2.5 Virtual Server
To use certain special applications—some Internet games, videoconferencing, and Internet telephony, for example—you may have to use nonstandard ports. A port is an endpoint to a logical connection. The port number identifies the logical channel being used—for instance, port 21 is associated with FTP (File Transport Protocol). If you want to use an application that requires access to a port that the X4 would normally deny, you have to modify the X4’s settings to accommodate it.
One way to do this is to implement a virtual server. In other cases, you might want to have multiple ports open and for this you need to set up a Demilitarized Zone (DMZ); see page 26 for instructions on configuring a DMZ.
Tip:We recommend that you visit this web site:
www.practicallynetworked.com/sharing/specialapps.htm.
This site contains easy-to-understand instructions about opening ports and accommodating special applications.
To set up a virtual server, from the Advanced Setup page, click the Virtual Server button.
Chapter 2: Advanced Setup Options | 23 |