pass in all flags S/SA pass in all no state pass in proto tcp from any port <= 1024 to any flags S/SA label "foo_bar" pass in proto tcp from any to any port = smtp flags S/SA pass in inet proto tcp from 10.0.0.0/8 port > 1024 to ! 10.1.2.3 port != ssh flags S/SA pass in inet proto igmp from 10.0.0.0/8 to 10.1.1.1 allow-opts pass in inet proto tcp from 1.2.3.4 to any flags S/SA label "6:tcp:1.2.3.4::any:" pass in inet proto tcp from 1.2.3.5 to any flags S/SA label "7:tcp:1.2.3.5::any:"