Ip Forwarding... UBUNTU Edgy

keiai03 · 03-12-2007, 10:24 PM

How can i redirect this:

Wan access to Local? 121.x.x.x(public IP) the request must be forward to 10.x.x.x(local network).

Im using squid as my proxy server.

blackhole54 · 03-13-2007, 04:47 AM

Quote:

Originally Posted by keiai03

Wan access to Local? 121.x.x.x(public IP) the request must be forward to 10.x.x.x(local network).

Code:

iptables -t nat -A PREROUTING -i $WAN_IF -s 121.x.x.x -j DNAT --to-destination 10.x.x.x

Where WAN_IF is a variable that has been set to your WAN interface (such at eth0). You can just substitute that interface name for $WAN_IF in the above command if you wish.

The above command will forward all ports. If, for example, you just wish to forward port 80/tcp, you would add the options -p tcp --dport 80 . See the iptables man page for more info. There are also howtos available. You may also wish to add rules to netfilter's FORWARD chain for additional filtering.

keiai03 · 03-13-2007, 09:53 PM

Quote:

Originally Posted by blackhole54

Code:

iptables -t nat -A PREROUTING -i $WAN_IF -s 121.x.x.x -j DNAT --to-destination 10.x.x.x

Where WAN_IF is a variable that has been set to your WAN interface (such at eth0). You can just substitute that interface name for $WAN_IF in the above command if you wish.

The above command will forward all ports. If, for example, you just wish to forward port 80/tcp, you would add the options -p tcp --dport 80 . See the iptables man page for more info. There are also howtos available. You may also wish to add rules to netfilter's FORWARD chain for additional filtering.

thanks man it helps alot..