On Mon, 24 Feb 2003, louie miranda wrote: > panic:/# iptables -t nat -A PREROUTING -i eth0 -p tcp -d > 203.190.72.108 --dport 21 -j DNAT --to 10.0.0.11:21 > panic:/# iptables -A FORWARD -i eth0 -o eth1 -p tcp -d > 203.190.72.108 --dport 21 -j ACCEPT > panic:/# telnet 203.190.72.108 21 > Trying 203.190.72.108... > telnet: Unable to connect to remote host: Connection refused > panic:/# telnet 10.0.0.11 21 > Trying 10.0.0.11... > Connected to 10.0.0.11. > Escape character is '^]'. > 220 Dynu FTP Server (Version 1.13) > ^] > telnet> q > Connection closed. > panic:/# telnet 203.190.72.108 21 > Trying 203.190.72.108... > telnet: Unable to connect to remote host: Connection refused > panic:/# Why do you want to use the WAN IP from your LAN when you could contact the LAN IP directly? What you have to do is: 1) Forward traffic from internal hosts. 2) NAT local->local traffic (This is explained somewhere in the netfilter docs) The above rules only forwards traffic from the internet. /Rasmus -- -- [ Rasmus "Møffe" Bøg Hansen ] --------------------------------------- Programming is a race between programmers, who try and make more and more idiot-proof software, and universe, which produces more and more remarkable idiots. Until now, universe leads the race. - R. Cooka ----------------------------------[ moffe at amagerkollegiet dot dk ] --