose
  Issuer:
    cn=3DANRA-CS
  Subject:
    Name: 0200.0000.6400-3
    Serial Number: PID:Unix SN:101
    ou=3Dneat.org+serialNumber=3DPID:Unix SN:101   <-- should include the o=
riginal vendor information for multi-vendor deployments
    cn=3D0200.0000.6400-3                        <-- mac address of the reg=
istar plus the serial number of the device "-3" (in this example)
  Validity Date:
    start date: 10:45:21 CET Dec 2 2015
    end   date: 10:45:21 CET Dec 1 2016
  Associated Trustpoints: AN-Domain


Explanation: "0200.0000.6400" is mac address of *registrarD* -3 is the third
             certificate issued, so it's unique.
    "PID:Unix SN:101" is what the product provided.


REVISED311:

    Current text of section 3.1.1 (with modifications here)
   1.  MUST: Obtains a link local address using either IPv4 or IPv6 methods
       as described in [[EDNOTE: we need a reference:]].https://tools.ietf.=
org/html/rfc3927: Dynamic Configuration of IPv4 Link-Local Addresses

    only ipv6 link local (not ipv4)
reorder to #1


   2.  MUST: Attempt to establish a D/TLS connection to the next hop
       neighbor at a well known AN port building on the [[EDNOTE: AN
       node discovery discussion, need a reference??]].  [Toerless to
       provide updated text]
       reorder to #??

   3.  MUST: unsecured-GRASP as a link local discovery method?
       [Toerless to provide updated text]
       reorder to #4

   4.  MAY: Performs DNS-based Service Discovery [RFC6763] over
       Multicast DNS [RFC6762] searching for the service
       "_bootstrapks._tcp.local."
reorder to #2.

MCR suggests "anycast" here as an alternative to mDNS or GRASP. [ref: RFC47=
86? RFC7094?]
          https://tools.ietf.org/html/rfc2526 and https://tools.ietf.org/ht=
ml/rfc4291

          argument in favor of mDNS: the complexity addresses real problems=
 that must be addressed for consistent operations.
          toerless is worried about the multiple DNS operations (chasing PT=
R records)

   5.  MAY: Performs DNS-based Service Discovery [RFC6763] over normal
       DNS operations.  In this case the domain is known so the service
       searched for is "_bootstrapks._tcp.example.com".

   6.  MAY: If no local bootstrapks service is located using the DNS-
       based Sevice Discovery methods the New Entity contacts a well
       known vendor provided bootstrapping server by perfoming a DNS
       lookup using a well known URI such as "bootstrapks.vendor-
       example.com".


=2D-
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -=3D IPv6 IoT consulting =3D-




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From nobody Mon Dec  7 11:05:04 2015
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To: consultancy@vanderstok.org, Toerless Eckert <eckert@cisco.com>
References: <20151204014333.GZ29056@cisco.com> <6471865864850e6c34961f12d45853cd@xs4all.nl>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Tue, 8 Dec 2015 08:05:00 +1300
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Cc: anima-bootstrap@ietf.org
Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On 07/12/2015 21:54, peter van der Stok wrote:
> Hi Toerless,
> 
> A few remarks to your extensive e_mail
> 
> 
>>    Also comparison with mDNS as we discussed it:
>>      - code size: We need GRASP for more functions in AN beside discovery,
>>        we do not need mDNS for anything in AN, so on IoT devices we would save
>>        code size. TBD: Size of an mDNS stack (note: We MAY want "normal" DNS,
>>        so the code size for mDNS may not be that large as a delta on top of
>>        "normal" DNS).
>>      - Number of packet exchanges (TBD: not clear how much this is a real
>>        problem, mDNS may optimize here): mDNS exchange is logical three step:
>>        PTR RR lookup -> SRV, TXT RR lookup, AAAA lookup
>>      - mDNS being a query/reply exchange wouldn't have the security properties
>>        i described above. Unless you abuse it and engineer an MDNS unsolicited
>>        announce periodically with all the four RRs included. And i guess
>>        one could define a TXT RR with the signed timestamp. Aka: I
>> could probably
>>        do the same thing i was describing above also with mDNS. Not sure if
>>        mDNS people would like that...
> 
> I checked mDNS-SD (it is not too complex),
> It is sufficient to send a query for the SRV RR containing the required service.
> (Knowing that your service must exist removes the need for checking its existence, so no PTR query).
> mDNS should also return the AAAA RR defined by the contents of the SRV RR in the same message.
> The DNS encoding of the messages is pretty concise. (for example, name strings occur only once)
> 
>>
>> 2. If 1. failed:  OPTIONAL Discovery of bootstrap proxy via L3
>>
> Many installations will have their own brand of service discovery (SD).
> Inter-operability of SD is the first objective; we can safely assume that if a given brand of SD is used,
> the whole installation uses this brand as specified by a SDO that is active in this particular market.
> 
> I think it is sufficient to state that the proxy service needs to be discovered
> and how this can be done with DNS-SD (mDNS) or DHCP, the IETF standards.

Just remember that in a truly autonomic network built with factory-reset
devices, we cannot assume that anything at all has been configured or
named.

    Brian


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Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
    >> IMHO, i would let the proxy periodically (30 secs)

    > Is it acceptable that a new device sits for 30s before joining? Should
    > this be shorter? Longer? What criteria do we use to choose (see below
    > before answering).

    >> I don't want the enrolling device to be more attackable than
    >> necessarily.  Arguably such a greenfield device may be more attackab=
le
    >> than a configured device. An unconfigured device that periodically
    >> broadcasts "hey, i am unconfigured and look for a proxy server"
    >> (especially when powered on in a non-AN enviroment) is the best vict=
im
    >> ever to do a port-scan etc. pp.  on (or just find the console
    >> interface). And just because a vendor has added autonomic networking
    >> doesn't mean he has now also fixed all security for all OS services
    >> many of which may not even be off by default but would likely be
    >> configured off by security sensitive operators.

This is one reason I'd like the new device to do things that configured
devices do regularly.
So sending out a multicast IKEv2 INIT might really make sense here.
Every device should do it every 5 to 15 minutes.

A new device will either send them, or receive them.  Either way, it can
respond and within the privacy of IKEv2, can do something.
That doesn't you can't use a proxy to get things through: the resulting
one-hop-ACP won't be part of the production ACP.

    >> So, i think we can use GARP DISCOVER for this periodic multicast,

    > Multicast DNS supports multicast =E2=80=9Cunsolicited=E2=80=9D respon=
ses and also
    > specifically states that peers cache these. So the basic behavior you
    > are requesting is fundamentally available from mDNS as well. This is a
    > design choice for Anima but I doesn=E2=80=99t seem to dramatically im=
pact our
    > choice of discovery protocols.

mDNS is another good mechanism to use --- and it doesn't scream out, "newbi=
e"
either.

    >> Also comparison with mDNS as we discussed it: - code size: We need
    >> GRASP for more functions in AN beside discovery, we do not need mDNS
    >> for anything in AN, so on IoT devices we would save code size. TBD:
    >> Size of an mDNS stack (note: We MAY want "normal" DNS, so the code
    >> size for mDNS may not be that large as a delta on top of "normal"
    >> DNS).

    > This is where the real value/difference discussion comes in. I guess =
we
    > could build an avahi library and see how much the entire thing takes =
or
    > how big pieces of it are.

I claim that much of what we are doing with the ACP and GRASP is outside the
code space limit for a constrained IoT device, so I don't buy this argument.

1) mDNS *IS* useful in IoT space, so the code isn't wasted.
2) GRASP is *not* useful in constrained IoT space.

    >> And i guess one could define a TXT RR with the signed timestamp. Aka:
    >> I could probably do the same thing i was describing above also with
    >> mDNS. Not sure if mDNS people would like that=E2=80=A6

    > For a DNS based solution I guess DNSsec integration would be
    > logical. I=E2=80=99m not sure I like any approach where we try to cra=
m security
    > into the discovery protocol =E2=80=94 the truth is that we don=E2=80=
=99t have
    > sufficient information to trust crypto methods in the
    > response/broadcast information until after we complete bootstrapping =
at
    > which point its relatively moot. Instead we can cut to the heart of
    > your security value by tracking "locator-option=E2=80=9D information =
seen and
    > freaking out if an unexpected one was seen (assuming GRASP).

Exactly: You can't easily do DNSSEC easily here: no trust anchors available=
 for
         joining device.  DNSSEC can give you an alternative to 802.1AR
         certificates though, but it replaces that part.

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -=3D IPv6 IoT consulting =3D-




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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>, "Max Pritikin (pritikin)" <pritikin@cisco.com>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Date: Mon, 7 Dec 2015 21:27:43 +0000
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Mind to explain why you think grasp is outside the scope for constrained de=
vices ? With cbor encoding its comparable in compactness to coap, right ?




Sent from my Samsung Captivate Glide on AT&T

Michael Richardson <mcr+ietf@sandelman.ca> wrote:

Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
    >> IMHO, i would let the proxy periodically (30 secs)

    > Is it acceptable that a new device sits for 30s before joining? Shoul=
d
    > this be shorter? Longer? What criteria do we use to choose (see below
    > before answering).

    >> I don't want the enrolling device to be more attackable than
    >> necessarily.  Arguably such a greenfield device may be more attackab=
le
    >> than a configured device. An unconfigured device that periodically
    >> broadcasts "hey, i am unconfigured and look for a proxy server"
    >> (especially when powered on in a non-AN enviroment) is the best vict=
im
    >> ever to do a port-scan etc. pp.  on (or just find the console
    >> interface). And just because a vendor has added autonomic networking
    >> doesn't mean he has now also fixed all security for all OS services
    >> many of which may not even be off by default but would likely be
    >> configured off by security sensitive operators.

This is one reason I'd like the new device to do things that configured
devices do regularly.
So sending out a multicast IKEv2 INIT might really make sense here.
Every device should do it every 5 to 15 minutes.

