Operation Manual

Cerberus Wi-Fi Lite (P6381-0)
41
Example: Restricting Internet Access on a Computer
This following example sets the Wireless-G Router to block Internet access from the
computer with an IP address of 192.168.1.120.
Firewall: Port Filtering
The Port Filtering feature allows you to restrict Internet access based on the application
protocol and port number(s). You can control Internet access usage (for example, block peer-
to-peer applications) and increase network security. Click Firewall > Port Filtering to display
the configuration screen as shown.
Enable Port Filtering – Select this option to activate this feature.
Port Range – Specify the service port number range in the fields provided. To specify one
port number, enter the same service port number in both fields.
Protocol – Select a protocol type for the application. Choices are UDP, TCP or Both.
Comment – Enter a description for this port filtering rule.
Apply Changes – Click Apply Changes to save the changes. The Wireless-G Router will
reboot to make the changes take effect.
Reset – Click Reset to undo the changes.
Current Filter Table – This table displays the current port filter settings on the Wireless-G
Router.