Sunday, May 17, 2015

ATT U-verse: Setting up Port Forwarding

Setting up Port Forwarding

Important Note
Opening ports in the modem firewall can leave your computers exposed to malicious attacks. AT&T is not responsible for potential attacks made to your computer systems or damage resulting from an attack caused by opening a port.
To open a port for a user-defined application on 2Wire gateways, do the following:
  1. Open an Internet browser.
  2. Type in the address bar.
  3. Click the Go button or press the Enter key on the keyboard.
  4. Click the Settings tab.The Settings tab follows the Services tab
  5. Click on the Broadband subtab.The Broadband sub-tab follows the System Info sub-tab
  6. Under Internet Details, locate the IP Address field.
    1. If your IP address starts with a 10.x.x.x, please visit our AT&T Port Forwarding Tool to request, view and remove your Port Forwarding assignments, as well as automatically configure your local AT&T provided modem/gateway with the touch of a button.
    2. If your IP address does not start with 10.x.x.x, please continue to step 7.
    The IP address field follows the Current Internet Connection heading
  7. Click on the Firewall subtab.The Firewall sub-tab follows the LAN sub-tab
  8. Click the ApplicationsPinholes and DMZ link.The Applications, Pinholes, and DMZ link is listed under the Firewall subtab tab, after Status.
  9. Under Select a computer, click the device name or IP address of the device you wish to open the port for. Alternatively, if you don't see the IP or device name listed, you can enter it in the Enter IP address field and click Choose.The Enter IP address text field and Choose button are listed directly under the device list.
  10. Under Edit firewall settings for this computer, select the Allow individual application(s) radio button.The Allow individual application(s) radio button is listed under the Maximum protection radio button. The Add a new user-defined applicaton link is located under the Application List column.
  11. In the event you're setting up Port Forwarding for an application, select the application in the list and then click the Addbutton. If you can't find the application or are setting up Port Forwarding for a device, do the following:
    1. Click the Add a new user-defined application link.
    2. Type a name for the application or device in the Application Profile Name field.From top to bottom, fields appear as follows: Application Profile name, Create Application Definition , Protocol, Port (or Range), Protocol timeout, and Map to Host port. The Back button is located below the Add to List button.
    3. Click the radio button next to the appropriate Protocol for the application in the Protocol field.
    4. Type the port(s) you wish to open in the From and To fields.
      It is recommended to create a separate user-defined application/device entry for each port as opposed to using a port range. In this case the port number should be the same in the From and To fields.
    5. Protocol Timeout and Map to Host Port fields should be left blank unless you wish to define these manually.
    6. Click the Application Type drop down menu and select type of application for which you're setting up port forwarding. If you're setting up Port Forwarding for a device or other type of application not listed, the field can be left as is with the default "-" selected.
    7. Click the Add to List button. 
      If there are more user-defined applications that need to be created, repeat step 11.
    8. When you've finished creating user-defined applications, click on the Back button.
    9. The user-defined application(s) you created will now show in the list. Choose the user-defined application(s) you created and click the Add button.
  12. When you've finished and your selections show under Hosted Applications, click the Save button at the bottom of the screen.Hosted applications is the third column listed under the Allow individual applications(s) radio button.
  13. Congratulations, you've set up port forwarding on your AT&T provided modem/gateway.
Important Note
Devices on a network routinely refresh their connections and may obtain a new IP address when this happens. Port Forwarding assignments are linked to the IP address that was selected during setup. If the device obtains a different IP address, the Port Forwarding assignment will no longer function for that device. To avoid your device from obtaining a different IP address from the gateway, it is recommended that you assign static IP addresses to your devices. If you do not know how to do this, please refer to your device's manufacturer or if you'd like assistance from us, AT&T offers a for-fee service called AT&T ConnecTech. For more information, visit ConnecTech or call 800.344.1734.

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