IETF Logo Mail Archive

Re: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07

"Rajiv Asati (rajiva)" <rajiva@cisco.com> Thu, 01 May 2014 19:03 UTC

Return-Path: <rajiva@cisco.com>
X-Original-To: softwires@ietfa.amsl.com
Delivered-To: softwires@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7DC311A6FC7 for <softwires@ietfa.amsl.com>; Thu, 1 May 2014 12:03:28 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -15.152
X-Spam-Level:
X-Spam-Status: No, score=-15.152 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham
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 69bPknVagZzR for <softwires@ietfa.amsl.com>; Thu, 1 May 2014 12:03:27 -0700 (PDT)
Received: from rcdn-iport-8.cisco.com (rcdn-iport-8.cisco.com [173.37.86.79]) by ietfa.amsl.com (Postfix) with ESMTP id 155121A6FAE for <softwires@ietf.org>; Thu, 1 May 2014 12:03:27 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2123; q=dns/txt; s=iport; t=1398971005; x=1400180605; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=69Tnf0Yb5WSAow/ixOIoa4E39t31SAuww5Whfi/dibA=; b=hBiDtjcOuyOYIP86SI8OqsHOxkgxifCXi7F8VyMnfRnu+l62V30xX5WX 50nFw6vzynLvZOtoLosEBRSbtkR2Ga/Di06oB7xvsAf/ctE+m2U+lK81l XCBCOLCXMBhQGmLnTE7qYo1euCUoEaFI6T84Z/6mYDd/8bBwYrCHRvgRf c=;
X-IronPort-AV: E=Sophos;i="4.97,966,1389744000"; d="scan'208";a="321782546"
Received: from rcdn-core-1.cisco.com ([173.37.93.152]) by rcdn-iport-8.cisco.com with ESMTP; 01 May 2014 19:03:25 +0000
Received: from xhc-rcd-x06.cisco.com (xhc-rcd-x06.cisco.com [173.37.183.80]) by rcdn-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id s41J3Pqr008118 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 1 May 2014 19:03:25 GMT
Received: from xmb-rcd-x06.cisco.com ([169.254.6.41]) by xhc-rcd-x06.cisco.com ([173.37.183.80]) with mapi id 14.03.0123.003; Thu, 1 May 2014 14:03:24 -0500
From: "Rajiv Asati (rajiva)" <rajiva@cisco.com>
To: Ian Farrer <ianfarrer@gmx.com>, Ole Troan <ot@cisco.com>
Thread-Topic: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07
Thread-Index: AQHPX5V31a/YKtgK6kqjO13TdMKp85sinGiAgAmVOQA=
Date: Thu, 01 May 2014 19:03:24 +0000
Message-ID: <CF805BE7.189FF9%rajiva@cisco.com>
References: <53422B8F.2020109@ericsson.com> <37A243DD-5249-4070-AB19-6DFFCFE17AA7@gmx.com> <DC98AF70-DBF1-48AD-8699-2FC4E645FF40@cisco.com> <C3B32B71-79EE-408F-A92C-D40021DC9A5A@gmx.com> <92E51E75-2914-421F-B222-7478EC3D6A02@cisco.com> <5A8EDE2F-EA28-4991-B94F-A998701FD662@gmx.com> <6C83D36F-7895-4994-A141-9B425EB7BBEA@cisco.com> <C11A9FE2-184A-49DD-BFFF-779411B310E8@gmx.com>
In-Reply-To: <C11A9FE2-184A-49DD-BFFF-779411B310E8@gmx.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/14.3.9.131030
x-originating-ip: [10.82.218.19]
Content-Type: text/plain; charset="Windows-1252"
Content-ID: <B81E996231494A4E8E7CC36A542EDFFD@emea.cisco.com>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: http://mailarchive.ietf.org/arch/msg/softwires/IAzj1ndWPRHfdpVT8UfSrPGe0ug
Cc: Softwires WG <softwires@ietf.org>, Yong Cui <cuiyong@tsinghua.edu.cn>
Subject: Re: [Softwires] Working group last call for draft-ietf-softwire-map-dhcp-07
X-BeenThere: softwires@ietf.org
X-Mailman-Version: 2.1.15
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: Thu, 01 May 2014 19:03:28 -0000

UmmŠthat doesn¹t cut it either, since softwire node will always have to
formulate the 32-bit IPv4 address even if < /32 is conveyed.  Also,
Software interface is not defined anywhere in this document.

 How about the following -


-- 
Cheers,
Rajiv Asati
Distinguished Engineer, Cisco





-----Original Message-----
From: Ian Farrer <ianfarrer@gmx.com>
Date: Friday, April 25, 2014 at 8:42 AM
To: Ole Troan <ot@cisco.com>
Cc: Softwires-wg list <softwires@ietf.org>, Yong Cui
<cuiyong@tsinghua.edu.cn>
Subject: Re: [Softwires] Working group last call for
draft-ietf-softwire-map-dhcp-07

>Hi Ole,
>
>So the whole paragraph would read:
>
>When receiving the Port Parameters option with an explicit PSID, the
>client MUST use this explicit PSID in configuring its softwire interface.
>The Port Parameters option with an explicit PSID MUST be discarded
>if the softwire node isn't configured with a full IPv4 address (e.g. IPv4
>prefix).
>
>If so, fine with me.
>
>Cheers,
>Ian
>
>On 24 Apr 2014, at 10:15, Ole Troan <ot@cisco.com> wrote:
>
>> Ian,
>> 
>>> When receiving the Port Parameters option with an explicit PSID, the
>>> client MUST use this explicit PSID in configuring its softwire
>>>interface.
>>> If the client¹s IPv4 address (configured via a separate sub-option)
>>> is not 32 bit-long, the Port Parameters option MUST be discarded.
>>> For MAP-E and MAP-T clients, the formula for the address length check
>>> is "prefix4-len + ea-len = 32² and serves to ensure that  the explicit
>>> PSID is only applied to configurations with a completely formed IPv4
>>>address.
>> 
>> I don't like the implications that IPv4 address can be != 32 bits. ;-)
>> 
>> just simply:
>> 
>> The Port Parameters option with an explicit PSID MUST be discarded if
>>the softwire node isn't configured with a full IPv4 address (e.g. IPv4
>>prefix).
>> 
>> ?
>> 
>> cheers,
>> Ole
>> 
>
>_______________________________________________
>Softwires mailing list
>Softwires@ietf.org
>https://www.ietf.org/mailman/listinfo/softwires

v2.23.0 | Report a Bug | By Email