A new device will either send them, or receive them.  Either way, it can
respond and within the privacy of IKEv2, can do something.
That doesn't you can't use a proxy to get things through: the resulting
one-hop-ACP won't be part of the production ACP.

    >> So, i think we can use GARP DISCOVER for this periodic multicast,

    > Multicast DNS supports multicast =93unsolicited=94 responses and also
    > specifically states that peers cache these. So the basic behavior you
    > are requesting is fundamentally available from mDNS as well. This is =
a
    > design choice for Anima but I doesn=92t seem to dramatically impact o=
ur
    > choice of discovery protocols.

mDNS is another good mechanism to use --- and it doesn't scream out, "newbi=
e"
either.

    >> Also comparison with mDNS as we discussed it: - code size: We need
    >> GRASP for more functions in AN beside discovery, we do not need mDNS
    >> for anything in AN, so on IoT devices we would save code size. TBD:
    >> Size of an mDNS stack (note: We MAY want "normal" DNS, so the code
    >> size for mDNS may not be that large as a delta on top of "normal"
    >> DNS).

    > This is where the real value/difference discussion comes in. I guess =
we
    > could build an avahi library and see how much the entire thing takes =
or
    > how big pieces of it are.

I claim that much of what we are doing with the ACP and GRASP is outside th=
e
code space limit for a constrained IoT device, so I don't buy this argument=
.

1) mDNS *IS* useful in IoT space, so the code isn't wasted.
2) GRASP is *not* useful in constrained IoT space.

    >> And i guess one could define a TXT RR with the signed timestamp. Aka=
:
    >> I could probably do the same thing i was describing above also with
    >> mDNS. Not sure if mDNS people would like that=85

    > For a DNS based solution I guess DNSsec integration would be
    > logical. I=92m not sure I like any approach where we try to cram secu=
rity
    > into the discovery protocol =97 the truth is that we don=92t have
    > sufficient information to trust crypto methods in the
    > response/broadcast information until after we complete bootstrapping =
at
    > which point its relatively moot. Instead we can cut to the heart of
    > your security value by tracking "locator-option=94 information seen a=
nd
    > freaking out if an unexpected one was seen (assuming GRASP).

Exactly: You can't easily do DNSSEC easily here: no trust anchors available=
 for
         joining device.  DNSSEC can give you an alternative to 802.1AR
         certificates though, but it replaces that part.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -=3D IPv6 IoT consulting =3D-




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<div>
<div>Mind to explain why you think grasp is outside the scope for constrain=
ed devices ? With cbor encoding its comparable in compactness to coap, righ=
t ?</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style=3D"font-size:75%; color:#575757">Sent from my Samsung Captivate =
Glide on AT&amp;T</div>
</div>
<br>
Michael Richardson &lt;mcr&#43;ietf@sandelman.ca&gt; wrote:<br>
</div>
<font size=3D"2"><span style=3D"font-size:10pt;">
<div class=3D"PlainText"><br>
Max Pritikin (pritikin) &lt;pritikin@cisco.com&gt; wrote:<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; IMHO, i would let the proxy periodically (30 se=
cs)<br>
<br>
&nbsp;&nbsp;&nbsp; &gt; Is it acceptable that a new device sits for 30s bef=
ore joining? Should<br>
&nbsp;&nbsp;&nbsp; &gt; this be shorter? Longer? What criteria do we use to=
 choose (see below<br>
&nbsp;&nbsp;&nbsp; &gt; before answering).<br>
<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; I don't want the enrolling device to be more at=
tackable than<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; necessarily.&nbsp; Arguably such a greenfield d=
evice may be more attackable<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; than a configured device. An unconfigured devic=
e that periodically<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; broadcasts &quot;hey, i am unconfigured and loo=
k for a proxy server&quot;<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; (especially when powered on in a non-AN envirom=
ent) is the best victim<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; ever to do a port-scan etc. pp.&nbsp; on (or ju=
st find the console<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; interface). And just because a vendor has added=
 autonomic networking<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; doesn't mean he has now also fixed all security=
 for all OS services<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; many of which may not even be off by default bu=
t would likely be<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; configured off by security sensitive operators.=
<br>
<br>
This is one reason I'd like the new device to do things that configured<br>
devices do regularly.<br>
So sending out a multicast IKEv2 INIT might really make sense here.<br>
Every device should do it every 5 to 15 minutes.<br>
<br>
A new device will either send them, or receive them.&nbsp; Either way, it c=
an<br>
respond and within the privacy of IKEv2, can do something.<br>
That doesn't you can't use a proxy to get things through: the resulting<br>
one-hop-ACP won't be part of the production ACP.<br>
<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; So, i think we can use GARP DISCOVER for this p=
eriodic multicast,<br>
<br>
&nbsp;&nbsp;&nbsp; &gt; Multicast DNS supports multicast =93unsolicited=94 =
responses and also<br>
&nbsp;&nbsp;&nbsp; &gt; specifically states that peers cache these. So the =
basic behavior you<br>
&nbsp;&nbsp;&nbsp; &gt; are requesting is fundamentally available from mDNS=
 as well. This is a<br>
&nbsp;&nbsp;&nbsp; &gt; design choice for Anima but I doesn=92t seem to dra=
matically impact our<br>
&nbsp;&nbsp;&nbsp; &gt; choice of discovery protocols.<br>
<br>
mDNS is another good mechanism to use --- and it doesn't scream out, &quot;=
newbie&quot;<br>
either.<br>
<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; Also comparison with mDNS as we discussed it: -=
 code size: We need<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; GRASP for more functions in AN beside discovery=
, we do not need mDNS<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; for anything in AN, so on IoT devices we would =
save code size. TBD:<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; Size of an mDNS stack (note: We MAY want &quot;=
normal&quot; DNS, so the code<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; size for mDNS may not be that large as a delta =
on top of &quot;normal&quot;<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; DNS).<br>
<br>
&nbsp;&nbsp;&nbsp; &gt; This is where the real value/difference discussion =
comes in. I guess we<br>
&nbsp;&nbsp;&nbsp; &gt; could build an avahi library and see how much the e=
ntire thing takes or<br>
&nbsp;&nbsp;&nbsp; &gt; how big pieces of it are.<br>
<br>
I claim that much of what we are doing with the ACP and GRASP is outside th=
e<br>
code space limit for a constrained IoT device, so I don't buy this argument=
.<br>
<br>
1) mDNS *IS* useful in IoT space, so the code isn't wasted.<br>
2) GRASP is *not* useful in constrained IoT space.<br>
<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; And i guess one could define a TXT RR with the =
signed timestamp. Aka:<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; I could probably do the same thing i was descri=
bing above also with<br>
&nbsp;&nbsp;&nbsp; &gt;&gt; mDNS. Not sure if mDNS people would like that=
=85<br>
<br>
&nbsp;&nbsp;&nbsp; &gt; For a DNS based solution I guess DNSsec integration=
 would be<br>
&nbsp;&nbsp;&nbsp; &gt; logical. I=92m not sure I like any approach where w=
e try to cram security<br>
&nbsp;&nbsp;&nbsp; &gt; into the discovery protocol =97 the truth is that w=
e don=92t have<br>
&nbsp;&nbsp;&nbsp; &gt; sufficient information to trust crypto methods in t=
he<br>
&nbsp;&nbsp;&nbsp; &gt; response/broadcast information until after we compl=
ete bootstrapping at<br>
&nbsp;&nbsp;&nbsp; &gt; which point its relatively moot. Instead we can cut=
 to the heart of<br>
&nbsp;&nbsp;&nbsp; &gt; your security value by tracking &quot;locator-optio=
n=94 information seen and<br>
&nbsp;&nbsp;&nbsp; &gt; freaking out if an unexpected one was seen (assumin=
g GRASP).<br>
<br>
Exactly: You can't easily do DNSSEC easily here: no trust anchors available=
 for<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; joining device.&nbsp; DNSS=
EC can give you an alternative to 802.1AR<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; certificates though, but i=
t replaces that part.<br>
<br>
--<br>
Michael Richardson &lt;mcr&#43;IETF@sandelman.ca&gt;, Sandelman Software Wo=
rks<br>
&nbsp;-=3D IPv6 IoT consulting =3D-<br>
<br>
<br>
<br>
</div>
</span></font>
</body>
</html>

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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
Thread-Topic: [Anima-bootstrap] ACE and scope of bootstrap
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From: peter van der Stok <stokcons@xs4all.nl>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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>>> 2. If 1. failed:  OPTIONAL Discovery of bootstrap proxy via L3
>>> 
>> Many installations will have their own brand of service discovery 
>> (SD).
>> Inter-operability of SD is the first objective; we can safely assume 
>> that if a given brand of SD is used,
>> the whole installation uses this brand as specified by a SDO that is 
>> active in this particular market.
>> 
>> I think it is sufficient to state that the proxy service needs to be 
>> discovered
>> and how this can be done with DNS-SD (mDNS) or DHCP, the IETF 
>> standards.
> 
> Just remember that in a truly autonomic network built with 
> factory-reset
> devices, we cannot assume that anything at all has been configured or
> named.
> 
>     Brian
Yes, but there is a minimum set of services on which you rely: e.g. UDP, 
DNS, ..
The discovery alternatives cited by toerless impress me as a list of 
services of which at least one must be present.

Therefore my consideration that for something as basic as Service 
discovery, some industries may regret that they need for example mDNS 
next to their favoured discovery service e.g. Resource Directory.
Faced with this choice they may decide that mDNS is not wanted but 
replaced by RD; and the Anima code in their products is adapted for that 
choice; while maintaining interoperability with ANIMA routers in all 
other respects.

Peter


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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: "consultancy@vanderstok.org" <consultancy@vanderstok.org>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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--=-=-=
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Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
    >> This is one reason I'd like the new device to do things that
    >> configured devices do regularly.  So sending out a multicast IKEv2
    >> INIT might really make sense here.  Every device should do it every 5
    >> to 15 minutes.
    >>
    >> A new device will either send them, or receive them.  Either way, it
    >> can respond and within the privacy of IKEv2, can do something.  That
    >> doesn't you can't use a proxy to get things through: the resulting
    >> one-hop-ACP won't be part of the production ACP.

