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