Re: problem statement [was Re: New Version Notification for draft-hinden-ipv4flag-00.txt]

Ole Troan <otroan@employees.org> Tue, 21 November 2017 11:39 UTC

Return-Path: <otroan@employees.org>
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 2D36212946F for <ipv6@ietfa.amsl.com>; Tue, 21 Nov 2017 03:39:38 -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, 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 8nqVaxrAiMSl for <ipv6@ietfa.amsl.com>; Tue, 21 Nov 2017 03:39:36 -0800 (PST)
Received: from accordion.employees.org (accordion.employees.org [198.137.202.74]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7937D12946E for <ipv6@ietf.org>; Tue, 21 Nov 2017 03:39:36 -0800 (PST)
Received: from h.hanazo.no (219.103.92.62.static.cust.telenor.com [62.92.103.219]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by accordion.employees.org (Postfix) with ESMTPSA id 896E22D5104; Tue, 21 Nov 2017 11:39:34 +0000 (UTC)
Received: from [IPv6:::1] (localhost [IPv6:::1]) by h.hanazo.no (Postfix) with ESMTP id 98FB2200CE08BA; Tue, 21 Nov 2017 12:39:31 +0100 (CET)
From: Ole Troan <otroan@employees.org>
Message-Id: <B8EC63CA-CCD7-4124-A9A5-1A12C65D70F8@employees.org>
Content-Type: multipart/signed; boundary="Apple-Mail=_B5AD5BD3-D45C-4988-8B5C-3F3C7376A58B"; protocol="application/pgp-signature"; micalg=pgp-sha512
Mime-Version: 1.0 (Mac OS X Mail 11.1 \(3445.4.7\))
Subject: Re: problem statement [was Re: New Version Notification for draft-hinden-ipv4flag-00.txt]
Date: Tue, 21 Nov 2017 12:39:30 +0100
In-Reply-To: <alpine.DEB.2.20.1711210647151.32099@uplift.swm.pp.se>
Cc: Nick Hilliard <nick@foobar.org>, 6man WG <ipv6@ietf.org>
To: Mikael Abrahamsson <swmike@swm.pp.se>
References: <151090059151.22321.3357672601322845792.idtracker@ietfa.amsl.com> <E838C63E-7612-4AA4-9375-854C184D699E@gmail.com> <CAFU7BAQKoWPcEFQZgU3k_d0gUL4en6d2pyNq1V4RMNZ6HrSG8w@mail.gmail.com> <649be36e-5006-7688-448f-bc2794d6a39c@gmail.com> <CAKD1Yr3WC+vwL_=0PeiJ_D85NqFVTCkb8c83x-ZtGhAbSELGMA@mail.gmail.com> <5A119443.2030108@foobar.org> <CAFU7BASwgLfkO-4kk9-vba_P+jmcFHD5+Hy_7b3cnNkOSv30wg@mail.gmail.com> <CAKD1Yr3pKk22Hkxy4_8YMZYiA4Wwp=6JzdRDKFGdTY1gf=ntfA@mail.gmail.com> <alpine.DEB.2.20.1711200848390.32099@uplift.swm.pp.se> <5A12FBE4.9030101@foobar.org> <alpine.DEB.2.20.1711210647151.32099@uplift.swm.pp.se>
X-Mailer: Apple Mail (2.3445.4.7)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/1IewfODmeVnjTbHYC4mTpNz3jjI>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.22
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: Tue, 21 Nov 2017 11:39:38 -0000

We might consider disabling IPv4 on a network in the same fashion that we did it for AppleTalk, Apollo Domain, Banyan VINES, DECNet, CLNS, XNS, IPX...

This isn't a new problem.

Ole

> On 21 Nov 2017, at 06:49, Mikael Abrahamsson <swmike@swm.pp.se>; wrote:
> 
> On Mon, 20 Nov 2017, Nick Hilliard wrote:
> 
>> It comes down where in your stack you want to put your hacks.  A sentry
> 
> Indeed. And I'd rather put this hack in IPv6, as it requires adding code to configure and send an additional RA option compared to requiring a complete IPv4 stack and DHCPv4 code to send some option there.
> 
> In 5-10 years, I might not want an IPv4 stack in a lot of network equipment.
> 
> --
> Mikael Abrahamsson    email: swmike@swm.pp.se
> 
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------