pass in inet proto tcp from 1.2.3.4 to any flags S/SA label "0:any:tcp:1.2.3.4::any:"
pass in inet proto tcp from 1.2.3.5 to any flags S/SA label "1:any:tcp:1.2.3.5::any:"
pass in on lo0 inet proto tcp from 1.2.3.4 to any flags S/SA label "2:lo0:tcp:1.2.3.4::any:"
pass in on lo0 inet proto tcp from 1.2.3.5 to any flags S/SA label "3:lo0:tcp:1.2.3.5::any:"