Re: I-D Action: draft-ietf-6man-dad-proxy-07.txt

Jean-Michel Combes <jeanmichel.combes@gmail.com> Mon, 15 April 2013 11:30 UTC

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In-Reply-To: <1365545491.28058.311.camel@karl>
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Date: Mon, 15 Apr 2013 13:30:53 +0200
Message-ID: <CAA7e52ocmpvv3GG3r_=ZjMg-mi1PRswUkdtUbwesm3iXtXJf1A@mail.gmail.com>
Subject: Re: I-D Action: draft-ietf-6man-dad-proxy-07.txt
From: Jean-Michel Combes <jeanmichel.combes@gmail.com>
To: Karl Auer <kauer@biplane.com.au>
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Hi Karl,

in a VLAN N:1 architecture with "split-horizon" forwarding scheme, all IP
flows are forwarded through the BNG. So, the BNG is able to see them.

Best regards,

JMC.


2013/4/10 Karl Auer <kauer@biplane.com.au>

> On Tue, 2013-04-09 at 10:48 -0700, internet-drafts@ietf.org wrote:
> > Abstract:
> >    The document describes a proxy based mechanism [...]
> >    Based on the DAD signalling, the first hop router
> >    stores in a Binding Table all known IPv6 addresses used on a point-
> >    to-multipoint domain (e.g.  VLAN).  When a node performs DAD for an
> >    address already used by another node, the first hop router replies
> >    instead of this last one.
>
> Coming late to this but - DAD NS frames are sent to solicited node
> multicast addresses, so how is the first hop router seeing them?
> IPv6-aware (MLD snooping) switches won't forward the DAD NS frames
> except to members of the SNM group...?
>
> What am I missing?
>
> Regards, K.
>
> --
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