Re: Objection to draft-ietf-6man-rfc4291bis-07.txt - /63 and /65 RAs on linux

Alexandre Petrescu <alexandre.petrescu@gmail.com> Wed, 01 March 2017 19:38 UTC

Return-Path: <alexandre.petrescu@gmail.com>
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 EA63D129683 for <ipv6@ietfa.amsl.com>; Wed, 1 Mar 2017 11:38:06 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.353
X-Spam-Level:
X-Spam-Status: No, score=-5.353 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FREEMAIL_FROM=0.001, NML_ADSP_CUSTOM_MED=0.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_SOFTFAIL=0.665] autolearn=unavailable autolearn_force=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 2C365bzJxQcT for <ipv6@ietfa.amsl.com>; Wed, 1 Mar 2017 11:38:06 -0800 (PST)
Received: from oxalide-out.extra.cea.fr (oxalide-out.extra.cea.fr [132.168.224.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D08E1129676 for <ipv6@ietf.org>; Wed, 1 Mar 2017 11:30:19 -0800 (PST)
Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21]) by oxalide.extra.cea.fr (8.15.2/8.15.2/CEAnet-Internet-out-2.4) with ESMTP id v21JUHWN031223 for <ipv6@ietf.org>; Wed, 1 Mar 2017 20:30:17 +0100
Received: from pisaure.intra.cea.fr (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id C8F4620BC3E for <ipv6@ietf.org>; Wed, 1 Mar 2017 20:30:17 +0100 (CET)
Received: from muguet2.intra.cea.fr (muguet2.intra.cea.fr [132.166.192.7]) by pisaure.intra.cea.fr (Postfix) with ESMTP id B60C02099DC for <ipv6@ietf.org>; Wed, 1 Mar 2017 20:30:17 +0100 (CET)
Received: from [10.8.34.184] (is227335.intra.cea.fr [10.8.34.184]) by muguet2.intra.cea.fr (8.15.2/8.15.2/CEAnet-Intranet-out-1.4) with ESMTP id v21JUHdi031004 for <ipv6@ietf.org>; Wed, 1 Mar 2017 20:30:17 +0100
Subject: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt - /63 and /65 RAs on linux
To: ipv6@ietf.org
References: <20170223134026.GI5069@gir.theapt.org> <58AF6429.70809@foobar.org> <902276E9-0521-4D4E-A42B-C45E64763896@google.com> <58AF726A.3040302@foobar.org> <F7C230DE-4759-4B78-ABF2-6799F85B3C62@google.com> <58B014F6.2040400@foobar.org> <6DA95097-8730-4353-A0C9-3EB4719EA891@google.com> <CAN-Dau0s04c=RV0Y8AGaxBPFui41TWPTB+5o0K2Lj-iah0An1w@mail.gmail.com> <CAL9jLaYirty22iGiEjEaYq3_KA1FZhxBTOBWuFOXQ9C-WPd5xQ@mail.gmail.com> <CAN-Dau0n6oFm538XdJOcuO1yg92BCDD3mBu5YfBVm_+g-gtcKA@mail.gmail.com> <CAL9jLaYO=uYgVfSZ0SoSe0SujJ1xgwEKE8WLzo_keJHywgXTtg@mail.gmail.com> <CAN-Dau1vJV5O_Ythp6THkAu4-YZXV82Upny1V+ybbjCVZQQX=A@mail.gmail.com> <27cce319-18ac-5c0e-3497-af92344f0062@gmail.com> <de4988be-6031-08d9-84ce-21c3fa4f9bc9@gmail.com> <98401ef7-cf41-b4a0-4d11-a7d840181bd0@gmail.com> <1047f5fc-ae40-be52-6bab-27f31fe5e045@gmail.com> <9a94feac-8d59-b153-d41c-04fc371e4db4@gmail.com> <CAO42Z2z7v4gDk91b6Of-1sczV88m3B9kzn0MeJU_VBJ416k6Ww@mail.gmail.com> <ae35b45a-0398-840f-fc0d-1f64dd2fcc58@gmail.com>
From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Message-ID: <37851ee3-03be-8bee-6190-f4d28df86305@gmail.com>
Date: Wed, 1 Mar 2017 20:30:24 +0100
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1
MIME-Version: 1.0
In-Reply-To: <ae35b45a-0398-840f-fc0d-1f64dd2fcc58@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/Z6nllmOcuAq41K_tiGMoE2OksTU>
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: Wed, 01 Mar 2017 19:38:07 -0000

Let me add one more point here I just tried:

Le 28/02/2017 à 13:04, Alexandre Petrescu a écrit :
[...]
> Finally, there is no advice of what bits to put between fe80:: and a
> 64bit the Interface ID - zeros or ones?  linux says it's a fe80::/64
> and IIRC BSD says it's a fe80::/10.  The routing entries based on
> that can make for interop problems.

For information, today on linux a /65 RA is called "illegal" and a /63
RA makes a Host to _not_ configure an address.  What linux wants is a 64
and nothing else.  This is not normal, and it's not programmer's fault.

Alex