    > Michael, I failed to parse your response.

    > Are you agreeing with Toerless=E2=80=99 argument that the new device =
should be
    > a responder?

No. I'm saying that a new device should do as little as possible to call
attention to itself, and should prefer to do things that all other devices
are already doing.

    > Or, are you arguing that the new device should initiate the
    > bootstrapping; but do so in a way that does not expose it is a new
    > device?

For non-challenged (IoT) devices on non-challenged networks, the new device=
 should
initiate and drive the bootstrapping.

It would be best if this communication was indistinguishable from other ACP
communication to an outsider.


=2D-
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -=3D IPv6 IoT consulting =3D-




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From: "Max Pritikin (pritikin)" <pritikin@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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To: "Max Pritikin (pritikin)" <pritikin@cisco.com>, Michael Richardson <mcr+ietf@sandelman.ca>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On 09/12/2015 12:48, Max Pritikin (pritikin) wrote:
>=20
>> On Dec 8, 2015, at 3:37 PM, Michael Richardson <mcr+ietf@sandelman.ca>=
 wrote:
>>
>>
>> Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
>>>> This is one reason I'd like the new device to do things that
>>>> configured devices do regularly.  So sending out a multicast IKEv2
>>>> INIT might really make sense here.  Every device should do it every =
5
>>>> to 15 minutes.
>>>>
>>>> A new device will either send them, or receive them.  Either way, it=

>>>> can respond and within the privacy of IKEv2, can do something.  That=

>>>> doesn't you can't use a proxy to get things through: the resulting
>>>> one-hop-ACP won't be part of the production ACP.
>>
>>> Michael, I failed to parse your response.
>>
>>> Are you agreeing with Toerless=E2=80=99 argument that the new device =
should be
>>> a responder?
>>
>> No. I'm saying that a new device should do as little as possible to ca=
ll
>> attention to itself,
>=20
> Ok, sounds like you=E2=80=99re agreeing with the threat but not necessa=
rily the suggested mitigation.
>=20
>> and should prefer to do things that all other devices
>> are already doing.
>=20
> I=E2=80=99m partially convinced that its worth minimizing how much a de=
vice =E2=80=9Csticks its neck out=E2=80=9D but once bootstrap is initiate=
d I don=E2=80=99t think hiding the exchange is very easy nor worth the ef=
fort.
>=20
>>
>>> Or, are you arguing that the new device should initiate the
>>> bootstrapping; but do so in a way that does not expose it is a new
>>> device?
>>
>> For non-challenged (IoT) devices on non-challenged networks, the new d=
evice should
>> initiate and drive the bootstrapping.
>>
>> It would be best if this communication was indistinguishable from othe=
r ACP
>> communication to an outsider.
>=20
> This can only occur if bootstrapping is over a =E2=80=9Cprovisional=E2=80=
=9D ACP. I=E2=80=99m uncomfortable with having GRASP and ACP include spec=
ial cases for bootstrapping. My gut feel is that the simplicity of a spec=
ific bootstrapping sequence =E2=80=94 even if identifiable =E2=80=94 is p=
referable.=20
>=20
> A *non-privacy* preserving bootstrapping is preferable from a certain p=
oint of view. I want my autonomic network to track and identify any overl=
apping autonomic bootstrapping to domains I don=E2=80=99t recognize.=20

I *really* don't see how the first step can be anything other than a
recognizable unencrypted multicast probe, whether it is sent by the joine=
r or
by some node that is already trusted. You could require that the unencryp=
ted
probe includes a public key so that a unicast response can be encrypted; =
but
neither end is authenticated at that stage.

   Brian

   Brian


From nobody Wed Dec  9 01:58:27 2015
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Date: Wed, 9 Dec 2015 01:58:21 -0800
From: Toerless Eckert <eckert@cisco.com>
To: anima-bootstrap <anima-bootstrap@ietf.org>
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Subject: [Anima-bootstrap] Meeting time this week ?
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So, what's the meeting time this week if any... today (wednesday) or tomorrow,
sorry confused because i think nobody generated an outlook invite i can see in
my calendar ;-)

Thanks
    Toerless


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From: "Michael Behringer (mbehring)" <mbehring@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, "Max Pritikin (pritikin)" <pritikin@cisco.com>, Michael Richardson <mcr+ietf@sandelman.ca>
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> The discovery alternatives cited by toerless impress me as a list of serv=
ices of
> which at least one must be present.
>=20
> Therefore my consideration that for something as basic as Service discove=
ry,
> some industries may regret that they need for example mDNS next to their
> favoured discovery service e.g. Resource Directory.
> Faced with this choice they may decide that mDNS is not wanted but
> replaced by RD; and the Anima code in their products is adapted for that
> choice; while maintaining interoperability with ANIMA routers in all othe=
r
> respects.

At the end of the day I personally don't care *how* a domain certificate ge=
ts onto a new device.=20

Probably we should be more clear on this, draw a big line, and state that t=
he domain enrolment process may be replaced by many other methods, and that=
's ok.

So for us here that means, AN must also work if the domain certificates are=
 (for whatever reason) already on the devices. I.e., what happens later in =
the AN process must not depend on anything in the bootstrap process, except=
 the PKI info.=20

Michael
=20
> Peter
>=20
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


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Date: Wed, 9 Dec 2015 05:12:34 -0800
From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On Wed, Dec 09, 2015 at 01:32:36PM +1300, Brian E Carpenter wrote:
> I *really* don't see how the first step can be anything other than a
> recognizable unencrypted multicast probe, whether it is sent by the joiner or
> by some node that is already trusted. You could require that the unencrypted
> probe includes a public key so that a unicast response can be encrypted; but
> neither end is authenticated at that stage.

Brian:

Max'es original argument was to minimize the invention of new secure association
setup. So when you need a secure association for bootstrap, we rely on TLS for EST.
When we need a secure association for ACP/GRASP, we rely on (d)TLS (still have to
decide in detail how to do this).

If this argument makes sense to the team, then i think we do not need crypto
info in the multicast discovery, because the response will directly be the first
packets of (d)TLS for EST or ACP/GRAP - eg: nothing new needed.

The only idea i could think of was to include crypto information in the multicast
announcement not for the benefit of the security association itself, but for the benefit
of a third party observer that tries to ensure no attacker sends discoveries to prey
on defenseless unconfigured greenfield devices.

I am happy about any new valuable crypto we can put into the discovery, i just
want to make sure we can be precise about the attack vector it helps to protect
against.

Cheers
    Toerless


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Date: Wed, 9 Dec 2015 05:22:24 -0800
From: "Toerless Eckert (eckert)" <eckert@cisco.com>
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Michael:

Lets assume we replace EST bootstraap with "a guy with a USB stick feeding
manually domain certs to greenfield devices".

a) I agree that we would want to make sure our protocols are set up so that even such
   a device could perfectly bring up ACP afterwards and continue with the rest
   of autonomic functions (GRASP inside ACP, agents,...). 

b) I don't think we would want to call such a device "autonomic". It's partial
   autonomic at best. But yes, it may be perfectly valid and relevant to some
   industries.

If you agree, then the problem is IMHO primarily in the reference model calling
out that devices that for one reason or the other can not / want-not implement
the whole ANIMA suite can perfectly well implement just parts of it, because
ANIMA is defined such that the different building blocks are modular. Just that
such a device is only "partial-autonomic" (or  whatever you think is a good
naming to distinguish it from a truely autonomic device).

Btw: This also goes the other way, eg: it would IHO make sense that the bootstrap
spec can be deplpoyed on devices that do not want any further AN functions after
the certificates are enrolled. I think that option is also something we want to
explain in the bootstrap draft.

Cheers
    Toerless

On Wed, Dec 09, 2015 at 01:08:39PM +0000, Michael Behringer (mbehring) wrote:
> > The discovery alternatives cited by toerless impress me as a list of services of
> > which at least one must be present.
> > 
> > Therefore my consideration that for something as basic as Service discovery,
> > some industries may regret that they need for example mDNS next to their
> > favoured discovery service e.g. Resource Directory.
> > Faced with this choice they may decide that mDNS is not wanted but
> > replaced by RD; and the Anima code in their products is adapted for that
> > choice; while maintaining interoperability with ANIMA routers in all other
> > respects.
> 
> At the end of the day I personally don't care *how* a domain certificate gets onto a new device. 
> 
> Probably we should be more clear on this, draw a big line, and state that the domain enrolment process may be replaced by many other methods, and that's ok.
> 
> So for us here that means, AN must also work if the domain certificates are (for whatever reason) already on the devices. I.e., what happens later in the AN process must not depend on anything in the bootstrap process, except the PKI info. 
> 
> Michael
>  
> > Peter
> > 
> > _______________________________________________
> > Anima-bootstrap mailing list
> > Anima-bootstrap@ietf.org
> > https://www.ietf.org/mailman/listinfo/anima-bootstrap


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On 10/12/2015 02:12, Toerless Eckert (eckert) wrote:
...
> I am happy about any new valuable crypto we can put into the discovery, i just
> want to make sure we can be precise about the attack vector it helps to protect
> against.

I very much agree with that. I wasn't actually saying we must add a public
key for the first exchange, just that we *could*. Actually the attack that really
puzzles me is this one:

Alice: Hello everybody, I want to join.

Bob: Hi Alice, I'll be your proxy today.
Eve: Hi Alice, I'll be your proxy today.

How does Alice know to listen to Bob and ignore Eve?
At that point she has no keys or certificates for Bob.

   Brian


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Date: Wed, 9 Dec 2015 11:23:13 -0800
From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Alice never knows until later.

a) Lets assume we're talking bout announcements by Bob/Eve to connect to their ACP.

   Minimally, Alice has no idea whom it wants to connect to. So it simply starts
   let's say dTLS to Bob and Eve. Alice will then figure out whether Bob and.or
   Eve have domain certs for the same domain Alice is in. If not, Alice (or Bob/Eve)
   will drop the dTLS connection.

