From off-path-bof-bounces@ietf.org Sun Sep 17 23:36:39 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GP9vl-0007Zh-2y; Sun, 17 Sep 2006 23:36:25 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GP9vj-0007Uz-BN for off-path-bof@ietf.org; Sun, 17 Sep 2006 23:36:23 -0400 Received: from szxga03-in.huawei.com ([61.144.161.55]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GP9vh-0002nE-RB for off-path-bof@ietf.org; Sun, 17 Sep 2006 23:36:23 -0400 Received: from huawei.com (szxga03-in [172.24.2.9]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J5R004SZRTH9I@szxga03-in.huawei.com> for off-path-bof@ietf.org; Mon, 18 Sep 2006 11:46:29 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J5R005O0RTGE4@szxga03-in.huawei.com> for off-path-bof@ietf.org; Mon, 18 Sep 2006 11:46:29 +0800 (CST) Received: from w52438 ([10.164.5.109]) by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J5R00BY3RJDKN@szxml03-in.huawei.com> for off-path-bof@ietf.org; Mon, 18 Sep 2006 11:40:29 +0800 (CST) Date: Mon, 18 Sep 2006 11:35:27 +0800 From: Kylin Wei To: off-path-bof@ietf.org Message-id: <000001c6dad3$7c05b020$6d05a40a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Office Outlook 11 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Thread-index: Acba03uagkps0lRsSqONKRJgRI3pqw== X-Spam-Score: 0.0 (/) X-Scan-Signature: 7bac9cb154eb5790ae3b2913587a40de Subject: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org Dear off-path experts, How does an endpoint discover a local policy by DHCP? Who can tell me detailed approach? Thanks in advance. Kylin Wei _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof From off-path-bof-bounces@ietf.org Mon Sep 18 07:19:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPH9R-0004uz-Un; Mon, 18 Sep 2006 07:19:01 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPH9Q-0004uu-Q9 for off-path-bof@ietf.org; Mon, 18 Sep 2006 07:19:00 -0400 Received: from exchfe1.cs.cornell.edu ([128.84.97.27]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GPH9O-0000Rx-IL for off-path-bof@ietf.org; Mon, 18 Sep 2006 07:19:00 -0400 Received: from EXCHANGE2.cs.cornell.edu ([128.84.96.44]) by exchfe1.cs.cornell.edu with Microsoft SMTPSVC(6.0.3790.1830); Mon, 18 Sep 2006 07:18:57 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? Date: Mon, 18 Sep 2006 07:18:53 -0400 Message-ID: In-Reply-To: <000001c6dad3$7c05b020$6d05a40a@china.huawei.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? Thread-Index: Acba03uagkps0lRsSqONKRJgRI3pqwAQKbKg From: "Paul Francis" To: "Kylin Wei" , X-OriginalArrivalTime: 18 Sep 2006 11:18:57.0994 (UTC) FILETIME=[3C0CD2A0:01C6DB14] X-Spam-Score: 0.0 (/) X-Scan-Signature: ea4ac80f790299f943f0a53be7e1a21a Cc: X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org I don't think any of us envisioned that an endpoint would learn policy = via DHCP. PF =20 -----Original Message----- From: Kylin Wei [mailto:weiqikun@huawei.com]=20 Sent: Sunday, September 17, 2006 11:35 PM To: off-path-bof@ietf.org Subject: [OFF-PATH-BOF] How does an endpoint discover a local policy by = DHCP? Dear off-path experts, How does an endpoint discover a local policy by DHCP? Who can tell me detailed approach? Thanks in advance. Kylin Wei=20 _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof From off-path-bof-bounces@ietf.org Mon Sep 18 08:27:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPIEB-0007qf-1H; Mon, 18 Sep 2006 08:27:59 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPIE9-0007qZ-GK for off-path-bof@ietf.org; Mon, 18 Sep 2006 08:27:57 -0400 Received: from willers.employees.org ([192.83.249.36]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GPIE8-0003zR-88 for off-path-bof@ietf.org; Mon, 18 Sep 2006 08:27:57 -0400 Received: from [10.86.241.25] (bxb-natpool-121.cisco.com [12.159.148.121]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: