Re: Updated IID length text
David Farmer <farmer@umn.edu> Fri, 20 January 2017 05:25 UTC
Return-Path: <farmer@umn.edu>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C46B912989C for <ipv6@ietfa.amsl.com>; Thu, 19 Jan 2017 21:25:43 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.999
X-Spam-Level:
X-Spam-Status: No, score=-6.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_SORBS_SPAM=0.5, RP_MATCHES_RCVD=-3.199, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=umn.edu
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zoYP3bKqlHL6 for <ipv6@ietfa.amsl.com>; Thu, 19 Jan 2017 21:25:42 -0800 (PST)
Received: from mta-p7.oit.umn.edu (mta-p7.oit.umn.edu [134.84.196.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2574A129890 for <ipv6@ietf.org>; Thu, 19 Jan 2017 21:25:42 -0800 (PST)
Received: from localhost (unknown [127.0.0.1]) by mta-p7.oit.umn.edu (Postfix) with ESMTP id 9DCE87B6 for <ipv6@ietf.org>; Fri, 20 Jan 2017 05:25:41 +0000 (UTC)
X-Virus-Scanned: amavisd-new at umn.edu
Received: from mta-p7.oit.umn.edu ([127.0.0.1]) by localhost (mta-p7.oit.umn.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id k6O_HCDiXNZj for <ipv6@ietf.org>; Thu, 19 Jan 2017 23:25:41 -0600 (CST)
Received: from mail-ua0-f199.google.com (mail-ua0-f199.google.com [209.85.217.199]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mta-p7.oit.umn.edu (Postfix) with ESMTPS id 662CC6CB for <ipv6@ietf.org>; Thu, 19 Jan 2017 23:25:41 -0600 (CST)
Received: by mail-ua0-f199.google.com with SMTP id 7so38889392uas.6 for <ipv6@ietf.org>; Thu, 19 Jan 2017 21:25:41 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=umn.edu; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=gJyWlwVxHu0QQUmKZQk/jwM09xhT0sTvGzhcKrryG+Y=; b=FKUl3z3d8/n583vvPVx/X9qWhouVLGw0Jp2uBiGlEd/OPwIDDh/bw9QQsuG+M9K4Cn tGjOqhiNgRlsVegZVxqdiS670CUa1qw3iepSPLr7yYmedAEOW3X850S2VFWOR5dd6032 5us2qzuQyVpL6Z/wKA24pjhllz4G0ifb7pLy3lvcgtB6zmovgetFIslLPPRmuCguynTC PwwLrV57tZoY6JQ5JDZ8+CfsYAagPv+1pQLe+iOAcnK6mW2yUoQHi/vu2Dg2egRxGtpQ r6G/9P6fTeW2HmY11cVHw9PeBzJHyQC5gxBefbLSY8fCklRECHZ4WzptNUKs3L2atzuZ R0/g==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=gJyWlwVxHu0QQUmKZQk/jwM09xhT0sTvGzhcKrryG+Y=; b=fUeLYvuCTTS1QVVbQdzDH/nj/23fg/JQTLM36EbtbI0wU6ro0OU5z3cpp8kNZqRhv6 SnLFzmL2uWu3Vmvv+ISNw6I/GksBjdSyTiLe0Bk2KoqVUlHZ4pfrnXjtXbegNgxGbXan c7oCjib9N8ObUJT1CCRWyZ6/JRGbfsaL/iDON7kcJOzHJz/79UbUAdm3ZkzXRHiSbT8M VCOckI6Zs1WdO4iUuxiWDHPp05TLsgH3snKUcl5JhDMa4Rd6veNgNL4jONPeLvv5otvF 4XERfugEY0ybO+JKPjC84XphJq6Xx50QJUXDk0GbS2IcsZ0LtAQmwlSqbDiFi/uc9PV9 4NRA==
X-Gm-Message-State: AIkVDXJyjuckZVuzP2h6szK/+0YgebdOHUmW8CzYIGO9Atw0A7hPc5EzVwAEGcAkEal20oTHtejo/azUbJgrJalv2/J4rLpjiAFLFRAuN+RCGBq8zlV6TPY81RY5I6B0FqJuEFdbXzq57J54u5U=
X-Received: by 10.31.5.67 with SMTP id 64mr6564122vkf.117.1484889940792; Thu, 19 Jan 2017 21:25:40 -0800 (PST)
X-Received: by 10.31.5.67 with SMTP id 64mr6564116vkf.117.1484889940599; Thu, 19 Jan 2017 21:25:40 -0800 (PST)
MIME-Version: 1.0
Received: by 10.103.84.15 with HTTP; Thu, 19 Jan 2017 21:25:39 -0800 (PST)
In-Reply-To: <CAKD1Yr1no52iZ2NwfKse6tXi0QpOP+Qe-vU68M4g1ZhmsgQadg@mail.gmail.com>