   We could try to optimize by announcing Bob/Eve's domain certs into the
   discovery messages. This would save some unnecessary connection attempts by
   Alice. No strong opinions.

b) Lets assume we're talking about announcements by Bob/Eve to be enrollment proxies.

   So now Alice is not in a domain and will set up ESP "randomnly" to Bob and/or Eve.

   If we do not have a MASA, then Alice is really at the mercy of
   The guy who plugs Alice's cable into some network connection.
   "Do not plug into an untusty socket".

   Aka: Alice tries EST to Bob. Bob proxies to Bobs domain registrar which
   checks Alices serial number and decides that Alice does not belong to Bobs domain.

   Alices continues on to build EST to Eve. and may get accepted into domain there.

   Aka: Both Bob and Eve belong to friendly domains only accepting devices
   they know they own.

   If we do have a MASA, Alice can feel more secure. So it connects to Eve,
   and Eve 's domain registrar wants to have Alice - even thoug alice doesn't below
   to Eves domain, but Eve is evil in this case. Alice will only accept enrollment
   when Eve is producing to Alice a ticket from the MASA stating that Alice belongs
   to Alices domain. And Alice trusts this ticket because it ultimately came from
   a MASA that must belong to Alices manufacturer. And ensures that the manufacturer
   is at least logging that Eve's domain/registrar is claiming to own Alice. 

   I can't see how Bob/Eve announcing their certs here would help Alice at all
   before establishing the EST connection.

Cheers
    Toerless


   Mr. Carpenter wanted to have the insecure enrollment option without MASA
   (and eg: ciscos autonomic solution also does this, so inse)like alsoeg: cisco customers in our c(and Cisco customers) wanted to have the
   
   These announcemments could contain Bob/Eves domain certificates.

   Alice can now quickly validate that it wants to connect Bob
If this is not for bootstrap but announcements to connect ACP,
then
So, if this was an announceme
Irr
So, if this is
Alice would not know. Alice would (randomnly) build 
On Thu, Dec 10, 2015 at 07:59:33AM +1300, Brian E Carpenter wrote:
> On 10/12/2015 02:12, Toerless Eckert (eckert) wrote:
> ...
> > I am happy about any new valuable crypto we can put into the discovery, i just
> > want to make sure we can be precise about the attack vector it helps to protect
> > against.
> 
> I very much agree with that. I wasn't actually saying we must add a public
> key for the first exchange, just that we *could*. Actually the attack that really
> puzzles me is this one:
> 
> Alice: Hello everybody, I want to join.
> 
> Bob: Hi Alice, I'll be your proxy today.
> Eve: Hi Alice, I'll be your proxy today.
> 
> How does Alice know to listen to Bob and ignore Eve?
> At that point she has no keys or certificates for Bob.
> 
>    Brian

-- 
---
Toerless Eckert, eckert@cisco.com


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--=-=-=
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Max Pritikin (pritikin) <pritikin@cisco.com> wrote:
    >> For non-challenged (IoT) devices on non-challenged networks, the new=
 device should
    >> initiate and drive the bootstrapping.
    >>
    >> It would be best if this communication was indistinguishable from ot=
her ACP
    >> communication to an outsider.

    > This can only occur if bootstrapping is over a =E2=80=9Cprovisional=
=E2=80=9D ACP. I=E2=80=99m
    > uncomfortable with having GRASP and ACP include special cases for
    > bootstrapping. My gut feel is that the simplicity of a specific
    > bootstrapping sequence =E2=80=94 even if identifiable =E2=80=94 is pr=
eferable.

If we believe that a device could belong to multiple ACPs (see my other
post in reply to Brian for some reasons for an intra-ISP ACPs), then having
an extra tunnel up, on a "disconnected" VRF, for a joining device is not a
big deal, I think.

    > A *non-privacy* preserving bootstrapping is preferable from a certain
    > point of view. I want my autonomic network to track and identify any
    > overlapping autonomic bootstrapping to domains I don=E2=80=99t recogn=
ize.

Assuming that we use some non-private way to discover the enrollment proxy,
and we use (D)TLS 1.3, then observers would only see that there was a
bootstrap occuring.  They would observe the address of the enrollment, which
they might realize was not their own.

A multicasted IKE_INIT plus ACP would result in a tunnel with a device which
is not a recognized device, so would reveal the same amount of information =
to
an IDS.

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -=3D IPv6 IoT consulting =3D-




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Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
    > I *really* don't see how the first step can be anything other than a
    > recognizable unencrypted multicast probe, whether it is sent by the joiner or
    > by some node that is already trusted. You could require that the unencrypted
    > probe includes a public key so that a unicast response can be encrypted; but
    > neither end is authenticated at that stage.

Yes, that's true.
The point isn't that it's other than unencrypted multicast probe.

The point is that if this unencrypted multicast probe is a normal part of ACP
operation, then it is not obvious to (passive!) malicious observers which
device is actually bootstraping vs helping.

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Michael Behringer (mbehring) <mbehring@cisco.com> wrote:
    > I agree with Brian. New node and proxy need find each other, this
    > invariably will involve some mcast probe. And, mcr, I think also your
    > IKE proposal included IKE mcast packets initially, right? So also that
    > is not "normal" and will be detected. I think trying to hide the
    > process is impossible, thus we shouldn't even try to optimise toward
    > it, but focus on minimising disclosure.

Autonomic nodes will be regularly looking for other autonomic nodes on all
links in order to form redundant links for the ACP to use.  This is how the
adjacency table will be filled out.

We have a wide variety of possible multicasts available for populating the
advancy table. (And we should pick one, not many)
        1) NDs
        2) RPL DIS/DIO messages
        3) insecure-GRASPs
        4) mDNS

The advantage of doing this with IKEv2 (or TLS1.3) is that the identities
(and therefore bootstrap state) of each end point is only revealed within the
privacy of the initial DH.  [This is still subject to active eavesdropping!]

    > I think the optimum is:
    > - if the proxy sends out minimal information. Probably just something
    > identifying a domain. I don't see another way right now than doing this
    > periodically.
    > - if the new node sends nothing at all (ie just responds)

Well, my process would like:
      1) a multicast packet saying, "I'm an autonomic node" is sent out.
         It would have no domain or other identifying information.
         IKEv2 SA_INIT look something like:

IPv6 (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 864)
    fe80::3a60:77ff:fe38:e647.500 > ff02::1a.500: isakmp 2.0 msgid 00000000: parent_sa ikev2_init[I]:
    (sa: len=504
        (p: #1 protoid=isakmp transform=4 len=44
            (t: #1 type=encr id=aes (type=keylen value=0080))
            (t: #2 type=integ id=hmac-sha )
            (t: #3 type=prf id=hmac-sha )
            (t: #4 type=dh id=modp2048 ))
            ... see https://goo.gl/IHm6BJ for more details)
    (v2ke: len=256 group=modp2048)
    (nonce: len=16 data=(20989d37a814a64d8ff0...d320e9e3000000104f45706c75746f756e697430))
    (v2vid: len=12 vid=OEababababab)

2) a node seeing this, and wanting to establish a tunnel with that
      node, (whether to run an ACP over it, to offer to bootstrap it, or
      because it needs to be bootstraped), would reply, asking for the
      initiator to provide an IKEv2 cookie.
      (This acts as a sender address validation much like TCP SYN/ACK.
      see section 2.6 of rfc7296)

IPv6 (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 864)
    fe80::3a60:c0ff:ffee:babe.500 > fe80::3a60:77ff:fe38:e647.500: isakmp 2.0
    msgid 00000000: parent_sa ikev2_init[R]
    (cookie: COOKIE)

3) original initiator, seeing a new peer, replies with a new initiation,
    including the cookie as provided.

IPv6 (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 864)
    fe80::3a60:77ff:fe38:e647.500 > fe80::3a60:c0ff:ffee:babe.500: isakmp 2.0
    msgid 00000000: parent_sa ikev2_init[I]:
    (cookie: COOKIE)
    (sa: len=504
        (p: #1 protoid=isakmp transform=4 len=44
            (t: #1 type=encr id=aes (type=keylen value=0080))
            (t: #2 type=integ id=hmac-sha )
            (t: #3 type=prf id=hmac-sha )
            (t: #4 type=dh id=modp2048 ))
            ... see https://goo.gl/IHm6BJ for more details)
    (v2ke: len=256 group=modp2048)
    (nonce: len=16 data=(20989d37a814a64d8ff0...d320e9e3000000104f45706c75746f756e697430))
    (v2vid: len=12 vid=OEababababab)
...

4) then responder replies, and the IKEv2 PARENT SA is alive, and one could do
   all sorts of things, including:
        a) turn on a one-hop prospective ACP to get to the enrollment proxy.
        b) use EAP-TLS as the proxy mechanism.
        c) use something else/new as the proxy mechanism within IKEv2.
        d) recognize the other party, and bring up a real ACP.

The brilliant part is that no observer can tell which of a,b,c,d is really
going on from outside, they just see port-500 and ESP packets, which all
they'd ever see of the ACP anyway.

--
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Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    > Topic for this week was contents of certificate that will be provisioned
    > via EST.
    > (Topics for next two weeks:
    > 1. PROTOCOL STACK              2015-12-10.
    > 2. DISCOVERY MECHANISM         2015-12-17.
    > )

I hope that Toerless or Michael B, can articulate more clearly what is meant
by PROTOCOL STACK, as I have many possible interpretations.

Details to connect:
        https://ietf.webex.com/ietf/j.php?MTID=m09ce76fb7e9ae7af015d3033b42c54c2

meeting number:   649 770 742
Meeting password: bootstrap
1-877-668-4493 Call-in toll free number (US/Canada)
1-650-479-3208 Call-in toll number (US/Canada)

We will use the etherpad at:
   http://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFont=true
   (note typo in boostrapping)

I sent an ical invite to the list which is probably lost in list moderation.
This link might help:
  https://calendar.google.com/calendar/event?action=TEMPLATE&tmeid=MHR0ajRtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&tmsrc=mcharlesr%40gmail.com

It's at 1600UTC.

