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Re: [Spud] [Privsec-program] Detecting and Defeating TCP/IP Hypercookie Attacks

Eliot Lear <lear@cisco.com> Mon, 01 August 2016 22:02 UTC

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To: Tom Herbert <tom@herbertland.com>, Christian Huitema <huitema@microsoft.com>
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From: Eliot Lear <lear@cisco.com>
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Date: Tue, 02 Aug 2016 00:02:55 +0200
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Cc: spud <spud@ietf.org>, Mirja Kühlewind <mirja.kuehlewind@tik.ee.ethz.ch>, Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>, Brian Trammell <ietf@trammell.ch>, Stephan Neuhaus <sten@artdecode.de>, Stephen Farrell <stephen.farrell@cs.tcd.ie>
Subject: Re: [Spud] [Privsec-program] Detecting and Defeating TCP/IP Hypercookie Attacks
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On 8/1/16 10:52 PM, Tom Herbert wrote:
> The question is also whether we need to send an explicit "end
> connection" signal. Network devices want this to know when to free
> their connection tracking state, but in a multipath Internet I don't
> readily how this would be a useful signal either.
>

Look at that as an optimization.  We always have to handle the case
where the device drops dead or a process dies.

Eliot

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