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SBG6700-AC (v8.6.x): Port Forwarding Setup

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Question
How do I configure port forwarding on my SBG6700-AC gateway?
Answer
Port Forwarding allows the option to run a publicly accessible server on the LAN by specifying the mapping of TCP / UDP ports to a local device.  This enables incoming requests on specific port numbers to reach devices such as Web Servers, Mail Servers, and Digital Video Recorders (DVR).  Some services are predefined under the Commonly Forwarded Ports or be manually configured through the entry.  This document contains the following sections: NOTE 1: It is recommended to manually configure the TCP / IP settings on the server that will be remotely accessible.  If this is done, then it is mandatory to configure the following settings:
  • IP address
  • Subnet mask
  • Default gateway
  • At least one DNS address
If the following settings are configured without the default gateway, remote access to the server will not be available, as it will only be accessible from the local network.  

NOTE 2: When manually configuring the TCP / IP settings on a device, make sure that the DHCP pool in the SBG6700-AC doesn't include the IP address of the server. 

NOTE 3: If the firewall is set to High or Medium, port forwarding feature will be inoperable.  The firewall needs to be set to Low to function.

 

Creating Port Forwarding Entry

  1. Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter http://192.168.0.1 into the address box, and press the Enter key.  The Login page appears.  

    NOTE: By default the LAN IP address is 192.168.0.1.  If the default address has been changed, enter the custom address in the address box.  

     
  2. On the Login page:
    a.   Enter admin in the Username field.
    b.   Enter password in the Password field.
    c.   Click the Login button.  The Home page appears.  

    User-added image  

     
  3. Move the mouse-cursor over the Advanced tab and select the Port Forwarding sub-link.  The Advanced - Port Forwarding page appears.
  4. On the Advanced - Port Forwarding page:
    a.   External IP Address & Start/End Port - Leave at 0.0.0.0.  This will allow incoming traffic on the specified ports from any remote IP address.  This is sufficient for most setups.  Then enter the desired port number and re-enter the desired port number.  

    NOTE 1:  If it is desired to allow incoming traffic on the specified ports from only one remote IP address, enter that IP address for the External IP.

    NOTE 2: If it is desired to forward a range of ports, enter the first number of the range for Start Port, and the last number of the range for End Port.  

    b.   Local IP Address & Start/End Port - Enter the IP address of the device.  Then enter the desired port number and  re-enter the desired port number.  

    NOTE: If it is desired to forward a range of ports, enter the first number of the range for Local Start Port, and the last number of the range for Local End Port.  

    c.   Description -  Enter a desired name.
    d.   Protocol - Click on the drop-down menu and select the appropriate protocol (TCP, UDP, or Both).
    e.   Enabled - Click on the drop-down menu and select On.
    f.   Click the Apply button.  

    NOTE: A restart is not required, as the settings will immediately go into effect.  

    User-added image  

     


Enabling Commonly Forwarded Ports

  1. Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter http://192.168.0.1 into the address box, and press the Enter key.  The Login page appears.  

    NOTE: By default the LAN IP address is 192.168.0.1.  If the default address has been changed, enter the custom address in the address box.  

     
  2. On the Login page:
    a.   Enter admin in the Username field.
    b.   Enter password in the Password field.
    c.   Click the Login button.  The Home page appears.  

    User-added image  

     
  3. Move the mouse-cursor over the Advanced tab and select the Port Forwarding sub-link.  The Advanced - Port Forwarding page appears.
  4. On the Advanced - Port Forwarding page:
    a.  External IP Address & Start/End Port - Leave at 0.0.0.0.  This will allow incoming traffic on the specified ports from any remote IP address.  This is sufficient for most setups.
    b.  Local IP Address & Start/End Port - Enter the IP address of the device.
    c.  Commonly Forwarded Ports - Click the drop-down tab and selected the desired service.  This example uses War of Warcraft as the Commonly Forwarded Ports.  

    NOTE: The options for Start/End Port, Description, and Protocol will auto populate. 
    d.  Enabled - Click the drop-down tab and select On. 
    e.  Click the Apply button.  

    NOTE: A restart is not required, as the settings will immediately go into effect.  

    User-added image

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