Oleg Sharoyko wrote:

Julian Elischer wrote:

great.. in your simple server, can you do the sockopt on the socket AFTER you did the listen()?
(just as a test).

Doesn't help. I have also tried to add setsockopt() after accept() (for a new socket) and in this case the only packet that is being sent out via wrong interface is the SYN+ACK from server.

I'll try to look into the kernel code tomorrow and will report any findings.

--
Oleg


in addition to the patches already sent you might like to add the following line to netinet/tcp_input.c

                }
                inc.inc_fport = th->th_sport;
                inc.inc_lport = th->th_dport;
                inc.inc_fibnum = so->so_fibnum; <-------------
                /*
* Check for an existing connection attempt in syncache if * the flag is only ACK. A successful lookup creates a new * socket appended to the listen queue in SYN_RECEIVED state.
                 */
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