IETF Logo Mail Archive

Re: Review of draft-ietf-6man-rfc4291bis-06

Fernando Gont <fgont@si6networks.com> Fri, 13 January 2017 19:46 UTC

Return-Path: <fgont@si6networks.com>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A6DAE129DA2; Fri, 13 Jan 2017 11:46:06 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham 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 NgThEzuczR5F; Fri, 13 Jan 2017 11:46:05 -0800 (PST)
Received: from fgont.go6lab.si (fgont.go6lab.si [91.239.96.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 08380129DB0; Fri, 13 Jan 2017 11:46:05 -0800 (PST)
Received: from [192.168.3.95] (142-135-17-190.fibertel.com.ar [190.17.135.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by fgont.go6lab.si (Postfix) with ESMTPSA id 6E08E829B9; Fri, 13 Jan 2017 20:45:59 +0100 (CET)
Subject: Re: Review of draft-ietf-6man-rfc4291bis-06
To: Suresh Krishnan <suresh.krishnan@gmail.com>, Randy Bush <randy@psg.com>
References: <148406593094.22166.2894840062954191477.idtracker@ietfa.amsl.com> <m2fukqbbwv.wl-randy@psg.com> <F6953234-3F85-4E28-9861-433ADD01A490@gmail.com> <m2wpdzhncn.wl-randy@psg.com> <CAN-Dau0Z6aYhitOw8oJ_JQo9N_hzK6yzMe3VosZ7Ch6iV_uaxw@mail.gmail.com> <m2eg07hji4.wl-randy@psg.com> <CA+MHpBq-wvJSGBide1D1zhVvqVGO7+9DDMJ3LLBpsd6VFL16Cg@mail.gmail.com>
From: Fernando Gont <fgont@si6networks.com>
Message-ID: <75eca52d-f908-6933-fd06-f86c2e7cfef2@si6networks.com>
Date: Fri, 13 Jan 2017 16:45:49 -0300
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1
MIME-Version: 1.0
In-Reply-To: <CA+MHpBq-wvJSGBide1D1zhVvqVGO7+9DDMJ3LLBpsd6VFL16Cg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf/hK6vmFIFk4rqevnQbcjhXWShtpw>
Cc: draft-ietf-6man-rfc4291bis.all@ietf.org, Bob Hinden <bob.hinden@gmail.com>, IPv6 List <ipv6@ietf.org>, IETF <ietf@ietf.org>, int-dir@ietf.org
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 13 Jan 2017 19:46:07 -0000

On 01/13/2017 12:55 AM, Suresh Krishnan wrote:
> Hi Randy,
> 
> On Thu, Jan 12, 2017 at 7:49 PM, Randy Bush <randy@psg.com> wrote:
>>>> to be clear, i have no problem with iids being 64-bit.  my issue is with
>>>> unicast globals being classful in 2.4.4.
>>> Randy I take your point, but this supposed conflict isn't new, it's not
>>> introduced in 4291bis, it goes back to RFC3513.
>>
>> i know; and i have pushed back every cm of the way.  it took years to
>> get the other classful insanity, tls/nla, removed.  the old cidr war
>> continues.  this last bit of classfulness (excuse the word) too will
>> pass.
>>
>>> Do you have a suggestion how to change this within the context of
>>> advancing this to Internet Standard?
>>
>> yes.  simply remove the mandatory requirement for classful global
>> unicast addresses.
> 
> I do see your point but I do not feel it is equivalent to classful
> addressing in IPv4. i.e. Looking at the leading X bits does not
> directly determine the IID length.

Isn't that the case for the address block we're currently employing? -
the IID is defined to be 64 bits.


-- 
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