How to Change the NAT Type With a BellSouth Modem
Some broadband equipment provided by BellSouth serves as both a modem and router. These devices obtain your Internet address information and distribute network addresses locally. Software programs behind these devices are subject to reporting a strict NAT type. This is due to the lack of direct communication with the Internet address assigned by BellSouth. Change the NAT type by accessing the Netopia software interface on your BellSouth modem and configuring port forwarding through the "Pinholes" feature. This allows the device to pass specified network traffic through your BellSouth gateway modem.
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Instructions
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Open your Web browser, point it to “192.168.1.254” and press “Enter.” Log in using the username “admin” and enter the password you created during initial setup.
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Click the “Expert Mode” link located on the left pane and click “Ok.” This draws a menu bar at the top of the screen.
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Click the “Configure” button on the menu bar, and then click “Advanced.” This displays the "Network Configuration" menu.
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Click the “Pinholes” link under the "NAT" section and click the “Add” button. This opens a "Pinhole Entry" box.
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Type a unique name in the “Pinhole Name” field. For example, if you are changing the NAT type for an Xbox, you might type “Xbox 360” in the “Pinhole Name” field.
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Click the “Protocol Select” menu and select the protocol type. This information should be supplied with the port information for your program or device.
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Type the port your need to forward in the “External Port Start,” “External Port End” and “Internet Port” field boxes.
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Type the IP address of the computer this entry applies to in the “Internal IP Address” field. Click the “Submit” button to save your changes. If you need to forward more than one port, click “Add More Pinholes” and click “Add.” This displays a new "Pinhole Entry" box.
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Close your Web browser.
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