Re: [v6ops] DAD again [was: draft-ietf-v6ops-host-addr-availability discussion]

"Hemant Singh (shemant)" <shemant@cisco.com> Mon, 16 November 2015 19:51 UTC

Return-Path: <shemant@cisco.com>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 062BC1A88D5 for <v6ops@ietfa.amsl.com>; Mon, 16 Nov 2015 11:51:35 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -15.086
X-Spam-Level:
X-Spam-Status: No, score=-15.086 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=-0.585, 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 JAth9R1_AV5f for <v6ops@ietfa.amsl.com>; Mon, 16 Nov 2015 11:51:34 -0800 (PST)
Received: from rcdn-iport-7.cisco.com (rcdn-iport-7.cisco.com [173.37.86.78]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F0AF51A88D0 for <v6ops@ietf.org>; Mon, 16 Nov 2015 11:51:33 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=755; q=dns/txt; s=iport; t=1447703493; x=1448913093; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=z9I6cJNyku4DEhJHv/07y4cN7z8QuptBx+i3g+xB6FY=; b=bHLtiSVwGzou17R07HETVEJPNRD3IbxoICb0A001lfAH1jE1uroB6ag2 vfWsbu2mhNbm2LTDV6PJAvs0+xdQFXNF/EVwNzZVhQjfxy9XldviPeqMO zAcNSDVLYadXENRr7iUhIFAO7bvjlazAD4fyIon3c4tamd23NCRLI4GcU s=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0AVAgDIMkpW/4YNJK1dgzuBQga+WgENgWWGEAKBRzgUAQEBAQEBAYEKhDQBAQEEOj8MBAIBCBEEAQEfCQcyFAkIAgQBDQUIiCa7KwEBAQEBAQEBAQEBAQEBAQEBAQEBARiLUok5AQSWSAGNH5xLAR8BAUKCER2BVnIBhAKBBwEBAQ
X-IronPort-AV: E=Sophos;i="5.20,304,1444694400"; d="scan'208";a="45393526"
Received: from alln-core-12.cisco.com ([173.36.13.134]) by rcdn-iport-7.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 16 Nov 2015 19:51:33 +0000
Received: from XCH-RTP-005.cisco.com (xch-rtp-005.cisco.com [64.101.220.145]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id tAGJpWJd014718 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 16 Nov 2015 19:51:33 GMT
Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-005.cisco.com (64.101.220.145) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Mon, 16 Nov 2015 14:51:32 -0500
Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Mon, 16 Nov 2015 14:51:32 -0500
From: "Hemant Singh (shemant)" <shemant@cisco.com>
To: "Templin, Fred L" <Fred.L.Templin@boeing.com>, "Mukom Akong T." <mukom.tamon@gmail.com>
Thread-Topic: [v6ops] DAD again [was: draft-ietf-v6ops-host-addr-availability discussion]
Thread-Index: AQHRFohEbga31qC+rEetrILg3VHRBZ6LRgsAgAa8AYCAAnb/AIAIkUDwgAI3wAD//+CA4A==
Date: Mon, 16 Nov 2015 19:51:32 +0000
Message-ID: <e7bcbba7047f44aba6a355da51f3265b@XCH-RTP-005.cisco.com>
References: <8D175A1F-B1AE-44B4-838E-1C853B6C937D@cisco.com> <2134F8430051B64F815C691A62D9831832F391A7@XCH-BLV-504.nw.nos.boeing.com> <CAKD1Yr15C-uoxUw0kgWO-d=LmUK8qWGLS7vt+22W+k8xXtDY+g@mail.gmail.com> <2134F8430051B64F815C691A62D9831832F393F1@XCH-BLV-504.nw.nos.boeing.com> <2134F8430051B64F815C691A62D9831832F3941D@XCH-BLV-504.nw.nos.boeing.com> <563811DF.9020603@gmail.com> <2134F8430051B64F815C691A62D9831832F394F7@XCH-BLV-504.nw.nos.boeing.com> <563821EB.3040508@gmail.com> <2134F8430051B64F815C691A62D9831832F39A09@XCH-BLV-504.nw.nos.boeing.com> <56392B6D.8030703@gmail.com> <2134F8430051B64F815C691A62D9831832F3A88F@XCH-BLV-504.nw.nos.boeing.com> <2134F8430051B64F815C691A62D9831832F3A97F@XCH-BLV-504.nw.nos.boeing.com> <CAHDzDLBG8xZxUFsAuN-7WuruZcULF1QAS_ch=gD5rGQMZfskow@mail.gmail.com> <2134F8430051B64F815C691A62D9831832F3E8B0@XCH-BLV-504.nw.nos.boeing.com> <831e60e2122547bc8bdf167e76f664c9@XCH-RTP-005.cisco.com> <2134F8430051B64F815C691A62D9831832F4CE72@XCH-BLV-504.nw.nos.boeing.com>
In-Reply-To: <2134F8430051B64F815C691A62D9831832F4CE72@XCH-BLV-504.nw.nos.boeing.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [10.131.78.35]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: <http://mailarchive.ietf.org/arch/msg/v6ops/2PM0nvXJ8wpbsfhCzujoXoSEgHc>
Cc: "v6ops@ietf.org" <v6ops@ietf.org>
Subject: Re: [v6ops] DAD again [was: draft-ietf-v6ops-host-addr-availability discussion]
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Nov 2015 19:51:35 -0000

Fred,

-----Original Message-----
From: Templin, Fred L [mailto:Fred.L.Templin@boeing.com] 
Sent: Monday, November 16, 2015 11:42 AM
To: Hemant Singh (shemant); Mukom Akong T.
Cc: v6ops@ietf.org
Subject: RE: [v6ops] DAD again [was: draft-ietf-v6ops-host-addr-availability discussion]

>- Node N receives a /64 prefix delegation for prefix P over interface eth0.
>- N assigns P to the lo interface as a /64 route. This is done to black-hole
>   unused portions of P.
>- N configures address A from prefix P, and assigns it to eth0.

If A from prefix P is assigned to eth0, we have violated rfc3633 which says to not assign any IPv6 address on the port on which the node received the PD from.  Did I miss anything?

Hemant