> The SYN side of the equation, however, is a bit more tricky. The > proposed RFC recommends ACKing SYN packets in the window, just like > we do to SYN packets to the left of the window right now. > > For the life of me, I can't figure out why SYN packets (other than > delayed retransmissions of the original SYN) would ever show up once > a connection is in the ESTABLISHED state. So, I'm proposing the > attached patch, which simply ignores any packet with the SYN flag on > it while a connection is in the ESTABLISHED state. This means that > SYN packets left of the window will no longer receive an ACK, and > SYN packets in the window will no longer reset the connection. In > all states other than ESTABLISHED, SYN packets are handled as they > were before, in case there's some edge case where that could happen.
This sounds OK to me. FWIW. allman -- Mark Allman -- ICIR -- http://www.icir.org/mallman/
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