sbrim) by willers.employees.org (Postfix) with ESMTP id 487995CCD9; Mon, 18 Sep 2006 05:27:53 -0700 (PDT) Message-ID: <450E90C7.5030701@employees.org> Date: Mon, 18 Sep 2006 08:27:51 -0400 From: Scott W Brim Organization: Cisco Systems, Inc. User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.7) Gecko/20060909 Thunderbird/1.5.0.7 Mnenhy/0.7.4.0 MIME-Version: 1.0 To: Paul Francis Subject: Re: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? References: In-Reply-To: X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 6d62ab47271805379d7172ee693a45db Cc: off-path-bof@ietf.org X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org On 09/18/2006 07:18 AM, Paul Francis allegedly wrote: > I don't think any of us envisioned that an endpoint would learn policy via > DHCP. Rather, a policy server? _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof From off-path-bof-bounces@ietf.org Mon Sep 18 08:45:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPIUy-0005bn-AU; Mon, 18 Sep 2006 08:45:20 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPIUw-0005bi-HC for off-path-bof@ietf.org; Mon, 18 Sep 2006 08:45:18 -0400 Received: from mail.gmx.net ([213.165.64.20]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GPIUv-0007lh-3h for off-path-bof@ietf.org; Mon, 18 Sep 2006 08:45:18 -0400 Received: (qmail invoked by alias); 18 Sep 2006 12:45:15 -0000 Received: from unknown (EHLO [192.168.1.66]) [66.54.228.162] by mail.gmx.net (mp002) with SMTP; 18 Sep 2006 14:45:15 +0200 X-Authenticated: #29516787 Message-ID: <450E94E3.2060202@gmx.net> Date: Mon, 18 Sep 2006 08:45:23 -0400 From: Hannes Tschofenig User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: Scott W Brim Subject: Re: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? References: <450E90C7.5030701@employees.org> In-Reply-To: <450E90C7.5030701@employees.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-Spam-Score: 0.0 (/) X-Scan-Signature: d6b246023072368de71562c0ab503126 Cc: off-path-bof@ietf.org X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org What type of policies are we talking about? Ciao Hannes Scott W Brim schrieb: > On 09/18/2006 07:18 AM, Paul Francis allegedly wrote: >> I don't think any of us envisioned that an endpoint would learn policy via >> DHCP. > > Rather, a policy server? > > _______________________________________________ > OFF-PATH-BOF mailing list > OFF-PATH-BOF@ietf.org > https://www1.ietf.org/mailman/listinfo/off-path-bof > > _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof From off-path-bof-bounces@ietf.org Mon Sep 18 09:54:26 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPJZq-0000Ij-5v; Mon, 18 Sep 2006 09:54:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPJZo-0000Ie-E4 for off-path-bof@ietf.org; Mon, 18 Sep 2006 09:54:24 -0400 Received: from exchfe1.cs.cornell.edu ([128.84.97.27]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GPJZn-0001CH-7S for off-path-bof@ietf.org; Mon, 18 Sep 2006 09:54:24 -0400 Received: from EXCHANGE2.cs.cornell.edu ([128.84.96.44]) by exchfe1.cs.cornell.edu with Microsoft SMTPSVC(6.0.3790.1830); Mon, 18 Sep 2006 09:54:22 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? Date: Mon, 18 Sep 2006 09:54:18 -0400 Message-ID: In-Reply-To: <450E90C7.5030701@employees.