1pass in on ed0 proto tcp from localhost to localhost port = 23 flags S/SA 2block in on lo0 proto tcp from any to any flags A 3pass in on lo0 proto tcp from any to any flags /SAP 4block in on lo0 proto tcp from any to any flags 0x80/A 5pass in on lo0 proto tcp from any to any flags S/18 6block in on lo0 proto tcp from any to any flags 2/18 7pass in on lo0 proto tcp from any to any flags 2 8block in on lo0 proto tcp from any to any flags /16 9pass in on lo0 proto tcp from any to any flags 2/SA 10