--
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Toerless Eckert (eckert) <eckert@cisco.com> wrote:
    > Lets assume we replace EST bootstraap with "a guy with a USB stick feeding
    > manually domain certs to greenfield devices".

Yes, I've no problem with that.

    > a) I agree that we would want to make sure our protocols are set up so that even such
    > a device could perfectly bring up ACP afterwards and continue with the rest
    > of autonomic functions (GRASP inside ACP, agents,...).

I don't see a problem here.

    > b) I don't think we would want to call such a device "autonomic". It's partial
    > autonomic at best. But yes, it may be perfectly valid and relevant to some
    > industries.

It's part of the ACP, and it could participate in lots of self-healing
efforts.  So, it's autonomic.   What it isn't is *zero-touch*.

    > If you agree, then the problem is IMHO primarily in the reference model calling
    > out that devices that for one reason or the other can not / want-not implement
    > the whole ANIMA suite can perfectly well implement just parts of it, because
    > ANIMA is defined such that the different building blocks are modular. Just that
    > such a device is only "partial-autonomic" (or  whatever you think is a good
    > naming to distinguish it from a truely autonomic device).

    > Btw: This also goes the other way, eg: it would IHO make sense that the bootstrap
    > spec can be deplpoyed on devices that do not want any further AN functions after
    > the certificates are enrolled. I think that option is also something we want to
    > explain in the bootstrap draft.

Yes.  That's how I view IoT devices (such as in the 6tisch space) --- they
will do much of the bootstrap mechanism, but they won't build an ACP, and
won't run GRASP.

Perhaps, ditto HomeNet devices.


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Toerless Eckert (eckert) <eckert@cisco.com> wrote:

    > a) Lets assume we're talking bout announcements by Bob/Eve to connect to their ACP.

    > Minimally, Alice has no idea whom it wants to connect to. So it simply starts
    > let's say dTLS to Bob and Eve. Alice will then figure out whether Bob and.or
    > Eve have domain certs for the same domain Alice is in. If not, Alice (or Bob/Eve)
    > will drop the dTLS connection.

I don't know why you write *TLS here. There is no specification for running
IPv6 over TLS.

    > b) Lets assume we're talking about announcements by Bob/Eve to be enrollment proxies.

    > So now Alice is not in a domain and will set up ESP "randomnly" to Bob and/or Eve.

I think you mean, EST?

    > If we do not have a MASA, then Alice is really at the mercy of
    > The guy who plugs Alice's cable into some network connection.
    > "Do not plug into an untusty socket".

We can do things without a MASA, but the certificate validation chain is more complex.

    > Aka: Both Bob and Eve belong to friendly domains only accepting devices
    > they know they own.

    > If we do have a MASA, Alice can feel more secure. So it connects to Eve,
    > and Eve 's domain registrar wants to have Alice - even thoug alice doesn't below
    > to Eves domain, but Eve is evil in this case. Alice will only accept enrollment
    > when Eve is producing to Alice a ticket from the MASA stating that Alice belongs
    > to Alices domain. And Alice trusts this ticket because it ultimately came from

Here, where you write "Alices domain", you mean "Eve's domain"

    > I can't see how Bob/Eve announcing their certs here would help Alice at all
    > before establishing the EST connection.

It could help if both Bob and Eve are part of the same domain, and so after a
failure with Bob, Alice would know to go on to Frank, skipping Eve.
But, I agree that it doesn't in general help, because neither Bob nor Eve's
certificate has any verifiable meaning to Alice.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-




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Inline.

On Wed, Dec 09, 2015 at 06:49:37PM -0500, Michael Richardson wrote:
> 
> Toerless Eckert (eckert) <eckert@cisco.com> wrote:
> 
>     > a) Lets assume we're talking bout announcements by Bob/Eve to connect to their ACP.
> 
>     > Minimally, Alice has no idea whom it wants to connect to. So it simply starts
>     > let's say dTLS to Bob and Eve. Alice will then figure out whether Bob and.or
>     > Eve have domain certs for the same domain Alice is in. If not, Alice (or Bob/Eve)
>     > will drop the dTLS connection.
> 
> I don't know why you write *TLS here. There is no specification for running
> IPv6 over TLS.

This is in the realm of ACP spec to resolve i think. Let me just remove this discussion
from this thread here by saying we firsst set up a TLS connection for GRASP, then
GRASP negotiates the secure transport for ACP packets, eg: MTI is IPsec. (I prefer
dTLS for ACP packets because of code size, but that's yet another derailing discussion).

It is now the TLS security exchange that will make Alice trust Bob/Eve and vice versa. Or
not, in which case the connection would be dropped. 

And, oh, by the way. Here is more generically how i think of "optional" parameters
for the discovery:

There are things that would make the TLS connection setup fail. Alice vs. Bob/Eve
could be in different domains. Or Bob/Eve certificate might have changed, or
Bob/Eve had a broken clock backup battery and thinks its 1990. Or there was an
internal redundancy failover that was not completely stateful, so Bob/Eve would like
connections rebuilt. If any of this gets fixed/changed, Bob/Eve would hope that Alice
will try to reconnect periodically after it failed.

Now, if Bob/Eve want to be friendly, they could
try to figure out if any relevant elements for the successfull mutual TLS set have
changed (such as above), and if they have changed, they will signal in their discovery that
there was change. In Multicast PIM we call this parameter of discovery (Hello) a GenID. 
There it was pec'ed only for internal redundancy failover or reboot, but IMHO its a more
generally applicable concept.  It's just a number thats changed. Eg: Timestamp of 
relevant last change.

In result, Alice would not need to periodically try to reconnect, but only when there is a 
GenID change. And of course we would need to specify a minimum interval for reconnection 
attempts in case Bob/Eve are evil and continuosly change change GenID. Maybe Alice wants 
to even do backoff in case a candidate neighbor connection fails, its GenID changes,
connection attempt still fails. And maybe still do a periodic re-connection attempt
after a longer period even if GenID has not changed.

Instead of letting the sending node figure out itself all the possible changes
it has had into a single GenID, it could also explicitly announce those parameter
values, like explicitly announcing domain name into discovery. But the goal would just
be to further optimize the non-need for another TLS connection attempt by Alice. SO
we can discuss if thats worth it.

In summary: I think what we put as parameters into the discovery only serves to
manage how to do re-connects of the following (TLS) security association. 

>     > b) Lets assume we're talking about announcements by Bob/Eve to be enrollment proxies.
> 
>     > So now Alice is not in a domain and will set up ESP "randomnly" to Bob and/or Eve.
> 
> I think you mean, EST?

ETYPO. Thanks.

>     > If we do not have a MASA, then Alice is really at the mercy of
>     > The guy who plugs Alice's cable into some network connection.
>     > "Do not plug into an untusty socket".
> 
> We can do things without a MASA, but the certificate validation chain is more complex.

Well, lets not call it MASA for a second but let me just generalize the two
conditions:

Alice was sold to some owner X. IN general, it can not have a trust point for
an arbitrary owner X. Instead it can only have trust-points for eg: its manufacturer
and whatever trusted third-parties the manufacturer burned trustpoints into Alice's firmware.

In the "insecure" case, the manufacturer and its trusted third-parties are too lazy to
set up any backend functions to make Alice confident that it belongs to X (which in
Max'es definition really is "Alice feels confident that its manufacturer or one of
its trusted henchmen will remember that Bob/Eves domain claims to own Alice). In the
"secure" case, they do this. These backend functions could be a MASA or maybe something
else. But i thought the way Max has defined MASA it should be a good superset of
any possible ways to give Alice this confidence. Not sure though. Hopefully Max will
chime in.

>     > Aka: Both Bob and Eve belong to friendly domains only accepting devices
>     > they know they own.
> 
>     > If we do have a MASA, Alice can feel more secure. So it connects to Eve,
>     > and Eve 's domain registrar wants to have Alice - even thoug alice doesn't below
>     > to Eves domain, but Eve is evil in this case. Alice will only accept enrollment
>     > when Eve is producing to Alice a ticket from the MASA stating that Alice belongs
>     > to Alices domain. And Alice trusts this ticket because it ultimately came from
> 
> Here, where you write "Alices domain", you mean "Eve's domain"

Right.

>     > I can't see how Bob/Eve announcing their certs here would help Alice at all
>     > before establishing the EST connection.
> 
> It could help if both Bob and Eve are part of the same domain, and so after a
> failure with Bob, Alice would know to go on to Frank, skipping Eve.

There are probably like for ACP also for bootstrap reasons for it to fail via Bob
that would not apply to Eve even if Bob/Eve are in the same domain.

> But, I agree that it doesn't in general help, because neither Bob nor Eve's
> certificate has any verifiable meaning to Alice.

Right.

Cheers
    Toerless

> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>  -= IPv6 IoT consulting =-
> 
> 
> 



> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap


-- 
---
Toerless Eckert, eckert@cisco.com


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On Wed, Dec 09, 2015 at 04:07:44PM -0500, Michael Richardson wrote:
> 
> Toerless Eckert (eckert) <eckert@cisco.com> wrote:
>     > Lets assume we replace EST bootstraap with "a guy with a USB stick feeding
>     > manually domain certs to greenfield devices".
> 
> Yes, I've no problem with that.
> 
>     > a) I agree that we would want to make sure our protocols are set up so that even such
>     > a device could perfectly bring up ACP afterwards and continue with the rest
>     > of autonomic functions (GRASP inside ACP, agents,...).
> 
> I don't see a problem here.

Well, i was arguing that for optimization we could have a single GRASP discovery
message to indicate bot ACP-service (oops: objective ;-) (aka: you can build ACP to me)
as well as bootstrap-proxy objective. If your partial-AN device only does one
of those two things then the device would of course only announce the objective it
does support. So yes, even with optimization i don't see an issue, but it's worthwhile
to remember the "partial device" aspect and continue to vet the design against it.

