User's Manual

Chapter 6: Configure 67
5. In the Trigger type drop-down list box, click the trigger type. The
trigger type should be specified in the documentation for the
application.
6. In the Inbound port(s) box, type the inbound port. The inbound
port can be a single port or a comma-separated list of ports or
port ranges. For example, you could type 4-25, or 243, or 10,
24-50, 74. You are limited to 256 characters.
7. In the Public type drop-down list box, click the public type. The
public type should be specified in the documentation for the
application.
8. Select the Enable check box.
9. To save the changes you have made, click Apply, or to delete
the changes, click Cancel.
If an application does not function correctly after you enable
multiple ports, check the documentation for the application to
verify that you are enabling the correct ports to open. If you have
set the correct ports to open and the application still does not
function properly, you may need to establish a DMZ on one of the
client computers on your network to run the application. For
information about establishing a DMZ, see “Virtual Demilitarized
Zone” in this chapter.
Persistent Port Forwarding
When you host a server on your network—for example, a Web or
FTP server—you must configure the base station to perform
persistent port forwarding.
Persistent port forwarding is similar to application-triggered port
forwarding in that you are opening inbound ports to allow particular
types of data or data requests to be sent from the Internet to one
of the networked computers. The difference is that you are opening
these inbound ports permanently, rather than configuring them to
open only when there is data sent to an outbound port. In addition,
you are directing the data sent to that port to a particular computer
on your local network.
For example, if you set up a Web server on one of the computers
on your network, you must direct unsolicited requests sent to
Transmission Control Protocol (TCP) Port 80, which handles
Hypertext Transfer Protocol (HTTP) or Web data, to that computer.
An unsolicited request is any data communication that is not
initiated by a computer on your local network.
Although not required, it is recommended that you have a static
(fixed) IP address to host any type of server on your network.
To establish persistent port forwarding, you will need the following
information: