pass in on ed0 proto tcp from localhost to localhost port = 23 flags S/SA block in on lo0 proto tcp from any to any flags A pass in on lo0 proto tcp from any to any flags /SAP block in on lo0 proto tcp from any to any flags 0x80/A pass in on lo0 proto tcp from any to any flags S/18 block in on lo0 proto tcp from any to any flags 2/18 pass in on lo0 proto tcp from any to any flags 2 block in on lo0 proto tcp from any to any flags /16 pass in on lo0 proto tcp from any to any flags 2/SA pass in on lo0 proto tcp from any to any flags S/18 block in on lo0 proto tcp from any to any flags 2/18 pass in on lo0 proto tcp from any to any flags 2 block in on lo0 proto tcp from any to any flags /16 pass in on lo0 proto tcp from any to any flags 2/SA