IETF Logo Mail Archive

Re: Unknown header extension or option

Fernando Gont <fgont@si6networks.com> Sun, 23 November 2014 17:53 UTC

Return-Path: <fgont@si6networks.com>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 058631A0A6A for <ipv6@ietfa.amsl.com>; Sun, 23 Nov 2014 09:53:08 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 1.074
X-Spam-Level: *
X-Spam-Status: No, score=1.074 tagged_above=-999 required=5 tests=[DATE_IN_PAST_03_06=1.076, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=no
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 Jd3cvvglgWhF for <ipv6@ietfa.amsl.com>; Sun, 23 Nov 2014 09:53:05 -0800 (PST)
Received: from web01.jbserver.net (web01.jbserver.net [IPv6:2a00:8240:6:a::1]) (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 54AE01A038C for <ipv6@ietf.org>; Sun, 23 Nov 2014 09:53:05 -0800 (PST)
Received: from [216.3.101.62] (helo=[192.168.216.97]) by web01.jbserver.net with esmtpsa (TLSv1.2:DHE-RSA-AES128-SHA:128) (Exim 4.84) (envelope-from <fgont@si6networks.com>) id 1XsbLF-0006SG-9R; Sun, 23 Nov 2014 18:52:57 +0100
Message-ID: <5471F32B.50304@si6networks.com>
Date: Sun, 23 Nov 2014 04:46:03 -1000
From: Fernando Gont <fgont@si6networks.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0
MIME-Version: 1.0
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: Unknown header extension or option
References: <54667C2C.6000509@gmail.com> <5466AB5C.9070806@acm.org> <D08FE588.32D32%evyncke@cisco.com> <CAESTAVuf=Bw3F4R-qc=o5m5iRzTJFRM1PXr7ORGM354rYovpJw@mail.gmail.com> <A190841A-32E5-423E-BA58-FB816227AB0A@cisco.com> <00423ECC-0B11-40AF-9AE4-E6577B0DBE77@townsley.net> <A3FE6519-0089-45D5-831C-A1CAB57473F8@cisco.com> <6E6055FF-09A0-4323-9570-4B8CD033CC26@townsley.net> <2434FDC7-A918-4FC0-BBD8-708FBC08A79F@cisco.com> <F23BC0AC-0785-41BC-A493-1D1A3037FA2C@cisco.com> <ABF588CA-2205-4102-8060-42421FD95EF1@cisco.com> <54709FD8.9040900@si6networks.com> <5470DCC2.4020109@gmail.com>
In-Reply-To: <5470DCC2.4020109@gmail.com>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Archived-At: http://mailarchive.ietf.org/arch/msg/ipv6/hz5wUa3BlGDdYjtuuDo4UR2C4cA
Cc: Ole Troan <ot@cisco.com>, 6man WG <ipv6@ietf.org>, "Fred Baker (fred)" <fred@cisco.com>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.15
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: <http://www.ietf.org/mail-archive/web/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: Sun, 23 Nov 2014 17:53:08 -0000

On 11/22/2014 08:58 AM, Brian E Carpenter wrote:
> On 23/11/2014 03:38, Fernando Gont wrote:
>> Hi, Ole,
>>
>> On 11/17/2014 05:45 PM, Ole Troan wrote:
>> [....]
>>> because there is no way an implementation can skip past an unknown
>>> header, unless we declared that every new IP protocol must have the
>>> same field layout in the preamble.
>>
>> Or that we do this:
>> <http://tools.ietf.org/id/draft-gont-6man-ipv6-universal-extension-header-01.txt>
> 
> In any case it's IMHO a lot more complicated than an erratum in 2460
> can possibly fix; we already have two RFCs that update 2460 in this
> area (6564, 7045) and three normative drafts (draft-gont-opsec-ipv6-eh-filtering,
> draft-gont-6man-ipv6-opt-transmit, draft-gont-6man-ipv6-universal-extension-header).
> Plus approved and proposed updates to the routing header.

Fully agree.

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

v2.23.0 | Report a Bug | By Email