> Can anyonne please tell me how to open port 1500 to 1511 on my NAT box > using iptable on slackeware ?? You have not written what do you want precisely, so i will give a few examples. But PLEASE READ THE HOWTO, it is very informative. It is vital to know how it all works. I will assume TCP. If you want to open these ports _to_ the NAT box use: # iptables -A INPUT -p tcp --dport 1500:1511 -j ACCEPT If you want to NAT these ports do: # iptables -t nat -A PREROUTING -i $EXT -p tcp --dport 1500 -j DNAT \ --to x.y.z.a Remember that if doing 1:1 NAT requiers a similar rule for SNAT on POSTROUTING. If you want to NAT and change the ports do: # iptables -t nat -A PREROUTING -i $EXT -p tcp --dport 1500 -j DNAT \ --to x.y.z.a:other_port of course read also: # iptables -j DNAT --help # iptables -j SNAT --help # iptables -p tcp --help Regards, Maciej Soltysiak
