Cisco Systems DPC/EPC2325 DOCSIS Configuring and Enabling TCP and UDP Port Filters

How Do I Configure My DOCSIS Residential Gateway?

Configuring and Enabling TCP and UDP Port Filters

Use the Setup Advanced Settings - Port Filtering page to configure and enable TCP and UDP port filters. These filters prevent a range of TCP/UDP ports from accessing the Internet. You can also prevent PCs from sending outgoing TCP/UDP traffic to the WAN on specific IP port numbers. This filter is not IP address- or MAC address- specific. The system blocks the specified port ranges for all PCs.

Note: If you are not familiar with the advanced settings detailed in this section, contact your service provider before you attempt to change any of the residential gateway default advanced port filtering settings.

Click Port Filtering in the Advanced Settings section of the Setup page to access the Setup Advanced Settings - Port Filtering page.

Setup Advanced Settings - Port Filtering Page

The following illustration is an example of the Setup Advanced Settings - Port Filtering page.

Setup Advanced Settings - Port Filtering Page Description

Use this link to enter and enable the desired port filtering ranges and protocols in the appropriate fields and then click Apply to apply and save your new port filtering settings.

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