Re: [MEXT] Last Call: draft-ietf-mext-nemo-pd (DHCPv6 Prefix Delegation for NEMO) to Proposed Standard

Hesham Soliman <hesham@elevatemobile.com> Fri, 10 September 2010 09:48 UTC

Return-Path: <hesham@elevatemobile.com>
X-Original-To: ietf@core3.amsl.com
Delivered-To: ietf@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BFF8B3A6A35; Fri, 10 Sep 2010 02:48:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.366
X-Spam-Level:
X-Spam-Status: No, score=-2.366 tagged_above=-999 required=5 tests=[AWL=0.233, BAYES_00=-2.599]
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 hv+cldSQHzjP; Fri, 10 Sep 2010 02:48:21 -0700 (PDT)
Received: from smtp-2.servers.netregistry.net (smtp.netregistry.net [202.124.241.204]) by core3.amsl.com (Postfix) with ESMTP id ECF3E3A6A30; Fri, 10 Sep 2010 02:48:20 -0700 (PDT)
Received: from [203.219.211.243] (helo=[192.168.0.6]) by smtp-2.servers.netregistry.net protocol: esmtpa (Exim 4.69 #1 (Debian)) id 1Ou0Ds-0004QR-Dm; Fri, 10 Sep 2010 19:48:44 +1000
User-Agent: Microsoft-Entourage/12.26.0.100708
Date: Fri, 10 Sep 2010 19:48:43 +1000
Subject: Re: [MEXT] Last Call: draft-ietf-mext-nemo-pd (DHCPv6 Prefix Delegation for NEMO) to Proposed Standard
From: Hesham Soliman <hesham@elevatemobile.com>
To: Alexandru Petrescu <alexandru.petrescu@gmail.com>
Message-ID: <C8B03C1B.14FA0%hesham@elevatemobile.com>
Thread-Topic: [MEXT] Last Call: draft-ietf-mext-nemo-pd (DHCPv6 Prefix Delegation for NEMO) to Proposed Standard
Thread-Index: ActQzVqtpaJYY2RZ00u1zSgWskr61w==
In-Reply-To: <4C89FDA8.5070908@gmail.com>
Mime-version: 1.0
Content-type: text/plain; charset="US-ASCII"
Content-transfer-encoding: 7bit
X-Authenticated-User: hesham@elevatemobile.com
X-Mailman-Approved-At: Fri, 10 Sep 2010 12:04:16 -0700
Cc: IETF Discussion <ietf@ietf.org>, mext <mext@ietf.org>
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/ietf>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 10 Sep 2010 09:48:22 -0000

>> 
>> =>  Who cares, specify it in your product description. The IETF
>> doesn't specify how to build products.
> 
> Hmm... to me it is a very IETF sensitive issue the Router vs Host.  For
> example, an ND spec says distinctively what a Host and what a Router
> does, e.g. a Host does not respond to Router Solicitation.

=> Yes and it does so on a per-interface basis, not on a per-machine basis.

Hesham

> 
> In this same way a Router should dynamically be able to obtain a default
> route, in addition to a Host doing so.
> 
> The products sold are neither Hosts nor Routers - they're BFRs, servers,
> desktops, tablets, laptops.
> 
>> If you want to solve this with protocols then use routing protocols.
>> Of course you need to solve the security issues when the MR moves.
> 
> But SLAAC (what you call ND) is not a routing protocol yet does deliver
> a default route, only to Hosts.  DHCPv6 is not a routing protocol either
> but does not deliver a default route neither to Hosts nor to Routers.
> 
> (I am not clear whether the DHCPv6 spec forbids delivery of a default
>   route; or allows; I have to check; the implementation does not.)
> 
>> I am not
>>> sure how clean is it anyways to disregard that 'M' bit of RA
>>> anyways.
>>> 
>>> The alternative to using routing protocols (OSPF?) to communicate a
>>> default route to the MR - I am not sure how this could work, never
>>> seen it in practice.
>> 
>> =>  For  a good reason! You need to work out trust across domains.
> 
> Probably...
> 
> Alex
> 
>> 
>> Hesham
>> 
>>> 
>>> Alex
>>> 
>>> 
>>>> 
>>>> Hesham
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
>> 
> 
>