I'm trying to get synproxy working on a firewall, using the following rule:
pass quick proto tcp from any to $front_smtp4 port 25 synproxy state The firewall accepts the connection on the outside interface, but I don't see (tcpdump) any attempt to complete the connectiom on the inside interface. The state table shows a pair of entries with state PROXY:SRC and DST:PROXY which line up with the connection, but all I get it dead air. This seems like it should 'just work'. Is there something obvious I'm missing? I can give more detailed info (pf rules, ifconfig) offline for anyone interested in helping out. Thanks! --lyndon