1 iptables -t filter -A INPUT -i eth0 -s 192.168.0.0/24 -j ACCEPT
2 iptables -t filter -A INPUT -o ppp0 -p esp -d 195.0.0.0/8 -j DROP
3 iptables -t filter -A INPUT -f -j LOG
4 iptables -t filter -A INPUT -p ah ! -f -j ACCEPT
5 iptables -t filter -A INPUT -p ! udp -j DROP
6 iptables -t filter -A INPUT -p ! tcp -j DROP
7 iptables -t filter -A INPUT -d ! 10.0.0.0/8 -j REJECT
8 iptables -t filter -A INPUT -s ! 172.16.0.0/12 -j DROP
9 iptables -t filter -A INPUT -i ! ppp0 -j ACCEPT
10 iptables -t filter -A INPUT -o ! ppp1 -j ACCEPT