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? Thread-Index: AcbbHd7dbsIQ6wbfTXWzGC8m6KXsOwAC7tpA From: "Paul Francis" To: "Scott W Brim" X-OriginalArrivalTime: 18 Sep 2006 13:54:22.0860 (UTC) FILETIME=[F21A74C0:01C6DB29] X-Spam-Score: 0.0 (/) X-Scan-Signature: 2409bba43e9c8d580670fda8b695204a Cc: off-path-bof@ietf.org X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org How the boxes that have policy get their policy I think of as peripheral = to the core problem. There may of course be lots of value in standardizing = this interface (in what we implemented, we use CPL), but as a researcher I = don't see any particularly interesting issues here. Am I wrong? PF =20 -----Original Message----- From: Scott W Brim [mailto:swb@employees.org]=20 Sent: Monday, September 18, 2006 8:28 AM To: Paul Francis Cc: Kylin Wei; off-path-bof@ietf.org Subject: Re: [OFF-PATH-BOF] How does an endpoint discover a local policy = by DHCP? On 09/18/2006 07:18 AM, Paul Francis allegedly wrote: > I don't think any of us envisioned that an endpoint would learn policy = > via DHCP. Rather, a policy server? _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof From off-path-bof-bounces@ietf.org Tue Sep 19 02:08:39 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPYmY-0005wU-OY; Tue, 19 Sep 2006 02:08:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPYmW-0005ud-LK for off-path-bof@ietf.org; Tue, 19 Sep 2006 02:08:32 -0400 Received: from exchfenlb-2.cs.cornell.edu ([128.84.97.34] helo=exchfe2.cs.cornell.edu) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GPYmV-0002xl-D9 for off-path-bof@ietf.org; Tue, 19 Sep 2006 02:08:32 -0400 Received: from exchfe1.cs.cornell.edu ([128.84.97.27]) by exchfe2.cs.cornell.edu with Microsoft SMTPSVC(6.0.3790.1830); Tue, 19 Sep 2006 02:08:29 -0400 Received: from pit002.cs.cornell.edu ([128.84.223.102]) by exchfe1.cs.cornell.edu over TLS secured channel with Microsoft SMTPSVC(6.0.3790.1830); Tue, 19 Sep 2006 02:08:28 -0400 Subject: Re: [OFF-PATH-BOF] How does an endpoint discover a local policy by DHCP? From: Saikat Guha To: Scott W Brim In-Reply-To: <450E90C7.5030701@employees.org> References: <450E90C7.5030701@employees.org> Organization: Cornell University Date: Tue, 19 Sep 2006 02:08:48 -0400 Message-Id: <1158646129.2966.32.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.3 (2.6.3-1.fc5.5) X-OriginalArrivalTime: 19 Sep 2006 06:08:28.0035 (UTC) FILETIME=[06246D30:01C6DBB2] X-Spam-Score: 0.0 (/) X-Scan-Signature: 4d87d2aa806f79fed918a62e834505ca Cc: off-path-bof@ietf.org X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0079520154==" Errors-To: off-path-bof-bounces@ietf.org --===============0079520154== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-1d524/YXPQZ/1tx2NVlP" --=-1d524/YXPQZ/1tx2NVlP Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2006-09-18 at 08:27 -0400, Scott W Brim wrote: > On 09/18/2006 07:18 AM, Paul Francis allegedly wrote: > > I don't think any of us envisioned that an endpoint would learn policy = via > > DHCP. >=20 > Rather, a policy server? If the question is how someone learns of which policy server to use ... Signaling packets go 1) up, 2) across, and 3) down; and the next-hop policy server on each segment is determined differently. 1) UP: Drilling out towards the Internet through multiple layers of firewalls ... a packet (any packet) is sent outwards, a firewall/M-Box intercepts it and responds with an ICMP-like error message that informs the source what policy server to contact for auth. 2) ACROSS: Packet goes from internet-facing firewall of the stack of firewalls for the source to the internet-facing firewall of the recipient. The signaling server for the recipient's domain is resolved over DNS through SRV-type records. 3) DOWN: Drilling down to the destination through multiple firewalls. When the destination registers its presence it creates a chain of registrations to the internet-facing signaling proxy for his domain (chain discovered through the drill-out in #1 above). The signaling packets bound for the destination follow the reverse route of the registration-chain. --=20 Saikat --=-1d524/YXPQZ/1tx2NVlP Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQBFD4lwnFltqi691/oRAuNMAJ9fhNHY9AMnhJT/8bwebxQBdOwq1QCfSw2t /+1Bb+3gRP7N/tjUa5fkeqU= =8JGt -----END PGP