Re: [v6ops] DHCPv6/SLAAC Make Hosts Confusing-//RE: new draft: draft-liu-bonica-v6ops-dhcpv6-slaac-problem

Mark ZZZ Smith <markzzzsmith@yahoo.com.au> Tue, 22 October 2013 19:17 UTC

Return-Path: <markzzzsmith@yahoo.com.au>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D80CD21E8093 for <v6ops@ietfa.amsl.com>; Tue, 22 Oct 2013 12:17:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.499
X-Spam-Level:
X-Spam-Status: No, score=-0.499 tagged_above=-999 required=5 tests=[AWL=1.600, BAYES_00=-2.599, FROM_LOCAL_NOVOWEL=0.5]
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 BITKi0lHpPSh for <v6ops@ietfa.amsl.com>; Tue, 22 Oct 2013 12:17:39 -0700 (PDT)
Received: from nm2-vm1.bullet.mail.bf1.yahoo.com (nm2-vm1.bullet.mail.bf1.yahoo.com [98.139.213.158]) by ietfa.amsl.com (Postfix) with ESMTP id 38E9121F9DFC for <v6ops@ietf.org>; Tue, 22 Oct 2013 12:16:47 -0700 (PDT)
Received: from [98.139.212.144] by nm2.bullet.mail.bf1.yahoo.com with NNFMP; 22 Oct 2013 19:16:46 -0000
Received: from [98.139.212.227] by tm1.bullet.mail.bf1.yahoo.com with NNFMP; 22 Oct 2013 19:16:46 -0000
Received: from [127.0.0.1] by omp1036.mail.bf1.yahoo.com with NNFMP; 22 Oct 2013 19:16:46 -0000
X-Yahoo-Newman-Property: ymail-3
X-Yahoo-Newman-Id: 584531.17731.bm@omp1036.mail.bf1.yahoo.com
Received: (qmail 56411 invoked by uid 60001); 22 Oct 2013 19:16:46 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com.au; s=s1024; t=1382469406; bh=30PxgPGUW8xCIZoWU4iILvPWSA4dE+FqgLhOkaMVYYw=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=Vjsk43JGvXt4lEjeyzPLT3o7yRtIFhLDdefDlp0mlluhOJFF4OxA0WtJmp1tsvrvVkX3zpL+5X/DnfoPX2C36tphZXmQt+4VY8osq56AbKIvaZmNrd0uGkzr73HHgF3C0NOK+2o2zIQay/7YPFmp0a3GUL1C6aOg64l39Hp1tMo=
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=TJkqN836bIO2I+rqkj3h4/FtuxGqgCDzztZBuw0XNlW0eJK9/IOitxbwadhLJsq6FfH1TPsQz7WlZCLdfMZoJ0Sd5CFc0kYdai3Bpo9+cTExu2r0Y3doXXMj/sPrqHA9MJ1HceXn4NrW84GY7FaM74AMy6/bGyArlkNxApf/zgU=;
X-YMail-OSG: MBf_p3YVM1kBomCytqDTzL2DIiq.IMWwI.mItAo0yd0y5Z8 FdhJGxu2VyigutV8isVf.Vk2uEeHRQqjxt2mVlCkQ0yfZ1Lb3Meae3AlcseM zEGUcmsHi4WeeJKBqD4os68VTIWiRxqk.ReGCLPdEi4hTSE_reQSH1aMShbw UKZclZ5W7eYbdvDkTyjrSIBTRagKHCpcOsbexpyXlF7M0WKTeMtUvLVuC7P. Ztkek6jONp9kTvZ9j4bY.VTpMFaeZAGF9E4OxBtXcbnwwsZd_eZ7N0_UXO2N b7yQdtUH_KBpWLPW1BiEleUeJT4oCGOJ5hR6d6UL25rDeW0UBElIBPnQdEof Xt_FUpTPWEYQyVb6GwigwEbBVunaEfpannAkfH9mRv_MA.a5ZPqQKKLBHCNa tir59DsFOrGgqcVprZku2mV88gFuBj_d6M.dd8K5fLqJ9Yb3RD7i1zCxrOYO OUFg7aX2JY8Sh0QIqjJOf1utgLihb7nMSvAYtQ3iZDueBXYCsY44m5m.XQZM ywpOXEUGlIADVJl09Gf43DUbaQZnByq5Yn7kiRbRcWsDz6YrYBEz57Ai6vgI 12WHwxMWO1dpvZr0KVYLYcWCOdATehpUuPIefT_CtXuWNbQ--
Received: from [150.101.221.237] by web142504.mail.bf1.yahoo.com via HTTP; Tue, 22 Oct 2013 12:16:45 PDT
X-Rocket-MIMEInfo: 002.001, Cj5fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo.IEZyb206IE1pa2FlbCBBYnJhaGFtc3NvbiA8c3dtaWtlQHN3bS5wcC5zZT4KPlRvOiBMaXViaW5nIChMZW8pIDxsZW8ubGl1YmluZ0BodWF3ZWkuY29tPiAKPkNjOiAidjZvcHNAaWV0Zi5vcmciIDx2Nm9wc0BpZXRmLm9yZz47ICJkcmFmdC1saXUtYm9uaWNhLXY2b3BzLWRoY3B2Ni1zbGFhYy1wcm9ibGVtQHRvb2xzLmlldGYub3JnIiA8ZHJhZnQtbGl1LWJvbmljYS12Nm9wcy1kaGNwdjYtc2xhYWMtcHJvYmxlbUB0b29scy5pZXRmLm9yZz4gCj4BMAEBAQE-
X-Mailer: YahooMailWebService/0.8.160.587
References: <201310211245.r9LCj0B29668@ftpeng-update.cisco.com> <alpine.DEB.2.02.1310211454090.26825@uplift.swm.pp.se> <8AE0F17B87264D4CAC7DE0AA6C406F453D7CC14B@nkgeml506-mbx.china.huawei.com> <alpine.DEB.2.02.1310221511520.8663@uplift.swm.pp.se>
Message-ID: <1382469405.56346.YahooMailNeo@web142504.mail.bf1.yahoo.com>
Date: Tue, 22 Oct 2013 12:16:45 -0700 (PDT)
From: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
To: Mikael Abrahamsson <swmike@swm.pp.se>, "Liubing \(Leo\)" <leo.liubing@huawei.com>
In-Reply-To: <alpine.DEB.2.02.1310221511520.8663@uplift.swm.pp.se>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
Cc: "v6ops@ietf.org" <v6ops@ietf.org>, "draft-liu-bonica-v6ops-dhcpv6-slaac-problem@tools.ietf.org" <draft-liu-bonica-v6ops-dhcpv6-slaac-problem@tools.ietf.org>
Subject: Re: [v6ops] DHCPv6/SLAAC Make Hosts Confusing-//RE: new draft: draft-liu-bonica-v6ops-dhcpv6-slaac-problem
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
Reply-To: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
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: <http://www.ietf.org/mail-archive/web/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: Tue, 22 Oct 2013 19:17:44 -0000

