ZyXEL Communications FMG3025-D10A User Manual

Chapter 3 Tutorials

FMG3024-D10A / FMG3025-D10A Series User’s Guide

Enter the settings for your connection as specified by the ISP and save your changes. You should 
see a summary of your new connection setup in the Broadband screen.

Try to connect to a website, such as “www.zyxel.com” to see if you have correctly set up your 
Internet connection. Be sure to contact your service provider for any information you need to 
configure the WAN screens.

In this tutorial, you manage the Doom server on a computer behind the Device. In order for players 
on the Internet (like A in the figure below) to communicate with the Doom server, you need to 
configure the port settings and IP address on the Device. Traffic should be forwarded to the port 
666 of the Doom server computer which has an IP address of 192.168.1.34.

Tutorial: NAT Port Forwarding Setup 

You may set up the port settings by configuring the port settings for the Doom server computer 
(see 

 for more information).

Click Network Setting > NAT > Port Forwarding. Click Add new rule.

Enter the following values:

D=192.168.1.34

port 666

Service Name

Select User Defined.

WAN Interface

Select the WAN interface through which the Doom service is forwarded. 
This is the default interface for this example, which is EtherWAN1.

Start/End Ports

666 

Translation Start/End 
Ports

Server IP Address

Enter the IP address of the Doom server. This is 192.168.1.34 for this 
example.

Protocol

Select TCP/UDP. This should be the protocol supported by the Doom 
server.