Hello!
I'm trying to set up a box as round-robin TCP proxy. Of course, I'm
trying to do everything on kernel-level.
This simple setup
rdr on sk0 proto tcp from any to any port = smtp -> <outbound> port 25
round-robin
should work. At least, I thought so.
However, attempt to connect to port 25 yielded unexpected result. pfctl
-s state shows
self tcp 89.108.94.212:25 <- 89.108.94.91:25 <-
89.108.94.211:56975 CLOSED:SYN_SENT
connection never established, and no IP packet ever sends out to
89.108.94.212:25
I don't understand this thing. Maybe someone can point me to my error?
(firewall rules a quite permissive, in fact, they are pass in quick and
pass out quick for all interfaces. attempt to telnet to port 25 outside
works ok)
Alex.
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