>     > b) I don't think we would want to call such a device "autonomic". It's partial
>     > autonomic at best. But yes, it may be perfectly valid and relevant to some
>     > industries.
> 
> It's part of the ACP, and it could participate in lots of self-healing
> efforts.  So, it's autonomic.   What it isn't is *zero-touch*.

Haha... Ok. I like these naming discussions more than i should:

I think "zero-touch" is a required part of day-0 autonomic behavior. Agreeably,
unless we have routers that double as drones/robots, and physcially self-connect
to the network (into the right place, by cable), the bootstrap itself is necessary
but may considered not to be sufficient enough so the device can be called day 0 autonomic.

I thought we call humans autonomic/autonomous, do we ? Down to which age ? 
I should stop here ;-)

>     > Btw: This also goes the other way, eg: it would IHO make sense that the bootstrap
>     > spec can be deplpoyed on devices that do not want any further AN functions after
>     > the certificates are enrolled. I think that option is also something we want to
>     > explain in the bootstrap draft.
> 
> Yes.  That's how I view IoT devices (such as in the 6tisch space) --- they
> will do much of the bootstrap mechanism, but they won't build an ACP, and
> won't run GRASP.

Haven't had enough engaement to have a founded opinion.
> 
> Perhaps, ditto HomeNet devices.

Yes, good example. 

Cheers
    Toerless
> 
> 
> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>  -= IPv6 IoT consulting =-
> 
> 
> 



> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
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-- 
---
Toerless Eckert, eckert@cisco.com


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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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On Wed, Dec 09, 2015 at 03:19:40PM -0500, Michael Richardson wrote:
> Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
>     > I *really* don't see how the first step can be anything other than a
>     > recognizable unencrypted multicast probe, whether it is sent by the joiner or
>     > by some node that is already trusted. You could require that the unencrypted
>     > probe includes a public key so that a unicast response can be encrypted; but
>     > neither end is authenticated at that stage.
> 
> Yes, that's true.
> The point isn't that it's other than unencrypted multicast probe.
> 
> The point is that if this unencrypted multicast probe is a normal part of ACP
> operation, then it is not obvious to (passive!) malicious observers which
> device is actually bootstraping vs helping.

If we do not distinguish bootstrap vs ACP in the discovery messages we may
also make the behavior of partial-autonomic devices that only care about one of
those things more obfuscated. Aka: I should be prepared to get eg: EST connection
attempts all the time even though i don't do it, or ACP connection attempts
even though i don't do that. 

I don't think we buy useful security by obfuscating what objectives we offer.

Cheers
   Toerless


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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>
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On Tue, Dec 08, 2015 at 05:37:47PM -0500, Michael Richardson wrote:
>     > Are you agreeing with Toerless??? argument that the new device should be
>     > a responder?
> 
> No. I'm saying that a new device should do as little as possible to call
> attention to itself, and should prefer to do things that all other devices
> are already doing.

My argument why it should rather do as little as possible (nothing) to call
attention to itself (which i think is different to what you're saying) is that
the attacker can also observe waht everybody else is doing and attack everybody
else. Only that everybody else will likely have stronger defenses having been already
enrolled and hopefully gotten software upgrades and hardening through intent/config/whatever.

But, this is just an optimization proposal from my side. No strong opinions.
Would just like to hear why it may not be a worthwhile enough optimization if you think it ain't.

Cheers
    Toerless

>     > Or, are you arguing that the new device should initiate the
>     > bootstrapping; but do so in a way that does not expose it is a new
>     > device?
> 
> For non-challenged (IoT) devices on non-challenged networks, the new device should
> initiate and drive the bootstrapping.
> 
> It would be best if this communication was indistinguishable from other ACP
> communication to an outsider.
> 
> 
> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>  -= IPv6 IoT consulting =-
> 
> 
> 



-- 
---
Toerless Eckert, eckert@cisco.com


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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: "Max Pritikin (pritikin)" <pritikin@cisco.com>, "Jason Coleman (colemaj)" <colemaj@cisco.com>, "mcr+ietf@sandelman.ca" <mcr+ietf@sandelman.ca>, "ietf@sandeep.de" <ietf@sandeep.de>, "Michael Behringer (mbehring)" <mbehring@cisco.com>, "alper.yegin@yegin.org" <alper.yegin@yegin.org>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, "leo.liubing@huawei.com" <leo.liubing@huawei.com>, "brian.e.carpenter@gmail.com" <brian.e.carpenter@gmail.com>, "kwatsen@juniper.net" <kwatsen@juniper.net>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Thread-Topic: Weekly Webex invite for anima bootstrap team meeting
Thread-Index: AdCq3XIOlfGppXwlS+iXiAzrSXhA3g==
Date: Wed, 16 Dec 2015 09:04:28 +0000
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Subject: [Anima-bootstrap] Canceled: Weekly Webex invite for anima bootstrap team meeting
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Deleting this old series.

So Wednesday 7 AM PST seems to be the best slot - it fits everybody except =
Brian and myself, and I think I can get the other meeting moved. Michael Ri=
chardson also mentioned that we may be on/off 1 hour due to daylight saving=
 times, so let me shoot the meeting invite out here with outlook and webex,=
 and see if this still works for everybody else.

Cheers
Toerless


-- Do not delete or change any of the following text. --


Join WebEx meeting<https://cisco.webex.com/ciscosales/j.php?MTID=3Dma5a7178=
d02a2edcb0c6d7b43e5315f08>
Meeting number: 200 557 721
Meeting password: boot


If you are the host, you can use the meeting host key to pass the host priv=
ilege to another participant or to start the meeting from a video conferenc=
ing system or application. To find the host key for this meeting, go here.<=
https://cisco.webex.com/ciscosales/j.php?MTID=3Dm0ab0c7d2c43095ce03ec01239f=
d109bf>

Join by phone
+1-866-432-9903 Call-in toll-free number (US/Canada)
+1-408-525-6800 Call-in toll number (US/Canada)
Access code: 200 557 721
Global call-in numbers<https://cisco.webex.com/ciscosales/globalcallin.php?=
serviceType=3DMC&ED=3D317186532&tollFree=3D1> | Toll-free calling restricti=
ons<http://www.webex.com/pdf/tollfree_restrictions.pdf>


Can't join the meeting? Contact support.<https://cisco.webex.com/ciscosales=
/mc>

IMPORTANT NOTICE: Please note that this WebEx service allows audio and othe=
r information sent during the session to be recorded, which may be discover=
able in a legal matter. By joining this session, you automatically consent =
to such recordings. If you do not consent to being recorded, discuss your c=
oncerns with the host or do not join the session..

--_000_b9e905257fac4b6e832ba85c6cbd7c3dXCHRCD003ciscocom_
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Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Deleting this old series.</div>
<div><br>
</div>
<div>So Wednesday 7 AM PST seems to be the best slot &#8211; it fits everyb=
ody except Brian and myself, and I think I can get the other meeting moved.=
 Michael Richardson also mentioned that we may be on/off 1 hour due to dayl=
ight saving times, so let me shoot the
 meeting invite out here with outlook and webex, and see if this still work=
s for everybody else.</div>
<div><br>
</div>
<div>Cheers</div>
<div>Toerless</div>
<font face=3D"ARIAL"><br>
<br>
</font><font size=3D"1" face=3D"ARIAL"><font size=3D"2" color=3D"#666666" f=
ace=3D"ARIAL">-<a name=3D"MacBeginWBXTag"></a>- Do not delete or change any=
 of the following text. --</font><br>
<br>
<br>
<font size=3D"4" face=3D"ARIAL"><a href=3D"https://cisco.webex.com/ciscosal=
es/j.php?MTID=3Dma5a7178d02a2edcb0c6d7b43e5315f08"><font size=3D"3" color=
=3D"#00AFF9" face=3D"ARIAL">Join WebEx meeting</font></a><br>
<font size=3D"2" color=3D"#666666" face=3D"ARIAL">Meeting number: 200 557 7=
21</font> <br>
<font size=3D"2" color=3D"#666666" face=3D"arial">Meeting password:</font> =
<font size=3D"2" color=3D"#666666" face=3D"arial">
boot</font> <br>
</font><br>
<br>
<font size=3D"2" color=3D"#666666" face=3D"arial">If you are the host, you =
can use the meeting host key to pass the host privilege to another particip=
ant or to start the meeting from a video conferencing system or application=
. To find the host key for this meeting,
</font><a href=3D"https://cisco.webex.com/ciscosales/j.php?MTID=3Dm0ab0c7d2=
c43095ce03ec01239fd109bf"><font size=3D"2" color=3D"#00AFF9" face=3D"Arial"=
>go here.</font></a><br>
<br>
<font size=3D"4" face=3D"ARIAL"><font size=3D"3" color=3D"#666666" face=3D"=
arial">Join by phone</font><br>
<font size=3D"2" color=3D"#666666" face=3D"arial"><strong>&#43;1-866-432-99=
03</strong> Call-in toll-free number (US/Canada)</font><br>
<font size=3D"2" color=3D"#666666" face=3D"arial"><strong>&#43;1-408-525-68=
00</strong> Call-in toll number (US/Canada)</font><br>
<font size=3D"2" color=3D"#666666" face=3D"arial">Access code: 200 557 721<=
/font> <br>
<a href=3D"https://cisco.webex.com/ciscosales/globalcallin.php?serviceType=
=3DMC&amp;ED=3D317186532&amp;tollFree=3D1"><font size=3D"1" color=3D"#00AFF=
9" face=3D"arial">Global call-in numbers</font></a><font size=3D"1" face=3D=
"ARIAL"> |
</font><a href=3D"http://www.webex.com/pdf/tollfree_restrictions.pdf"><font=
 size=3D"1" color=3D"#00AFF9" face=3D"arial">Toll-free calling restrictions=
</font></a><br>
</font><br>
<br>
<font size=3D"1" color=3D"#666666" face=3D"arial">Can't join the meeting?</=
font> <a href=3D"https://cisco.webex.com/ciscosales/mc">
<font size=3D"1" color=3D"#00AFF9" face=3D"Arial">Contact support.</font></=
a> <br>
<br>
<font color=3D"#A0A0A0" size=3D"1" face=3D"arial">IMPORTANT NOTICE: Please =
note that this WebEx service allows audio and other information sent during=
 the session to be recorded, which may be discoverable in a legal matter. B=
y joining this session, you automatically
 consent to such recordings. If you do not consent to being recorded, discu=
ss your concerns with the host or do not join the session..<a name=3D"MacEn=
dWBXTag"></a></font></font>
</body>
</html>

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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: "Max Pritikin (pritikin)" <pritikin@cisco.com>, "Jason Coleman (colemaj)" <colemaj@cisco.com>, "mcr+ietf@sandelman.ca" <mcr+ietf@sandelman.ca>, "ietf@sandeep.de" <ietf@sandeep.de>, "Michael Behringer (mbehring)" <mbehring@cisco.com>, "alper.yegin@yegin.org" <alper.yegin@yegin.org>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, "leo.liubing@huawei.com" <leo.liubing@huawei.com>, "brian.e.carpenter@gmail.com" <brian.e.carpenter@gmail.com>, "kwatsen@juniper.net" <kwatsen@juniper.net>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Thread-Topic: Weekly Webex invite for anima bootstrap team meeting
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Date: Wed, 16 Dec 2015 09:11:50 +0000
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Subject: [Anima-bootstrap] Weekly Webex invite for anima bootstrap team meeting
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--_000_71e4d7dd93594580843368a1c9bb9b93XCHRCD003ciscocom_
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Outlook invite for new series with IETF Webex set up by Michael Richardson.


Time:
  Weekly, Thursday, 1600UTC.


Etherpad:
   http://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFon=
t=3Dtrue
   (note typo in boostrapping)


iCal:
  https://calendar.google.com/calendar/event?action=3DTEMPLATE&tmeid=3DMHR0=
ajRtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&tmsr=
c=3Dmcharlesr%40gmail.com




Webex set up by Michael Richardson <mcr+IETF@sandelman.ca>:

Dialin:
  https://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c=
2

  meeting number:   649 770 742
  Meeting password: bootstrap
  1-877-668-4493 Call-in toll free number (US/Canada)
  1-650-479-3208 Call-in toll number (US/Canada)


--_000_71e4d7dd93594580843368a1c9bb9b93XCHRCD003ciscocom_
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Outlook invite for new series with IETF Webex set up by Michael Richar=
dson.</div>
<div><br>
</div>
<div>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Time=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Week=
ly, Thursday, 1600UTC.</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Ethe=
rpad:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFont=3Dtru=
e</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">(not=
e typo in boostrapping)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">iCal=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://calendar.google.com/calendar/event?action=3DTEMPLATE&amp;tmeid=3DMHR0aj=
RtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&amp;tm=
src=3Dmcharlesr%40gmail.com</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Webe=
x set up by Michael Richardson
<mcr+IETF@sandelman.ca>:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Dial=
in:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c2</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">meet=
ing number: 649 770 742</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Meet=
ing password: bootstrap</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-87=
7-668-4493 Call-in toll free number (US/Canada)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-65=
0-479-3208 Call-in toll number (US/Canada)</p>
</div>
<div><br>
</div>
</body>
</html>

--_000_71e4d7dd93594580843368a1c9bb9b93XCHRCD003ciscocom_
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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: "Max Pritikin (pritikin)" <pritikin@cisco.com>, "Jason Coleman (colemaj)" <colemaj@cisco.com>, "mcr+ietf@sandelman.ca" <mcr+ietf@sandelman.ca>, "ietf@sandeep.de" <ietf@sandeep.de>, "Michael Behringer (mbehring)" <mbehring@cisco.com>, "alper.yegin@yegin.org" <alper.yegin@yegin.org>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, "leo.liubing@huawei.com" <leo.liubing@huawei.com>, "brian.e.carpenter@gmail.com" <brian.e.carpenter@gmail.com>, "kwatsen@juniper.net" <kwatsen@juniper.net>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Thread-Topic: Weekly Webex invite for anima bootstrap team meeting
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Date: Wed, 16 Dec 2015 09:13:26 +0000
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Subject: [Anima-bootstrap] Weekly Webex invite for anima bootstrap team meeting
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Outlook invite for new series with IETF Webex set up by Michael Richardson.


Time:
  Weekly, Thursday, 1600UTC.


Etherpad:
   http://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFon=
t=3Dtrue
   (note typo in boostrapping)


iCal:
  https://calendar.google.com/calendar/event?action=3DTEMPLATE&tmeid=3DMHR0=
ajRtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&tmsr=
c=3Dmcharlesr%40gmail.com




Webex set up by Michael Richardson <mcr+IETF@sandelman.ca>:

Dialin:
  https://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c=
2

  meeting number:   649 770 742
  Meeting password: bootstrap
  1-877-668-4493 Call-in toll free number (US/Canada)
  1-650-479-3208 Call-in toll number (US/Canada)


--_000_f97cba362b6249ca939dc9eefddf6aecXCHRCD003ciscocom_
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Outlook invite for new series with IETF Webex set up by Michael Richar=
dson.</div>
<div><br>
</div>
<div>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Time=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Week=
ly, Thursday, 1600UTC.</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Ethe=
rpad:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFont=3Dtru=
e</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">(not=
e typo in boostrapping)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">iCal=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://calendar.google.com/calendar/event?action=3DTEMPLATE&amp;tmeid=3DMHR0aj=
RtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&amp;tm=
src=3Dmcharlesr%40gmail.com</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Webe=
x set up by Michael Richardson
<mcr+IETF@sandelman.ca>:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Dial=
in:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c2</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">meet=
ing number: 649 770 742</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Meet=
ing password: bootstrap</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-87=
7-668-4493 Call-in toll free number (US/Canada)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-65=
0-479-3208 Call-in toll number (US/Canada)</p>
</div>
<div><br>
</div>
</body>
</html>

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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
To: "Max Pritikin (pritikin)" <pritikin@cisco.com>, "Jason Coleman (colemaj)" <colemaj@cisco.com>, "mcr+ietf@sandelman.ca" <mcr+ietf@sandelman.ca>, "ietf@sandeep.de" <ietf@sandeep.de>, "Michael Behringer (mbehring)" <mbehring@cisco.com>, "alper.yegin@yegin.org" <alper.yegin@yegin.org>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, "leo.liubing@huawei.com" <leo.liubing@huawei.com>, "brian.e.carpenter@gmail.com" <brian.e.carpenter@gmail.com>, "kwatsen@juniper.net" <kwatsen@juniper.net>, "anima-bootstrap@ietf.org" <anima-bootstrap@ietf.org>
Thread-Topic: Weekly Webex invite for anima bootstrap team meeting
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Date: Wed, 16 Dec 2015 09:23:44 +0000
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Subject: [Anima-bootstrap] Weekly Webex invite for anima bootstrap team meeting
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--_000_8238f61757244baab368c036b2033cebXCHRCD003ciscocom_
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Content-Transfer-Encoding: quoted-printable

Added URL for non-US dialin numbers to the webex.
Outlook invite for new series with IETF Webex set up by Michael Richardson.


Time:
  Weekly, Thursday, 1600UTC.


Etherpad:
   http://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFon=
t=3Dtrue
   (note typo in boostrapping)


iCal:
  https://calendar.google.com/calendar/event?action=3DTEMPLATE&tmeid=3DMHR0=
ajRtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&tmsr=
c=3Dmcharlesr%40gmail.com




Webex set up by Michael Richardson <mcr+IETF@sandelman.ca>:

Dialin:
  https://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c=
2

  meeting number:   649 770 742
  Meeting password: bootstrap
  1-877-668-4493 Call-in toll free number (US/Canada)
  1-650-479-3208 Call-in toll number (US/Canada)
  More global dialin numbers:
  https://ietf.webex.com/ietf/globalcallin.php


--_000_8238f61757244baab368c036b2033cebXCHRCD003ciscocom_
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif;">
<div>Added URL for non-US dialin numbers to the webex.</div>
<div>Outlook invite for new series with IETF Webex set up by Michael Richar=
dson.</div>
<div><br>
</div>
<div>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Time=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Week=
ly, Thursday, 1600UTC.</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Ethe=
rpad:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
://etherpad.tools.ietf.org:9000/p/anima-boostrapping?useMonospaceFont=3Dtru=
e</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">(not=
e typo in boostrapping)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">iCal=
:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://calendar.google.com/calendar/event?action=3DTEMPLATE&amp;tmeid=3DMHR0aj=
RtbDM2MnU1NmU2YW9ocWtrNGY2ZG9fMjAxNTEyMTBUMTYwMDAwWiBtY2hhcmxlc3JAbQ&amp;tm=
src=3Dmcharlesr%40gmail.com</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
<br>
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Webe=
x set up by Michael Richardson
<mcr+IETF@sandelman.ca>:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Dial=
in:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://ietf.webex.com/ietf/j.php?MTID=3Dm09ce76fb7e9ae7af015d3033b42c54c2</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New'; min-h=
eight: 23px;">
</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">meet=
ing number: 649 770 742</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">Meet=
ing password: bootstrap</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-87=
7-668-4493 Call-in toll free number (US/Canada)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">1-65=
0-479-3208 Call-in toll number (US/Canada)</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">More=
 global dialin numbers:</p>
<p style=3D"margin: 0px; font-size: 20px; font-family: 'Courier New';">http=
s://ietf.webex.com/ietf/globalcallin.php</p>
</div>
<div><br>
</div>
</body>
</html>

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--_000_8238f61757244baab368c036b2033cebXCHRCD003ciscocom_--


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Date: Wed, 16 Dec 2015 01:25:05 -0800
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Subject: [Anima-bootstrap] [anima-bootstrap] Recurring meeting
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Updated ANIMA bootstrap wiki and sent out outlook invite for new regular anima-bootstrap
weekly meeting time. See

https://trac.tools.ietf.org/wg/anima/trac/wiki/Bootstrap


From nobody Wed Dec 16 06:20:03 2015
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Subject: Re: [Anima-bootstrap] Canceled: Weekly Webex invite for anima bootstrap team meeting
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Toerless Eckert (eckert) <eckert@cisco.com> wrote:
    > So Wednesday 7 AM PST seems to be the best slot =E2=80=93 it fits eve=
rybody
    > except Brian and myself, and I think I can get the other meeting
    > moved. Michael Richardson also mentioned that we may be on/off 1 hour
    > due to daylight saving times, so let me shoot the meeting invite out
    > here with outlook and webex, and see if this still works for everybody
    > else.

huh? I thought we had concluded on Thursday at 11am already.

