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RP614v4 Cable/DSL Router Reference Manual
Advanced Configuration of the Router 4-7
v3.1, June 2008
2. Change the beginning port number in the Start Port box.
For these games, use the supplied number in the default listing and add +1 for each additional
computer. For example, if you've already configured one computer to play Hexen II (using
port 26900), the second computer's port number would be 26901, and the third computer
would be 26902.
3. Type the same port number in the End Port box that you typed in the Start Port box.
4. Type the IP address of the additional computer in the Server IP Address box.
5. Click Apply.
Some online games and videoconferencing applications are incompatible with NAT. The RP614v4
router is programmed to recognize some of these applications and to work properly with them, but
there are other applications that may not function well. In some cases, one local computer can run
the application properly if that computer’s IP address is entered as the default in the Ports Menu. If
one local computer acts as a game or videoconferencing host, enter its IP address as the default.
Configuring the WAN Setup Options
The WAN Setup options let you configure a DMZ server, change the MTU size and enable the
router to respond to a Ping on the WAN port. These options are discussed below.
Setting Up a Default DMZ Server
The default DMZ server feature is helpful when using some online games and videoconferencing
applications that are incompatible with NAT. The router is programmed to recognize some of these
applications and to work properly with them, but there are other applications that may not function
well. In some cases, one local computer can run the application properly if that computer’s IP
address is entered as the default DMZ server.
Incoming traffic from the Internet is normally discarded by the router unless the traffic is a
response to one of your local computers or a service that you have configured in the Ports menu.
Instead of discarding traffic for services you have not defined, you can have it forwarded to one
computer on your network. This computer is called the Default DMZ Server.
Note: DMZ servers pose a security risk. A computer designated as the default DMZ
server loses much of the protection of the firewall, and is exposed to exploits from
the Internet. If compromised, the DMZ server can be used to attack your network.