Re: [secdir] Secdir review of draft-ietf-isis-trill

Donald Eastlake <d3e3e3@gmail.com> Mon, 20 December 2010 18:41 UTC

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From: Donald Eastlake <d3e3e3@gmail.com>
Date: Mon, 20 Dec 2010 13:43:03 -0500
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To: Sam Hartman <hartmans-ietf@mit.edu>
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Cc: Erik Nordmark <nordmark@acm.org>, secdir@ietf.org, draft-ietf-isis-trill@tools.ietf.org, ietf@ietf.org
Subject: Re: [secdir] Secdir review of draft-ietf-isis-trill
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Hi,

On Mon, Dec 20, 2010 at 11:42 AM, Sam Hartman <hartmans-ietf@mit.edu> wrote:
>>>>>> "Radia" == Radia Perlman <radiaperlman@gmail.com> writes:
>
>    Radia> No objections.  Radia
>
>
> Can I get someone to confirm that the text in the proposed sentences is
> substantially true?
> I think so but I'm not an IS-IS expert.

LSPs have sequences number, etc., and are idempotent. I think only
Hellos have the potential replay Denial of Service problem. So I would
suggest changing to:

"Even when the IS-IS
authentication is used, replays of Hello packets can create
denial-of-service conditaions; see RFC 6039 for details. These issues
are similar in scope to those discussed in section 6.2 of
draft-ietf-trill-rbridge-protocol, and the same mitigations may apply."

Thanks,
Donald