Ratgeber Firewall
PREROUTING-Kette
iptables -t nat -A PREROUTING -i ppp0 -s 172.16.0.0/12 - j DROP
iptables -t nat -A PREROUTING -i ppp0 -s 192.168.0.0/16 -j DROP
iptables -t nat -A PREROUTING -i ppp0 -s 127.0.0.0/8 -j DROP
iptables -t nat -A PREROUTING -i ppp0 -s 224.0.0.0/4 -j DROP
iptables -A FORWARD -i ppp0 -j LOG