References: <148406593094.22166.2894840062954191477.idtracker@ietfa.amsl.com> <F6953234-3F85-4E28-9861-433ADD01A490@gmail.com> <m2wpdzhncn.wl-randy@psg.com> <82245ef2-cd34-9bd6-c04e-f262e285f983@gmail.com> <m2d1frhjfn.wl-randy@psg.com> <18e6e13c-e605-48ff-4906-2d5531624d64@gmail.com> <CAKD1Yr1cvZ8Y3+bHeML=Xwqr+YgDspZGnZi=jqQj4qe2kMc4zw@mail.gmail.com> <m2lguffnco.wl-randy@psg.com> <CAKD1Yr1TrTiPRdyutobmb_77XJ7guNzLrg=H_p7qi4BfQ8V=GA@mail.gmail.com> <m2d1frfm6m.wl-randy@psg.com> <CAKD1Yr2Njjd8_Mr+6TRFF6C5pdcX4yFgpFVyEkykDuytu2B8mg@mail.gmail.com> <2A5073777007277764473D78@PSB> <4596c3d4-a337-f08e-7909-f14270b7085f@gmail.com> <CAN-Dau06R3iYRpYLADhvHox4C9qdsJCuxFsJapRhOQcWT4qk_g@mail.gmail.com> <CAO42Z2weZcoHiBzN94QAQ9WGhWR16PmMMFNg=5YLmr_dhPjjpA@mail.gmail.com> <fcc7f136-b5da-527e-b495-5a2d7f7a3ce8@gmail.com> <55bb8bdbfbf4439da0aa702e5bc03e2c@XCH15-06-11.nw.nos.boeing.com> <bb79ce41f2cc465dab0a7f26466be26f@XCH15-06-11.nw.nos.boeing.com> <ed9fe2df-0dce-0ddc-bdee-561217d089bb@gmail.com> <e8b4d426-55b4-bd2e-ea4f-f8e56e831d44@gmail.com> <CAKD1Yr1no52iZ2NwfKse6tXi0QpOP+Qe-vU68M4g1ZhmsgQadg@mail.gmail.com>
From: David Farmer <farmer@umn.edu>
Date: Thu, 19 Jan 2017 23:25:39 -0600
Message-ID: <CAN-Dau0X2MYxOADLdaVcangeJrHo98t=buh1J2uCpEQAs93GDQ@mail.gmail.com>
Subject: Re: Updated IID length text
To: Lorenzo Colitti <lorenzo@google.com>
Content-Type: multipart/alternative; boundary="001a1143cc7270bd0905467fe15b"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/K-6MZtWM4TTbXd5Vs8xYmG1j3AI>
Cc: 6man <ipv6@ietf.org>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Jan 2017 05:25:44 -0000
On Thu, Jan 19, 2017 at 10:38 PM, Lorenzo Colitti <lorenzo@google.com> wrote: > On Fri, Jan 20, 2017 at 4:41 AM, Brian E Carpenter < > brian.e.carpenter@gmail.com> wrote: > >> However, correct use of Stateless Address Autoconfiguration >> (SLAAC)[RFC4862] requires all interfaces on a link to use the same >> length >> of Interface ID. Furthermore, to guarantee robust interoperability of >> SLAAC, >> a consistent length of Interface ID is desirable. For this reason, > > > I object to the text "for this reason", because SLAAC is not the only > reason. There are many reasons, many of which are written in 7421, and two > sentences in this paragraph are not sufficient to describe them. I propose > the following alternative, which I believe to be normatively identical: > > IPv6 routing is based on prefixes of any valid length up to 128 > [BCP198]. > For example, [RFC6164] standardises 127 bit prefixes on point-to-point > links. However, the Interface ID of all currently allocated unicast > addresses, > except those that start with the binary value 000, is required to be 64 > bits > long. The rationale for the 64 bit boundary in IPv6 addresses can be > found in > [RFC7421]. > > Cheers, > Lorenzo > How should that be interpreted? Do my Point-to-Point links need addresses that begin with binary 000? How do I get an allocation of those? Because it says I must use a 64 bit IID with the Global Unicast Allocation that I got from ARIN. Here is another problem, RFC 6164 probably should have updated 4291 for that reason. And if there are any future exceptions should update 4291bis, for similar reasons. There are lots of good reasons to use 64 bit IIDs almost everywhere, but there are exceptions. However this text doesn't leave room for any exceptions, even the one that it cites. Again keeping "required" I believe is a false imperative. If we can't fix that by going to "should", can we at least make room for official standards track exceptions, like the one cited and any future ones we agree on? Thanks -- =============================================== David Farmer Email:farmer@umn.edu Networking & Telecommunication Services Office of Information Technology University of Minnesota 2218 University Ave SE Phone: 612-626-0815 Minneapolis, MN 55414-3029 Cell: 612-812-9952 ===============================================
- Review of draft-ietf-6man-rfc4291bis-06 Brian Haberman
- Re: Review of draft-ietf-6man-rfc4291bis-06 Bob Hinden
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Punana Lebo
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian Haberman
- Re: Review of draft-ietf-6man-rfc4291bis-06 Bob Hinden
- Re: Review of draft-ietf-6man-rfc4291bis-06 Bob Hinden
- Re: Review of draft-ietf-6man-rfc4291bis-06 Bob Hinden
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 David Farmer
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 Lorenzo Colitti
- Re: Review of draft-ietf-6man-rfc4291bis-06 heasley
- Re: Review of draft-ietf-6man-rfc4291bis-06 Suresh Krishnan
- AW: Review of draft-ietf-6man-rfc4291bis-06 Karsten Thomann
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 sthaug
- Re: Review of draft-ietf-6man-rfc4291bis-06 Lorenzo Colitti
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: Review of draft-ietf-6man-rfc4291bis-06 Lorenzo Colitti
- Re: AW: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 Fernando Gont
- Re: Review of draft-ietf-6man-rfc4291bis-06 Fernando Gont
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 heasley
- Re: Review of draft-ietf-6man-rfc4291bis-06 Mark Smith
- Re: Review of draft-ietf-6man-rfc4291bis-06 Fernando Gont
- Re: Review of draft-ietf-6man-rfc4291bis-06 John C Klensin
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 David Farmer
- Re: Review of draft-ietf-6man-rfc4291bis-06 Mark Smith
- Re: Review of draft-ietf-6man-rfc4291bis-06 Brian E Carpenter
- IID length text [was Re: Review of draft-ietf-6ma… Brian E Carpenter
- Re: IID length text [was Re: Review of draft-ietf… Mark Smith
- Re: Review of draft-ietf-6man-rfc4291bis-06 Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: Review of draft-ietf-6man-rfc4291bis-06 Erik Kline
- Re: Review of draft-ietf-6man-rfc4291bis-06 Randy Bush
- Re: IID length text [was Re: Review of draft-ietf… Brian E Carpenter
- Re: IID length text Alexandre Petrescu
- Re: IID length text [was Re: Review of draft-ietf… Fernando Gont
- Re: IID length text Behcet Sarikaya
- Re: IID length text [was Re: Review of draft-ietf… Fernando Gont
- Re: IID length text Fernando Gont
- Re: IID length text Behcet Sarikaya
- Re: IID length text [was Re: Review of draft-ietf… Brian E Carpenter
- Re: IID length text Fernando Gont
- Re: IID length text Brian E Carpenter
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: IID length text Lorenzo Colitti
- Re: IID length text Brian E Carpenter
- Re: IID length text Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… Erik Kline
- Re: IID length text Brian E Carpenter
- Re: IID length text [was Re: Review of draft-ietf… Erik Kline
- Re: IID length text [was Re: Review of draft-ietf… Brian E Carpenter
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: IID length text [was Re: Review of draft-ietf… otroan
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: IID length text [was Re: Review of draft-ietf… Tim Chown
- Re: IID length text Behcet Sarikaya
