Port forwarding problem with Ipcop

[Chaintech]

I have a problem with port 25 on an Ipcop box. Or maybe it's not the port it self that's the problem. I have already forwarded port 20, 21, 22, 80, 443, 1701, 1723 + GRE for internal use on both the orange and green network. Everything have worked perfectly until now.. I'm about to implement a mail server and want's to port forward port 25 to a specifik IP on the green network. But when I do my RAS server can't be reased from Red network.!
(port 1701 + 1723) Anyone knows what the h... is going on.?
The mail server works perfectly when adding the port forwarding.

EDIT: Just tested if I could forward port 25 to orange network. Worked perfectly.

[spamme]

Did you ever get a resolution to this issue? I have the same (more or less) problem.

On a workstation on the green network, when I telnet on port 25 to the red interface, the connection is accepted.

When I try this same telnet from an external source, I get a connection failed. I not just have SMTP issues, but RDP, FTP and HTTP.

Any ideas??

-S

[Chaintech]

Hi Spamme.

Thanks yes I did solve my problem.
Your problem sounds a bit different to me.
Is it a "clean" IPCOP installation.? Any addon's.?
Sounds like anything You wanna pass through the box is blocked.?
Give me some details on Your setup and I will see if can help.