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From: Miika Komu <miika.komu@hiit.fi>
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Subject: [Hipsec] [Fwd: hipl release 1.0.4]
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FYI,

-------- Original Message --------
Subject: hipl release 1.0.4
Date: Mon, 05 Jan 2009 18:02:49 +0200
From: Miika Komu <miika.komu@hiit.fi>
Reply-To: miika.komu@hiit.fi
To: hipl-users@freelists.org, hipl-announce@freelists.org

Hi folks,

we have published HIP for Linux (HIPL) release 1.0.4 in the URL below:

http://infrahip.hiit.fi/hipl/release/1.0.4/

The release includes binaries for Ubuntu, Fedora, CentOS and Maemo for
Nokia Tablets. The binaries (and updates) can also be downloaded using
apt and yum in few steps using the instructions below:

http://infrahip.hiit.fi/index.php?index=download

The release includes many improvements including a number of bug fixes
and better support for infrastructure (DNS, Bamboo DHT, rendezvous).
Please refer to release notes for further details. The main theme in the
following release (1.0.5) is on fault-tolerant mobility management.

Suggestions for improvements and bugs can be reported at:

http://www.freelists.org/list/hipl-users


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From hipsec-bounces@ietf.org  Mon Jan 19 15:14:55 2009
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Date: Tue, 20 Jan 2009 01:14:25 +0200 (EET)
From: Oleg Ponomarev <oleg.ponomarev@hiit.fi>
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Subject: [Hipsec] HIT to IP in DNS
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Hi!

I just submitted an initial version of a draft[1] to specify one of the 
methods used in HIPL[2] to do the HIT->current IP addresses resolution. 
This is needed to run legacy applications.

Briefly: query A/AAAA 8.7.6.5.4.3.2.1.0.f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.1. 
0.0.1.0.0.2.hit-to-ip.example.net. and allow their changes from the 
corresponding HIT.

Your comments are appreciated as usual.

[1] http://tools.ietf.org/html/draft-ponomarev-hip-hit2ip-00
[2] http://hipl.hiit.fi/
-- 
Regards, Oleg.
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From hipsec-bounces@ietf.org  Wed Jan 21 08:16:35 2009
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Subject: Re: [Hipsec] HIT to IP in DNS
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Errors-To: hipsec-bounces@ietf.org Hi Oleg,
A few comments below.

> -----Original Message-----
> From: Oleg Ponomarev [mailto:oleg.ponomarev@hiit.fi] 
> Sent: Monday, January 19, 2009 3:14 PM
> To: hipsec@ietf.org
> Subject: [Hipsec] HIT to IP in DNS
> 
> Hi!
> 
> I just submitted an initial version of a draft[1] to specify 
> one of the 
> methods used in HIPL[2] to do the HIT->current IP addresses 
> resolution. 
> This is needed to run legacy applications.

I disagree that this is strictly needed to run legacy applications.
Perhaps "may be useful" instead of "needed"?

> 
> Briefly: query A/AAAA 
> 8.7.6.5.4.3.2.1.0.f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.1. 
> 0.0.1.0.0.2.hit-to-ip.example.net. and allow their changes from the 
> corresponding HIT.
> 
> Your comments are appreciated as usual.

You are really talking about defining domain names based on HITs and
storing them in a well known domain.  Maybe the title could be
simplified to "Storing HITs as domain names in the DNS".

What if the target end system uses an RVS?  

   2.1. Preconfigured Domain
   The systems using this method MUST have the same domain pre-
   configured, for example hit-to-ip.example.net.  

It seems like this could be slightly relaxed to state that systems MUST
share at least one top-level domain storing the HITs, since it is
conceivable that more than one server (name service provider) could be
used, and records could be looked up at multiple places.

   2.4  Managing the Records
   The system MAY send DNS UPDATE[RFC2136] to the server provided by SOA
   MNAME field of the domain.  The system MUST use HIT as the source
   address in this case.  

Can you clarify what "source address" you are talking about above?

   The system MAY add or delete A/AAAA or CNAME
   records for its own HIT representation.  The domain provided in SOA
   MNAME field of the preconfigured domain MUST have Host Identity of
   the server stored in DNS, the IP addresses MUST be listed in that
   domain using suggested method and the server MUST accept DNS UPDATE
   messages, which add or delete A/AAAA or CNAME records for the HIT
   representation of the client after successfull HIP base exchange.

It might be helpful to clarify that the HIP base exchange here serves to
authenticate the origin of the DNS UPDATE, from the server's
perspective.

Also, DHTs are an alternative lookup mechanism that can be used in this
scenario; it would be helpful to reference that draft:
http://tools.ietf.org/html/draft-ahrenholz-hiprg-dht-03

- Tom
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From hipsec-bounces@ietf.org  Wed Jan 28 23:49:44 2009
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Subject: [Hipsec] feedback of hiccups-01 draft
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Hi,

I have some feedback of the hiccups draft. The draft is well written and 
easy to read and understand. However, I have few questions (sorry if 
these have been asked already):

* I guess the draft assumes that data packets may be sent over HIP-aware 
overlays. I would suggest that the authors have a look at 
draft-heer-hip-middle-auth and perhaps add a pointer to the draft. 
Particularly, I would propose to make the public key mandatory and 
perhaps the middlebox extension as SHOULD? There is a new version of the 
draft coming up very soon. Feel free to ask Tobias for a preview if you 
are interested.

* The justification for the seq/ack mechanism is a bit unclear. Is it 
only about replay protection?

* I just implemented minimal support for HIP_DATA in HIPL. Now the 
implementation should be able to respond with an R1 to a HIPL_DATA 
packet. Now we need to test it for interoperability :) I would suggest 
that OpenHIP folks also implemented this feature because it should be 
only few lines of code.

* Second paragraph in section 5 explain about the issues with 
fragmentation. Implementation wise, shouldn't this problem be just 
solved by lowering the MTU of the tunnel device by the size of HIP 
header, [HOST_ID], payload HMAC and HIP_SIGNATURE?
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From: "Henderson, Thomas R" <thomas.r.henderson@boeing.com>
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Subject: Re: [Hipsec] feedback of hiccups-01 draft
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> 
> * The justification for the seq/ack mechanism is a bit unclear. Is it 
> only about replay protection?

I have a similar question-- why not just make this an unreliable data
service and delegate reliability to the application?

> 
> * I just implemented minimal support for HIP_DATA in HIPL. Now the 
> implementation should be able to respond with an R1 to a HIPL_DATA 
> packet. Now we need to test it for interoperability :) I 
> would suggest 
> that OpenHIP folks also implemented this feature because it should be 
> only few lines of code.
> 

what is your user-space API for this service?  It is some kind of
SEQPACKET socket?

> * Second paragraph in section 5 explain about the issues with 
> fragmentation. Implementation wise, shouldn't this problem be just 
> solved by lowering the MTU of the tunnel device by the size of HIP 
> header, [HOST_ID], payload HMAC and HIP_SIGNATURE?

I think this is a complicated issue and agree that it would be helpful
to give more guidance on how to handle it, beyond "should not generate
too large datagrams".  Again, there may be API issues to discuss with
respect to this.

- Tom
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