Linksys NWR04B manual Port, Triggering

Network Everywhere® Series

Port Range Forwarding sets up public services on your network, such as web servers, ftp servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming. Some Internet applications may not require any forwarding.) When users send this type of request to your network via the Internet, the Router will forward those requests to the appropriate PC. Before using Forwarding, the Router’s DHCP function must be disabled under the DHCP tab and the Router must be assigned a new static LAN IP address because the IP address may change when using the DHCP server.

If you need to forward all ports to one PC, see the “DMZ” section.

To add a Customized Application using Port Range Forwarding:

1.Enter the name of the application in the appropriate Customized Application field.

2.Next to the name of the application, enter the number of the external port used by the server in the Ext. Port column. Check with the Internet appli- cation software documentation for more information.

3.On the same line, select Protocol TCP or Protocol UDP.

4.Enter the IP address of the server that you want the Internet users to be able to access. For information about finding the IP address, go to “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

5.Check the Enable box to enable the services you have defined. Port Range Forwarding will not function if the Enable button is left unchecked. This is disabled (unchecked) by default.

6.Configure as many entries as needed—the Router supports up to 10 ranges of ports. Click the Apply button and then the Continue button when you are done.

To apply any of the settings you’ve changed on this page, click the Apply but- ton, and then click the Continue button. To cancel any values you’ve entered on this page, click the Cancel button. If you should need any further informa- tion about anything on this screen, click the Help button.

Wireless Cable/DSL Router

Port Triggering

From	the Port				Range
Forwarding			or		UPnP
Forwarding				screens,
click		the				Port
Triggering			button				to
access		the				Port
Triggering				screen,
shown in Figure 6-14.
This allows the Router
to watch outgoing data
for specific port num-
bers. The IP address of
the computer that sends
the matching				data			is
remembered				by			the
Router,		so	that			when
the	requested					data
returns		through					the
Router,		the		data			is
pulled back to the prop-
er computer by way of
IP address			and			port
mapping rules.							Figure 6-14

1.Enter the Application Name of the trigger.

2.Enter the Trigger Port Range used by the application. Check with the Internet application for the port number needed.

3.Enter the Incoming Port Range used by the application. Check with the Internet application for the port number needed.

4.Click the Apply button and then click the Continue button. Click the Cancel button to cancel any values you’ve entered.

45 46