ext_if="igb0"
set skip on lo0
set timeout tcp.finwait 20
set timeout tcp.closing 25


block return in all
block return out all

pass in quick on $ext_if proto tcp from any to $ext_if port 12345 \
        keep state (tcp.closing 10, tcp.finwait 15)

pass out quick on $ext_if proto tcp from any to any