How do I set up Port Forwarding?

Port forwarding tells the Ubee gateway which computer on the local area network to send data to. If your host systems or applications have communications issues with the Internet, you can use forwarding to resolve the following issues:

  • Data is sent from a local host to the Internet, but the return path of expected data is not received by your local host.
    • An application or service running on your local network (on local host) cannot be accessed from the Internet directly (for example, a request to a local audio server). Examples of applications that may require port forwarding are:
      • Xbox/PlayStation – Games/applications
      • Home Security Systems – Security systems that use the Internet
      • Audio Servers/VoIP – Audio and VoIP applications and services

NOTE: If your host systems/applications do not have communications issues with the Internet, forwarding is not needed.

Before Setting Up Forwarding

Before you set up port forwarding, try enabling UPnP (Universal Plug and Play). This may resolve the issue you have without the need to set forwarding rules.

  1. Login into the device as described in the “How do I log into the modem’s Web User Interface?” FAQ.
  2. Select Gateway from the top menu, then Options from the left menu.
  3. Check the box to enable UPnP.
  4. Click Apply.
    1. Test your local host/application (for example, Xbox) to determine correct functionality.  If it is still not properly communicating, continue with port forwarding.

Setting Up Port Forwarding

You need two items of information to setup port forwarding:

  1. You will need the IP address of each local host system (for example, Xbox) for which you need to setup a port forwarding rule.  It is also recommended that you assign a Static IP lease to the client/host to which you are setting up forwarding. This way, the IP does not change and disrupt your forwarding rules. For example, if you are hosting a Web server in your internal network and you wish to setup a forwarding rule for it, you should assign a static IP lease to that system to keep the IP from renewing and disrupting the forwarding rule.  Please see the “How do I configure a DHCP Static Lease” FAQ for instructions.
  2. The port numbers are numbers that a local host’s application looks for for incoming requests/data (for example, a game or other service). These port numbers should be available in the documentation associated with the application. You may also refer to for more information. 

Steps to Set up Port Forwarding:

  1. Login into the device as described in the “How do I log into the modem’s Web User Interface?” FAQ.
  2. On the top menu, click GATEWAY.
  3. On the left menu, select Forwarding.

The following example shows how to setup a single Xbox running Modern Warfare 2. Since multiple ports are used for the Xbox and the Modern Warfare 2 game, a separate forwarding rule is set up for each port. (Multiple ports and forwarding rules may not be required for other applications.) Note the following:

  • Enter the Xbox IP address in the Local IP field. Notice how the same IP is entered in 4 rows, one row for each port used by the Xbox.
  • Define ports used by the Xbox in the Internal Port field. Define the same ports used by the Xbox in the External Port Start and End fields.

You can set up applications/services to listen on one internal port. External Internet users who want to access that application, address it using an external port, such as an Audio server. In the screen example below, Internal Ports are the ports to which local servers listen. External Ports are the ports that the cable modem listens to from the WAN.

  • Create Port Forwarding rules per port. Therefore, a rule set up for port 53 only works for port 53. A port can be used only by one program at a time. 


Port Map

By clicking on Port Map at the bottom of the Forwarding screen, you can view a list of common applications and the port to which they are assigned.

For your entire port forwarding setting needs, you can either:

  • Refer to your application or device user manual for specific port forward settings.
  • Go to and select your router and application for details on how to set port forwarding.

Hint: On, select the Ubee device you’re using. The screen shots are basically the same for all Ubee routers. Port forward values are the same for all applications regardless of the selected router.