IETF Logo Mail Archive

Re: [dhcwg] DUID+IAID

"Bernie Volz (volz)" <volz@cisco.com> Mon, 02 April 2012 15:20 UTC

Return-Path: <volz@cisco.com>
X-Original-To: dhcwg@ietfa.amsl.com
Delivered-To: dhcwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7F9D921F8629 for <dhcwg@ietfa.amsl.com>; Mon, 2 Apr 2012 08:20:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.999
X-Spam-Level:
X-Spam-Status: No, score=-9.999 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, J_CHICKENPOX_44=0.6, RCVD_IN_DNSWL_HI=-8]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CFJhUNYP4riL for <dhcwg@ietfa.amsl.com>; Mon, 2 Apr 2012 08:20:49 -0700 (PDT)
Received: from rcdn-iport-5.cisco.com (rcdn-iport-5.cisco.com [173.37.86.76]) by ietfa.amsl.com (Postfix) with ESMTP id 6821321F8623 for <dhcwg@ietf.org>; Mon, 2 Apr 2012 08:20:49 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=volz@cisco.com; l=1336; q=dns/txt; s=iport; t=1333380049; x=1334589649; h=mime-version:content-transfer-encoding:subject:date: message-id:in-reply-to:references:from:to:cc; bh=LS13gR41v0jt6gI2MTXABP1w1AP/HctSCXiqeT+u0RQ=; b=CiT4bH1xb+iolTsc+R9TwOxV5oMqhY+1M0FaprHAkQaZpznaTp9swMB2 cGGcRbi2pt2SbkEj3Kw/4xXI7oLkcZhVmwJYo8VjvuHKhzu6Nk2Gmnv9h 3gxf2ih24nEciC1EjEUz8CTTdgi6/WWnF4vaW8sw+jq9Mz9o+X38heFPK o=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AgAFAJnDeU+tJXG9/2dsb2JhbABFuRCBB4IJAQEBAwEBAQEPAR0KNAsFBwQCAQgQAQQBAQsGFwEGASYfCQgCBAESCBqHYgULmzeeawSQOWMEiFibUIFogwU
X-IronPort-AV: E=Sophos;i="4.75,357,1330905600"; d="scan'208";a="71385371"
Received: from rcdn-core2-2.cisco.com ([173.37.113.189]) by rcdn-iport-5.cisco.com with ESMTP; 02 Apr 2012 15:20:49 +0000
Received: from xbh-rcd-101.cisco.com (xbh-rcd-101.cisco.com [72.163.62.138]) by rcdn-core2-2.cisco.com (8.14.3/8.14.3) with ESMTP id q32FKmh5011599; Mon, 2 Apr 2012 15:20:48 GMT
Received: from xmb-rcd-101.cisco.com ([72.163.62.143]) by xbh-rcd-101.cisco.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 2 Apr 2012 10:20:48 -0500
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
Date: Mon, 02 Apr 2012 10:20:48 -0500
Message-ID: <D9B5773329187548A0189ED6503667890B9F3981@XMB-RCD-101.cisco.com>
In-Reply-To: <8D23D4052ABE7A4490E77B1A012B6307472D49C0@mbx-01.win.nominum.com>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: [dhcwg] DUID+IAID
thread-index: AQHNDk7f4FgtkXLiwESgwgUDJGkpD5aCkfCbgADC4wD//4tAkoAAeMQA//+VNoKAAHcfAP//jNrqAJcejkA=
References: <CAAed6vsuc5AoJ-pmdu-CYLzJ4jEtSUkxYy1aLTJbkoRiEjUQ9A@mail.gmail.com><201203300826.q2U8Qx51078004@givry.fdupont.fr><8D23D4052ABE7A4490E77B1A012B6307472D478A@mbx-01.win.nominum.com><CAAed6vv6gDkjnHO1YujFbTm=fhJVZHi_25u6=PRgTiDrO6uR4g@mail.gmail.com><8D23D4052ABE7A4490E77B1A012B6307472D4946@mbx-01.win.nominum.com><CAAed6vtnoi2fTEsb7kNpVXsnbh7H60mn7wUwcPMu0juVBSMCsw@mail.gmail.com><8D23D4052ABE7A4490E77B1A012B6307472D4986@mbx-01.win.nominum.com>, <CAAed6vtKw40+BiK4a9KwKxZZ_fZSh3N7kjAMNeyXGUuyASwfvw@mail.gmail.com> <8D23D4052ABE7A4490E77B1A012B6307472D49C0@mbx-01.win.nominum.com>
From: "Bernie Volz (volz)" <volz@cisco.com>
To: Ted Lemon <Ted.Lemon@nominum.com>, "A. Gregory Rabil" <greg.rabil@jagornet.com>
X-OriginalArrivalTime: 02 Apr 2012 15:20:48.0771 (UTC) FILETIME=[2ED1ED30:01CD10E4]
Cc: dhcwg@ietf.org, Francis Dupont <Francis.Dupont@fdupont.fr>
Subject: Re: [dhcwg] DUID+IAID
X-BeenThere: dhcwg@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <dhcwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dhcwg>
List-Post: <mailto:dhcwg@ietf.org>
List-Help: <mailto:dhcwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 02 Apr 2012 15:20:50 -0000

Greg:

Most of the time the IAID is immaterial unless you want explicit IAIDs
to get an explicit address (or prefix delegation). When the client shows
up and wants an address or prefix, you give it the reservation based on
the Client DUID.

If there is a multi-homed client (such as one that has a wired and
wireless) and you bridge these networks, you won't be able to assure
whether the wired or wireless gets that reservation since they appear on
the same "link" to the server, but does that really matter in this case?

- Bernie

-----Original Message-----
From: dhcwg-bounces@ietf.org [mailto:dhcwg-bounces@ietf.org] On Behalf
Of Ted Lemon
Sent: Friday, March 30, 2012 11:12 AM
To: A. Gregory Rabil
Cc: dhcwg@ietf.org; Francis Dupont
Subject: Re: [dhcwg] DUID+IAID

> If I want to assign a specific address to the wired interface and a
separate, specific address to the wireless interface, how do I know what
the IAID will be for each of them?

You find out when you get a DHCP packet from each interface, and each
packet contains a DUID+IAID, and also contains the hardware address
(assuming that you already know which hardware address corresponds to
which interface).
_______________________________________________
dhcwg mailing list
dhcwg@ietf.org
https://www.ietf.org/mailman/listinfo/dhcwg

v2.23.0 | Report a Bug | By Email