>________________________________
> From: Mikael Abrahamsson <swmike@swm.pp.se>
>To: Liubing (Leo) <leo.liubing@huawei.com> 
>Cc: "v6ops@ietf.org" <v6ops@ietf.org>rg>; "draft-liu-bonica-v6ops-dhcpv6-slaac-problem@tools.ietf.org" <draft-liu-bonica-v6ops-dhcpv6-slaac-problem@tools.ietf.org> 
>Sent: Wednesday, 23 October 2013 12:13 AM
>Subject: Re: [v6ops] DHCPv6/SLAAC Make Hosts Confusing-//RE: new draft: draft-liu-bonica-v6ops-dhcpv6-slaac-problem
> 
>
>On Tue, 22 Oct 2013, Liubing (Leo) wrote:
>
>>> 2. PIO /64, A=0, M=1, host gets /128 out of on-link /64, can communicate
>>> with other hosts on-link directly.
>
>> [Bing] I'm a little confused about the scenario. A=0 switch SLAAC off, 
>> and host would initial DHCP according M=1, do you mean the DHCP Server 
>> need to be aware of the PIO /64, so that the /128 from dhcp in 
>> accordance with the PIO /64?
>
>Yes. I already do this at home with a Cisco router with built-in DHCPv6 
>IA_NA (and IA_PD) server.
>

Is this saying that the prefix length of the address on host is /128?

If that is the case, as the prefix length in doesn't indicate on-link or off-link status (as RA PIOs do), is there any specific reason for the prefix length the DHCPv6 server hands out to be /128 instead of the subnet's prefix length of /64? 


>-- 
>Mikael Abrahamsson    email: swmike@swm.pp.se
>
>_______________________________________________
>v6ops mailing list
>v6ops@ietf.org
>https://www.ietf.org/mailman/listinfo/v6ops
>
>
>