Translations:Home router/72/ru
From Gentoo Wiki
root #iptables -I FORWARD -i ${LAN} -d 192.168.0.0/16 -j DROP
root #iptables -A FORWARD -i ${LAN} -s 192.168.0.0/16 -j ACCEPT
root #iptables -A FORWARD -i ${WAN} -d 192.168.0.0/16 -j ACCEPT
root #iptables -t nat -A POSTROUTING -o ${WAN} -j MASQUERADE