[Bug 253096] [tcp] RACK does not support TCP MD5

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Tue Feb 2 01:36:43 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253096

Rodney W. Grimes <rgrimes at FreeBSD.org> changed:

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--- Comment #5 from Rodney W. Grimes <rgrimes at FreeBSD.org> ---
(In reply to Michael Tuexen from comment #4)
> I think neither RACK nor BBR do support TCP MD5. Up to now, this was also not intended, I think, but I'll let rrs@ confirm.

Do and of the stacks support TCP-AO?  I think that should be a requirement
since that is the replacement for TCP-MD5.  And though TCP-MD5 is officially
depricated giving the nature of how slowly TCP-AO has rolled out it would
probably be a good idea to have continued support for TCP-MD5 in all stacks
(this is not a hard thing to implement) until TCP-AO is more widely deployed. 
Most of my BGP peers have a fall back stance to TCP-MD5 if you can't do TCP-AO.

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