IPTABLES=/sbin/iptables
#IPTABLES=/usr/local/iptables
DEPMOD=/sbin/depmod
MODPROBE=/sbin/modprobe
INTIF=eth1
EXTIF=eth0
$DEPMOD -a
echo " flushing firewall rules "
$IPTABLES -F
echo " forwarding packets "
echo "1" >/proc/sys/net/ipv4/ip_forward
#$IPTABLES -A FORWARD -i INTIF -o EXTIF -j ACCEPT
$IPTABLES -t nat -A  POSTROUTING -o $EXTIF -j MASQUERADE
$IPTABLES -A INPUT -m state --state RELATED -j ACCEPT