artois# /sbin/route add default gw 172.26.16.7
artois# /sbin/ipfwadm -F -p deny artois# /sbin/ipfwadm -F -a masquerade -S 172.26.16.0/20
artois# ipchains -P forward DENY artois# ipchains -A forward -j MASQ -s 172.26.16.0/20
artois# iptables -P FORWARD DROP artois# iptables -A FORWARD -j ACCEPT -s 172.26.16.0/20 artois# iptables -A FORWARD -j ACCEPT -d 172.26.16.0/20 artois# iptables -t nat -A POSTROUTING -j MASQUERADE -s 172.26.16.0/20