https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=138046
Michael Tuexen <tue...@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |tue...@freebsd.org

--- Comment #4 from Michael Tuexen <tue...@freebsd.org> ---
Hi Hiren,

if the response to the SYN is a pure RST (without an ACK bit set), it should be
ignored. If it is a RST-ACK, it should be accepted if and only if it acks the
SYN.

This is tested in
https://github.com/freebsd-net/tcp-testsuite/blob/master/state-event-engine/rcv-rst-syn-sent/README.md
and
https://github.com/freebsd-net/tcp-testsuite/blob/master/state-event-engine/rcv-rst-ack-syn-sent/README.md.

I found no issues using the test scripts.

Best regards
Michael

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