Re: [secdir] Routing loop attacks using IPv6 tunnels

Brian E Carpenter <brian.e.carpenter@gmail.com> Fri, 11 September 2009 23:05 UTC

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Date: Sat, 12 Sep 2009 11:05:37 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: "Templin, Fred L" <Fred.L.Templin@boeing.com>
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Cc: Gabi Nakibly <gnakibly@yahoo.com>, Christian Huitema <huitema@microsoft.com>, v6ops <v6ops@ops.ietf.org>, ipv6@ietf.org, secdir@ietf.org
Subject: Re: [secdir] Routing loop attacks using IPv6 tunnels
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On 2009-09-12 09:13, Templin, Fred L wrote:

(much text deleted)

> Otherwise, the best solution IMHO
> would be to allow only routers (and not hosts) on the
> virtual links. 

This was of course the original intention for 6to4, so
that any misconfiguration issues could be limited to presumably
trusted staff and boxes. Unfortunately, reality has turned out
to be different, with host-based automatic tunnels becoming
popular.

     Brian