[Bug 173444] [socket] [patch] IPV6_USE_MIN_MTU and TCP is broken

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173444

--- Comment #6 from marka at isc.org ---
(In reply to Hiren Panchasara from comment #5)
My test system died years ago but I believe that it still is a problem.

It should be trivial to check.

create a IPv6 TCP socket.
set IPV6_USE_MIN_MTU=1 using setsockopt
connect to a data sink
write 1400 bytes to the socket in a single operation

Examine the packets sent with tcpdump.  There should be no fragmented
packets being sent as TCP is supposed to take into account MTU
information.

Mark

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