WebSTAR DPR300 Series Cable Modem Gateway User’s Guide
Setup Advanced Settings – Port Forwarding Page Description
The following example illustrates how to use the port forwarding feature to configure the Microsoft
1.Set the
2.Enter the same IP address (192.168.0.5) in the Local IP Address field as the first entry in the Port Forwarding area of the page.
3.Enter 88 in both the Start Port and End Port fields in the same row you used in step 2.
4.Select UDP from the
5.Enter the same IP address you entered in step 2 as the second entry in the Port Forwarding area of the page.
6.Enter 3074 in both the Start Port and End Port fields in the same row you used in step 5.
7.Select Both in the same row you used in steps 5 and 6, and then select the box in the Enable field.
8.Click Apply to apply and save your new port forwarding settings.
Configuring TCP/UDP Port Triggers
Use the Setup Advanced Settings – Port Triggers page to configure TCP/UDP port triggers. Port triggering is similar to port forwarding but is dynamic. In other words, the system does not hold the ports open indefinitely. For example, when the cable modem gateway detects outgoing data on a specific IP port number set in the “Trigger Range,” the resulting ports set in the “Target Range” open for incoming data. If the system detects no outgoing traffic on the “Trigger Range” ports for a period of 10 minutes, the “Target Range” ports close. This is a safer method for opening specific ports for special applications, such as, video conferencing programs, interactive gaming, and file transfer in chat programs. This is safe because the ports are dynamically triggered and not held open continuously, or erroneously left open by the router administrator. Therefore, these ports are not exposed and vulnerable for potential hackers to discover.
If you are not familiar with the advanced settings detailed in this section, contact your cable service provider before you attempt to change any of the cable modem gateway default advanced port triggers settings.
Click Port Triggers in the Advanced Settings section of the Setup page to access the Setup Advanced Settings – Port Triggers page.
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