1block 2block return 3block return-rst proto tcp 4pass 5pass in no state 6pass out no state 7pass all no state 8block in all 9block out all 10block from any to any 11pass in from any to any 12pass out from any to any 13block on lo0 14pass on lo0 all 15block on lo0 from any to any 16pass proto tcp flags S/SA 17pass proto udp keep state 18pass in proto udp all keep state 19pass out proto udp from any to any keep state 20pass out on lo0 proto tcp from any to any port 25 keep state 21