--
]               Never tell me the odds!                 | ipv6 mesh network=
s [
]   Michael Richardson, Sandelman Software Works        | network architect=
  [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails  =
  [


From nobody Wed Dec 16 06:40:32 2015
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From: "Toerless Eckert (eckert)" <eckert@cisco.com>
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Subject: Re: [Anima-bootstrap] Canceled: Weekly Webex invite for anima bootstrap team meeting
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Old email popping up  ? I just sent out outlook, wiki update for the thursday slot.

On Wed, Dec 16, 2015 at 09:19:56AM -0500, Michael Richardson wrote:
> 
> Toerless Eckert (eckert) <eckert@cisco.com> wrote:
>     > So Wednesday 7 AM PST seems to be the best slot ??? it fits everybody
>     > except Brian and myself, and I think I can get the other meeting
>     > moved. Michael Richardson also mentioned that we may be on/off 1 hour
>     > due to daylight saving times, so let me shoot the meeting invite out
>     > here with outlook and webex, and see if this still works for everybody
>     > else.
> 
> huh? I thought we had concluded on Thursday at 11am already.
> 
> --
> ]               Never tell me the odds!                 | ipv6 mesh networks [
> ]   Michael Richardson, Sandelman Software Works        | network architect  [
> ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
> 

-- 
---
Toerless Eckert, eckert@cisco.com


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From: "Michael Behringer (mbehring)" <mbehring@cisco.com>
To: "Toerless Eckert (eckert)" <eckert@cisco.com>
Thread-Topic: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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> -----Original Message-----
> From: Toerless Eckert (eckert)
> Sent: 09 December 2015 14:22
> To: Michael Behringer (mbehring) <mbehring@cisco.com>
> Cc: consultancy@vanderstok.org; Brian E Carpenter
> <brian.e.carpenter@gmail.com>; anima-bootstrap@ietf.org
> Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery
> options
>=20
>=20
> Michael:
>=20
> Lets assume we replace EST bootstraap with "a guy with a USB stick feedin=
g
> manually domain certs to greenfield devices".
>=20
> a) I agree that we would want to make sure our protocols are set up so th=
at
> even such
>    a device could perfectly bring up ACP afterwards and continue with the=
 rest
>    of autonomic functions (GRASP inside ACP, agents,...).

We agree.=20
=20
> b) I don't think we would want to call such a device "autonomic". It's pa=
rtial
>    autonomic at best. But yes, it may be perfectly valid and relevant to =
some
>    industries.

I don't care what we call it. "fully autonomic" won't happen for a long tim=
e anyway.

But aside of the naming, I really think the key value of AN is way beyond b=
ootstrap. Not today, but in the future. So frankly, if someone wants to use=
 another method to bootstrap, I really don't care.=20

> If you agree, then the problem is IMHO primarily in the reference model
> calling out that devices that for one reason or the other can not / want-=
not
> implement the whole ANIMA suite can perfectly well implement just parts o=
f
> it, because ANIMA is defined such that the different building blocks are
> modular. Just that such a device is only "partial-autonomic" (or  whateve=
r you
> think is a good naming to distinguish it from a truely autonomic device).

Yup. we can do that.=20

> Btw: This also goes the other way, eg: it would IHO make sense that the
> bootstrap spec can be deplpoyed on devices that do not want any further A=
N
> functions after the certificates are enrolled. I think that option is als=
o
> something we want to explain in the bootstrap draft.

True. And we do already have customers that are JUST interested in the boot=
strap, Sprint was one case. Remember, they wanted to disable AN after boots=
trap!!=20

All I'm saying, let's be practical, not religious. :-)=20

Michael

> Cheers
>     Toerless
>=20
> On Wed, Dec 09, 2015 at 01:08:39PM +0000, Michael Behringer (mbehring)
> wrote:
> > > The discovery alternatives cited by toerless impress me as a list of
> > > services of which at least one must be present.
> > >
> > > Therefore my consideration that for something as basic as Service
> > > discovery, some industries may regret that they need for example
> > > mDNS next to their favoured discovery service e.g. Resource Directory=
.
> > > Faced with this choice they may decide that mDNS is not wanted but
> > > replaced by RD; and the Anima code in their products is adapted for
> > > that choice; while maintaining interoperability with ANIMA routers
> > > in all other respects.
> >
> > At the end of the day I personally don't care *how* a domain certificat=
e
> gets onto a new device.
> >
> > Probably we should be more clear on this, draw a big line, and state th=
at
> the domain enrolment process may be replaced by many other methods,
> and that's ok.
> >
> > So for us here that means, AN must also work if the domain certificates=
 are
> (for whatever reason) already on the devices. I.e., what happens later in=
 the
> AN process must not depend on anything in the bootstrap process, except
> the PKI info.
> >
> > Michael
> >
> > > Peter
> > >
> > > _______________________________________________
> > > Anima-bootstrap mailing list
> > > Anima-bootstrap@ietf.org
> > > https://www.ietf.org/mailman/listinfo/anima-bootstrap


From nobody Thu Dec 17 23:10:51 2015
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Date: Fri, 18 Dec 2015 08:10:45 +0100
From: peter van der Stok <stokcons@xs4all.nl>
To: "Michael Behringer (mbehring)" <mbehring@cisco.com>
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Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy discovery options
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Hi all,

+1 for me.
I like the direction of this discussion given my background.

Peter

Michael Behringer (mbehring) schreef op 2015-12-17 23:26:
>> -----Original Message-----
>> From: Toerless Eckert (eckert)
>> Sent: 09 December 2015 14:22
>> To: Michael Behringer (mbehring) <mbehring@cisco.com>
>> Cc: consultancy@vanderstok.org; Brian E Carpenter
>> <brian.e.carpenter@gmail.com>; anima-bootstrap@ietf.org
>> Subject: Re: [Anima-bootstrap] anima-bootstrap: Bootstrap proxy 
>> discovery
>> options
>> 
>> 
>> Michael:
>> 
>> Lets assume we replace EST bootstraap with "a guy with a USB stick 
>> feeding
>> manually domain certs to greenfield devices".
>> 
>> a) I agree that we would want to make sure our protocols are set up so 
>> that
>> even such
>>    a device could perfectly bring up ACP afterwards and continue with 
>> the rest
>>    of autonomic functions (GRASP inside ACP, agents,...).
> 
> We agree.
> 
>> b) I don't think we would want to call such a device "autonomic". It's 
>> partial
>>    autonomic at best. But yes, it may be perfectly valid and relevant 
>> to some
>>    industries.
> 
> I don't care what we call it. "fully autonomic" won't happen for a
> long time anyway.
> 
> But aside of the naming, I really think the key value of AN is way
> beyond bootstrap. Not today, but in the future. So frankly, if someone
> wants to use another method to bootstrap, I really don't care.
> 
>> If you agree, then the problem is IMHO primarily in the reference 
>> model
>> calling out that devices that for one reason or the other can not / 
>> want-not
>> implement the whole ANIMA suite can perfectly well implement just 
>> parts of
>> it, because ANIMA is defined such that the different building blocks 
>> are
>> modular. Just that such a device is only "partial-autonomic" (or  
>> whatever you
>> think is a good naming to distinguish it from a truely autonomic 
>> device).
> 
> Yup. we can do that.
> 
>> Btw: This also goes the other way, eg: it would IHO make sense that 
>> the
>> bootstrap spec can be deplpoyed on devices that do not want any 
>> further AN
>> functions after the certificates are enrolled. I think that option is 
>> also
>> something we want to explain in the bootstrap draft.
> 
> True. And we do already have customers that are JUST interested in the
> bootstrap, Sprint was one case. Remember, they wanted to disable AN
> after bootstrap!!
> 
> All I'm saying, let's be practical, not religious. :-)
> 
> Michael
> 
>> Cheers
>>     Toerless
>> 
>> On Wed, Dec 09, 2015 at 01:08:39PM +0000, Michael Behringer (mbehring)
>> wrote:
>> > > The discovery alternatives cited by toerless impress me as a list of
>> > > services of which at least one must be present.
>> > >
>> > > Therefore my consideration that for something as basic as Service
>> > > discovery, some industries may regret that they need for example
>> > > mDNS next to their favoured discovery service e.g. Resource Directory.
>> > > Faced with this choice they may decide that mDNS is not wanted but
>> > > replaced by RD; and the Anima code in their products is adapted for
>> > > that choice; while maintaining interoperability with ANIMA routers
>> > > in all other respects.
>> >
>> > At the end of the day I personally don't care *how* a domain certificate
>> gets onto a new device.
>> >
>> > Probably we should be more clear on this, draw a big line, and state that
>> the domain enrolment process may be replaced by many other methods,
>> and that's ok.
>> >
>> > So for us here that means, AN must also work if the domain certificates are
>> (for whatever reason) already on the devices. I.e., what happens later 
>> in the
>> AN process must not depend on anything in the bootstrap process, 
>> except
>> the PKI info.
>> >
>> > Michael
>> >
>> > > Peter
>> > >
>> > > _______________________________________________
>> > > Anima-bootstrap mailing list
>> > > Anima-bootstrap@ietf.org
>> > > https://www.ietf.org/mailman/listinfo/anima-bootstrap
> 
> _______________________________________________
> Anima-bootstrap mailing list
> Anima-bootstrap@ietf.org
> https://www.ietf.org/mailman/listinfo/anima-bootstrap

