#!/bin/sh
#
# Nat'ing Firewall
# ----------------
#
# Latest Version
# --------------
#	http://www.Linux-Sec.net/Firewalls/scripts/rc.iptable.nat.firewall
#
#
# 27-Feb-02 amo Excerpt from
#	 http://lists.samba.org/pipermail/netfilter/2001-November/016812.html
#
#
#
iptables -F OUTPUT
iptables -F INPUT
iptables -F FORWARD
iptables -t nat -F PREROUTING
#
#
#
iptables -P OUTPUT ACCEPT
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
#
#
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
#
echo 1 > /proc/sys/net/ipv4/ip_forward
#
iptables -t nat -A PREROUTING -p tcp --dport 80 -i ppp0 -j DNAT --to 192.168.1.40:80
#
iptables -t nat -A PREROUTING -p tcp --dport 25 -i ppp0 -j DNAT --to 192.168.1.40:25
iptables -t nat -A PREROUTING -p udp --dport 25 -i ppp0 -j DNAT --to 192.168.1.40:25
#
iptables -t nat -A PREROUTING -p tcp --dport 110 -i ppp0 -j DNAT --to 192.168.2.40:110
iptables -t nat -A PREROUTING -p udp --dport 110 -i ppp0 -j DNAT --to 192.168.2.40:110
#
#
# end of file