6 echo 1 | tee /proc/sys/net/ipv4/ip_forward
\r
7 iptables -t nat -A POSTROUTING -o $EXTERNAL -j MASQUERADE
\r
8 iptables -A FORWARD -i $EXTERNAL -o $INTERNAL -m state --state RELATED,ESTABLISHED -j ACCEPT
\r
9 iptables -A FORWARD -i $INTERNAL -o $EXTERNAL -j ACCEPT
\r