Topic: portforward inside out

[Mozzi]

Hi all
I have been struggeling with this for a day or so.
Clients are running a custom app on a machine inside the firewall.
Now I downloaded the portforward packages and the port opening packages.
Problem is I can only forward an external port to an internal one not the other way around.
Any ideas/tips/hints on how I can do that?

Mozzi

[Charlie Brady]

Mozzi wrote:

> Problem is I can only forward an external port to an internal
> one not the other way around.

External ports are directly accessible via NAT, so it makes no sense to portforward from inside out.

Charlie

[Bill Pflaumer]

What do you really need to accomplish from outside the firewall ? For example, if you want to get an XP remote desktop behind the firewall, your source and dest. port would be 3389 (default port for RDP) with the dest. IP address of XP station running RDP. Also remember, the service you wish to connect to must know how to route the packets back to the source (static routes/default gateway).

Bill