## Allow SSH from safe/noloop to untrusted networks.
run iptables -A FORWARD -j ACCEPT \
- -p tcp ! -f --destination-port $port_ssh \
+ -p tcp ! -f --destination-port $port_ssh \
-m mark --mark $to_untrusted/$MASK_TO
run iptables -A FORWARD -j ACCEPT \
-p tcp ! -f --source-port $port_ssh \