sudo ifconfig ${IF2} $GWIP netmask $GWMASK
echo 'echo "1" > /proc/sys/net/ipv4/ip_forward' > /opt/tcz/ipf
chmod a+x /opt/tcz/ipf
sudo /opt/tcz/ipf
sudo modprobe ip_nat_ftp
sudo modprobe ip_conntrack
sudo modprobe ip_conntrack_ftp
sudo modprobe ip_conntrack_irc
sudo iptables -t nat -F
sudo iptables -t nat -A POSTROUTING -o $IF1 -s "$GWSRC" -j MASQUERADE
/sbin/iptables-save -t nat > /home/mrtg/iptable.txt 2>&1