SIGNATURE----- --=-1d524/YXPQZ/1tx2NVlP-- --===============0079520154== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof --===============0079520154==-- From off-path-bof-bounces@ietf.org Tue Sep 19 03:40:46 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPaDh-0005pF-Lr; Tue, 19 Sep 2006 03:40:41 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GPaDg-0005mo-Fb for off-path-bof@ietf.org; Tue, 19 Sep 2006 03:40:40 -0400 Received: from szxga01-in.huawei.com ([61.144.161.53]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GPaDd-0001Vh-MF for off-path-bof@ietf.org; Tue, 19 Sep 2006 03:40:40 -0400 Received: from huawei.com (szxga01-in [172.24.2.3]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J5T002RIX2Q9L@szxga01-in.huawei.com> for off-path-bof@ietf.org; Tue, 19 Sep 2006 15:35:14 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J5T0035JX2Q3M@szxga01-in.huawei.com> for off-path-bof@ietf.org; Tue, 19 Sep 2006 15:35:14 +0800 (CST) Received: from w52438 ([10.164.5.109]) by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J5T00036XHK4H@szxml04-in.huawei.com> for off-path-bof@ietf.org; Tue, 19 Sep 2006 15:44:12 +0800 (CST) Date: Tue, 19 Sep 2006 15:31:21 +0800 From: Kylin Wei Subject: RE: [OFF-PATH-BOF] How does an endpoint discover a local policy byDHCP? In-reply-to: <1158646129.2966.32.camel@localhost.localdomain> To: 'Saikat Guha' , 'Scott W Brim' Message-id: <000701c6dbbd$9a7f8c70$6d05a40a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Office Outlook 11 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Thread-index: AcbbshgAKBxv/zaTSZmKWs5KcI0TKQAC3KGw X-Spam-Score: 0.0 (/) X-Scan-Signature: 0ddefe323dd869ab027dbfff7eff0465 Cc: off-path-bof@ietf.org X-BeenThere: off-path-bof@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "BOF: Path-decoupled Signaling for Data" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: off-path-bof-bounces@ietf.org Hi Saikat, Thank you very much for your detailed introduction. I should say sorry because I make a mistake. My original question is "How does an endpoint discover a local policy box by DHCP". Kylin Wei > -----Original Message----- > From: Saikat Guha [mailto:saikat@cs.cornell.edu] > Sent: Tuesday, September 19, 2006 2:09 PM > To: Scott W Brim > Cc: off-path-bof@ietf.org > Subject: Re: [OFF-PATH-BOF] How does an endpoint discover a local policy > byDHCP? > > On Mon, 2006-09-18 at 08:27 -0400, Scott W Brim wrote: > > On 09/18/2006 07:18 AM, Paul Francis allegedly wrote: > > > I don't think any of us envisioned that an endpoint would learn policy via > > > DHCP. > > > > Rather, a policy server? > > If the question is how someone learns of which policy server to use ... > > Signaling packets go 1) up, 2) across, and 3) down; and the next-hop > policy server on each segment is determined differently. > > 1) UP: Drilling out towards the Internet through multiple layers of > firewalls ... a packet (any packet) is sent outwards, a firewall/M-Box > intercepts it and responds with an ICMP-like error message that informs > the source what policy server to contact for auth. > > 2) ACROSS: Packet goes from internet-facing firewall of the stack of > firewalls for the source to the internet-facing firewall of the > recipient. The signaling server for the recipient's domain is resolved > over DNS through SRV-type records. > > 3) DOWN: Drilling down to the destination through multiple firewalls. > When the destination registers its presence it creates a chain of > registrations to the internet-facing signaling proxy for his domain > (chain discovered through the drill-out in #1 above). The signaling > packets bound for the destination follow the reverse route of the > registration-chain. > > -- > Saikat _______________________________________________ OFF-PATH-BOF mailing list OFF-PATH-BOF@ietf.org https://www1.ietf.org/mailman/listinfo/off-path-bof