To open a port for user-defined applications:
- Go to your gateway settings.
- Select the Firewall tab.
- Enter the Device Access Code found on the side of your gateway.
- Select NAT/Gaming. If you receive a warning message, visit the AT&T Port Forwarding tool to enable port forwarding on your account. Then, you can continue with the steps in this solution.
- Select Continue.
- From the Service drop-down, select the application for port forwarding.
If your application isn't in the list, or you are setting up port forwarding for a device:
- Select Custom Services.
- In Service Name, enter the name for the application or device.
- Enter the port(s) you wish to open for Global Port Range.
It's recommended to create a separate service entry for each port as opposed to using a port range. In this case, the port number should be the same in the Global Port Range fields.
- In Base Host Port, enter the port number used for the first Global Port Range section.
- Select the appropriate Protocol from the drop-down for the application or device you're adding.
- Select Add. Repeat as needed for additional applications and devices.
- When all applications or devices have been added, select Return to NAT/Gaming. Your new applications or devices will display in the Applications list.
- From the Needed by Device drop-down, select the device name or IP address of the device to open the port.
- Select Add.
- When your selections display in Hosted Applications, select Save.
Congratulations, you’ve set up port forwarding for your gateway!