#where eth1 is wireless, and eth0 is wired
echo "NATing internal eth0 to external eth1"
#load modules
modprobe ipt_MASQUERADE

#turn on stuff
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv4/ip_dynaddr

#set up new forwarding rules
/sbin/iptables -t nat -A POSTROUTING -o eth2 -j MASQUERADE
/sbin/iptables -A FORWARD -i eth0 -o eth2 -m state --state RELATED,ESTABLISHED -j ACCEPT
/sbin/iptables -A FORWARD -i eth2 -o eth0 -j ACCEPT

/sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
echo "Now NATing"