Re: [Softwires] Proposed Unified Address Mapping for encapsulation and double-translation

GangChen <phdgang@gmail.com> Sat, 08 October 2011 03:22 UTC

Return-Path: <phdgang@gmail.com>
X-Original-To: softwires@ietfa.amsl.com
Delivered-To: softwires@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CBBF721F8B2A for <softwires@ietfa.amsl.com>; Fri, 7 Oct 2011 20:22:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.408
X-Spam-Level:
X-Spam-Status: No, score=-3.408 tagged_above=-999 required=5 tests=[AWL=-0.109, BAYES_00=-2.599, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_LOW=-1]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id S3DuzaNBHBK5 for <softwires@ietfa.amsl.com>; Fri, 7 Oct 2011 20:22:50 -0700 (PDT)
Received: from mail-wy0-f172.google.com (mail-wy0-f172.google.com [74.125.82.172]) by ietfa.amsl.com (Postfix) with ESMTP id 1854F21F8B21 for <softwires@ietf.org>; Fri, 7 Oct 2011 20:22:49 -0700 (PDT)
Received: by wyg24 with SMTP id 24so1565017wyg.31 for <softwires@ietf.org>; Fri, 07 Oct 2011 20:26:04 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=ETJBpvzLh7FB6lM/xjaXp1abO7Ha5mYh4bV+oJeH7qQ=; b=gBYboj4gysekVczI/yGKMjf+fu1QT/IDBIjU0h5UB0HU765zyRaf+1DTtx0Kxme45w wVyEv1VSAIpY6wLdMgvp5DfeqHeBssikWRKVpGhdGV3aB3WvpoW1sz2KjljkV6gYIVBL h61tVX93Cdn/3SnYSx4qWDruyamWLGtskVjVk=
MIME-Version: 1.0
Received: by 10.216.159.1 with SMTP id r1mr1728482wek.18.1318044364622; Fri, 07 Oct 2011 20:26:04 -0700 (PDT)
Received: by 10.180.84.161 with HTTP; Fri, 7 Oct 2011 20:26:04 -0700 (PDT)
In-Reply-To: <02D4DC4B-EB93-42C6-AE9F-135B0C598F8E@laposte.net>
References: <F259BF79-B3C9-4434-AAC4-9F84B8D9A0FA@laposte.net> <CAM+vMER2CBTpYOhcu63th7AJejCJ4sv0_GqeiZmwHVHEEeW1WA@mail.gmail.com> <0C2B5428-98D4-4F67-B18D-9ACA946A68E7@laposte.net> <CAM+vMEQ4=xxgBgoqDAcd=t_Yx=j+wJm-rP-haJwdSxRSOv5sVQ@mail.gmail.com> <02D4DC4B-EB93-42C6-AE9F-135B0C598F8E@laposte.net>
Date: Sat, 08 Oct 2011 11:26:04 +0800
Message-ID: <CAM+vMEQipeJ2qnnVw9JcQ2U9OUxV5FYu=PDKn413B9cFXU290w@mail.gmail.com>
From: GangChen <phdgang@gmail.com>
To: Rémi Després <despres.remi@laposte.net>
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
Cc: Softwires-wg <softwires@ietf.org>
Subject: Re: [Softwires] Proposed Unified Address Mapping for encapsulation and double-translation
X-BeenThere: softwires@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: softwires wg discussion list <softwires.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/softwires>, <mailto:softwires-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/softwires>
List-Post: <mailto:softwires@ietf.org>
List-Help: <mailto:softwires-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/softwires>, <mailto:softwires-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 08 Oct 2011 03:22:50 -0000

Hello Remi,

2011/10/6, Rémi Després <despres.remi@laposte.net>:
>
> Le 6 oct. 2011 à 06:01, GangChen a écrit :
>
>>
>> I understand such encoded information helps deriving a shared IPv4
>> address. However, I guess it's not necessary to dig up such
>> information if we only take traffic contronl on IPv6 data plane (as I
>> said below)
>
> I agree that it is "not necessary" to exploit this field to filter IPv4
> traffic.
>
> Yet it MAY be used to facilitate configuration of traffic control parameters
> (IPv4 addresses are expressed in clear form instead of having to be derived
> with the help of mapping rules).

May I clarify whether such traffic control parameters are for IPv4 or
IPv6 data plane?

Many thanks

Gang