- Re: IID length text [was Re: Review of draft-ietf… Fred Baker
- Re: IID length text Fernando Gont
- Re: IID length text Behcet Sarikaya
- Re: IID length text [was Re: Review of draft-ietf… otroan
- Unclear text [was IID length text [was Re: Review… Brian E Carpenter
- Re: IID length text [was Re: Review of draft-ietf… Brian E Carpenter
- RE: IID length text [was Re: Review of draft-ietf… Manfredi, Albert E
- Re: IID length text Fernando Gont
- Re: Unclear text [was IID length text [was Re: Re… Fernando Gont
- Re: IID length text [was Re: Review of draft-ietf… Fernando Gont
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… Timothy Winters
- Re: IID length text [was Re: Review of draft-ietf… otroan
- Re: Unclear text [was IID length text [was Re: Re… otroan
- Re: IID length text Behcet Sarikaya
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: IID length text [was Re: Review of draft-ietf… james woodyatt
- Re: IID length text [was Re: Review of draft-ietf… 神明達哉
- Updated IID length text Brian E Carpenter
- RE: Updated IID length text Manfredi, Albert E
- RE: Updated IID length text Manfredi, Albert E
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Brian E Carpenter
- RE: Updated IID length text Manfredi, Albert E
- RE: Updated IID length text Manfredi, Albert E
- Re: Updated IID length text Fernando Gont
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Fernando Gont
- Re: Updated IID length text Fernando Gont
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Fernando Gont
- Re: Updated IID length text Fernando Gont
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Alexandre Petrescu
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Alexandre Petrescu
- Re: IID length text [was Re: Review of draft-ietf… Sander Steffann
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text Brian E Carpenter
- RE: Updated IID length text Manfredi, Albert E
- RE: Updated IID length text Manfredi, Albert E
- Re: Updated IID length text Alexandre Petrescu
- RE: Updated IID length text Templin, Fred L
- Re: Updated IID length text Mark Andrews
- Re: IID length text [was Re: Review of draft-ietf… David Farmer
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text David Farmer
- Re: Updated IID length text Brian E Carpenter
- Re: Review of draft-ietf-6man-rfc4291bis-06 Suresh Krishnan
- Re: IID length text Suresh Krishnan
- Re: Updated IID length text Suresh Krishnan
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text David Farmer
- Re: Updated IID length text Lorenzo Colitti
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text David Farmer
- Re: Updated IID length text otroan
- Re: IID length text [was Re: Review of draft-ietf… otroan
- Re: Updated IID length text otroan
- Re: Updated IID length text otroan
- RE: IID length text [was Re: Review of draft-ietf… Manfredi, Albert E
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text Bob Hinden
- Re: Updated IID length text Brian E Carpenter
- Re: Updated IID length text otroan
- Re: Updated IID length text otroan
- Re: IID length text [was Re: Review of draft-ietf… Tore Anderson
- Re: IID length text [was Re: Review of draft-ietf… Lorenzo Colitti
- Re: IID length text [was Re: Review of draft-ietf… Tore Anderson
- Re: IID length text sthaug
- Re: IID length text Brian E Carpenter
- Re: Updated IID length text Bob Hinden
- Re: Updated IID length text Suresh Krishnan