ext_if = "lo0" set limit states 100 set block-policy drop set require-order yes scrub in all fragment reassemble pass out on lo0 proto tcp from any to any port = ssh keep state queue(pri-med, pri-high) pass out on lo0 proto tcp from any to any port = www keep state queue pri-med pass in on lo0 proto tcp from any to any port = www keep state queue pri-low