iptables -A FORWARD -i $EXTERNAL -o $INTERNAL -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i $INTERNAL -o $EXTERNAL -j ACCEPT
"""]]
iptables -A FORWARD -i $EXTERNAL -o $INTERNAL -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i $INTERNAL -o $EXTERNAL -j ACCEPT
"""]]