pass in from port = 10101
pass out from any to port != 22
block in from port 20:21
block out from any to port 10 <> 100
pass out from any to port = {3,5,7,9}
block in from port = {20,25}
pass in from any port = {11:12, 21:22} to any port = {1:2, 4:5, 8:9}