Re: Pseudorandom Flow Labels

Fernando Gont <fernando@gont.com.ar> Thu, 07 April 2011 08:18 UTC

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Date: Thu, 07 Apr 2011 05:20:19 -0300
From: Fernando Gont <fernando@gont.com.ar>
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: Pseudorandom Flow Labels
References: <BD901061-96AC-4915-B7CE-2BC1F70861A5@castlepoint.net> <201104052036.p35KaoHV019253@cichlid.raleigh.ibm.com> <4D9CAF52.9050805@gont.com.ar> <87F2B923-3FC6-4879-8C81-B9C283AC5EA0@castlepoint.net> <4D9CE62C.4070804@gont.com.ar> <4D9D6898.4090502@gmail.com>
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Cc: Thomas Narten <narten@us.ibm.com>, 6man List <ipv6@ietf.org>
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On 07/04/2011 04:32 a.m., Brian E Carpenter wrote:
> Setting the flow label by calling random() cannot be a stateless
> method - it would mean storing the value for use on future packets
> of the same flow. We need a stateless method.

Oops, you're right. (Although for FLs set by end nodes this shouldn't
matter much)

Anyway, you have two stateless methods in
draft-gont-6man-flowlabel-security.... :-)

Which raises the question ;-) about whether we should work on this I-D.
FWIW, IIRC the wg had been polled about adoption of this document as a
wg item, but I think only one folk (you?) responded.

Thanks!

Best regards,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@acm.org
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1