/sbin/modprobe ip_tables
/sbin/modprobe ip_conntrack
/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe iptable_nat
 
echo Clearing old stuff
/sbin/iptables -F INPUT
/sbin/iptables -F OUTPUT
/sbin/iptables -F POSTROUTING -t nat
 
echo Allowing freenet
/sbin/iptables -A INPUT -i eth0 -p tcp -d 0/0 --dport 25132 -m state --state NEW,ESTABLISHED -j ACCEPT

echo Putting in stateful stuff
/sbin/iptables -A INPUT -i eth0 -m state --state NEW,INVALID -j DROP

echo Dropping broadcasts
/sbin/iptables -A OUTPUT -d 0.0.0.255/0.0.0.255 -j DROP

echo Enabling IP Masquerading (outside interface is eth0)
/sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward