1pass in inet from any to 127.0.0.1 flags S/SA keep state
2pass in inet6 from any to 2000::1 flags S/SA keep state
3pass in all flags S/SA keep state probability 50%
4pass in all flags S/SA keep state probability 50%
5pass in inet6 proto tcp from ::1 to any flags S/SA keep state probability 0.8%
6