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Re: [Taps] [Last-Call] Opsdir telechat review of draft-ietf-taps-transport-security-11

Joseph Touch <touch@strayalpha.com> Thu, 16 April 2020 17:10 UTC

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From: Joseph Touch <touch@strayalpha.com>
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Date: Thu, 16 Apr 2020 10:10:52 -0700
Cc: last-call@ietf.org, ops-dir@ietf.org, draft-ietf-taps-transport-security.all@ietf.org, taps@ietf.org
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To: Susan Hares <shares@ndzh.com>
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Subject: Re: [Taps] [Last-Call] Opsdir telechat review of draft-ietf-taps-transport-security-11
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> On Apr 16, 2020, at 9:55 AM, Susan Hares <shares@ndzh.com> wrote:
> 
> Joe: 
> 
> I have come to the same conclusion that an open-source TCP-AO is the next
> step for TCP-AO.
> 
> I still hoping for some fairy dust ... to fix the BGP TCP security problem. 
> If you have any ... let me know 


We have a fix for the security problem. What we lack is a fix for the freeloader problem. 

Other than declaring TCP MD5 a hazard and actively abandoning it, there’s too much of a fallback.

One step might be for the IETF to prohibit support for TCP MD5 in all new work - e.g., there’s pending work in TCPM to develop a YANG model that includes MD5 “for legacy support”, but that only serves to feed the problem. 

But a new solution isn’t going to make freeloading easier.

Joe

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