Mine

# filter rules for rl0 inbound
block in on $ext_if all

#filter rules for rl0 outbount
block out on $ext_if all
pass out on $ext_if from any to $slack queue std_out_slack

#filter rules for sis0 inbound
block in on $int_if all
pass in on $int_if from $localnet

#filter rules for sis0 outbound
block out on $int_if all
pass out $int_if from any to $localnet
pass out on $int_if from any to $slack queue std_in_slack