Re: [Softwires] [Softwire] Questions on draft-boucadair-dslite-interco-v4v6-03
"Lee, Yiu" <Yiu_Lee@Cable.Comcast.com> Mon, 22 March 2010 20:03 UTC
Return-Path: <yiu_lee@cable.comcast.com>
X-Original-To: softwires@core3.amsl.com
Delivered-To: softwires@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0EC3D3A6B9E for <softwires@core3.amsl.com>; Mon, 22 Mar 2010 13:03:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.119
X-Spam-Level:
X-Spam-Status: No, score=-1.119 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, DNS_FROM_OPENWHOIS=1.13, HELO_EQ_MODEMCABLE=0.768, HOST_EQ_MODEMCABLE=1.368, HTML_MESSAGE=0.001, MIME_8BIT_HEADER=0.3, MIME_CHARSET_FARAWAY=2.45, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_HI=-8, RCVD_NUMERIC_HELO=2.067]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rFXaLnCkELG1 for <softwires@core3.amsl.com>; Mon, 22 Mar 2010 13:03:49 -0700 (PDT)
Received: from pacdcimo01.cable.comcast.com (PacdcIMO01.cable.comcast.com [24.40.8.145]) by core3.amsl.com (Postfix) with ESMTP id 2AF863A6B62 for <softwires@ietf.org>; Mon, 22 Mar 2010 13:02:53 -0700 (PDT)
Received: from ([24.40.15.92]) by pacdcimo01.cable.comcast.com with ESMTP id 5503620.74911996; Mon, 22 Mar 2010 16:03:06 -0400
Received: from PACDCEXCMB04.cable.comcast.com ([24.40.15.86]) by PACDCEXCSMTP03.cable.comcast.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 22 Mar 2010 16:03:05 -0400
x-mimeole: Produced By Microsoft Exchange V6.5
Received: from 130.129.26.213 ([130.129.26.213]) by PACDCEXCMB04.cable.comcast.com ([24.40.15.86]) via Exchange Front-End Server webmail.comcast.com ([24.40.8.154]) with Microsoft Exchange Server HTTP-DAV ; Mon, 22 Mar 2010 20:03:03 +0000
MIME-Version: 1.0
Content-class: urn:content-classes:message
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha1"; boundary="B_3352118580_581907"
Date: Mon, 22 Mar 2010 16:03:00 -0400
Message-ID: <C7CD4534.2223C%yiu_lee@cable.comcast.com>
In-Reply-To: <327c9c3b1003220728n3db89ea6k788d90339e1334d7@mail.gmail.com>
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator:
Thread-Topic: [Softwires] [Softwire] Questions on draft-boucadair-dslite-interco-v4v6-03
Thread-Index: AcrJ+qwbDh0ovUliDEKydyliJrSJVw==
From: "Lee, Yiu" <Yiu_Lee@Cable.Comcast.com>
To: 孙琼 <bingxuere.mail@gmail.com>, softwires@ietf.org
X-OriginalArrivalTime: 22 Mar 2010 20:03:05.0043 (UTC) FILETIME=[AF1D7230:01CAC9FA]
Subject: Re: [Softwires] [Softwire] Questions on draft-boucadair-dslite-interco-v4v6-03
X-BeenThere: softwires@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: softwires wg discussion list <softwires.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/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: Mon, 22 Mar 2010 20:03:50 -0000
As Med replied in a different email, the CPE is the B4 in the ds-lite draft which performs v4-over-v6 tunnel for v4 packets. No NAT-44 will happen in B4. On 3/22/10 10:28 AM, "孙琼" <bingxuere.mail@gmail.com> wrote: > Hi Boucadair, > > I'm wondering if I have missed something in this draft. I can understand that > in this extended DS-Lite, ICXF is core stateless and it is quite scalable for > core routers. However, since CPEs can send both IPv4 packet and IPv6 packet > to AFTR, it will then include double NAT problem if we have to allocate > private IPv4 address to CPEs. Then what is the advantage of this kind of > DS-Lite vs. NAT666 plus dual stack? > > Thank you very much. > > Best regards > > Qiong SUN > > > _______________________________________________ > Softwires mailing list > Softwires@ietf.org > https://www.ietf.org/mailman/listinfo/softwires