pass in proto tcp from any to any port = 25 flags S/SA keep frags block in proto tcp from any to any port = 25 flags S/SA keep frags pass in proto udp from any to any port = 53 keep frags block in proto udp from any to any port = 53 keep frags pass in proto tcp from any to any port = 25 flags S/SA keep state keep frags block in proto tcp from any to any port = 25 flags S/SA keep state keep frags pass in proto udp from any to any port = 53 keep frags(strict) pass in proto tcp from any to any port = 25 keep state(strict) pass in proto tcp from any to any port = 25 keep state(loose) |