Configure Firebox NIC Settings

Applies To: Cloud-managed Fireboxes

By default, each Firebox interface is set to automatically negotiate the link speed. For a cloud-managed Firebox, you can set the link speed and MTU for an interface that is associated with a standalone network.

Firebox M200 and M300 interfaces 0, 1, and 2 do not support half duplex.

To configure NIC settings for an interface associated with a standalone network, from WatchGuard Cloud:

  1. Select Configure > Devices.
  2. Select the cloud-managed Firebox.
  3. Click Device Configuration.
  4. Click the Networks tile.
    The Networks configuration page opens.
  5. In the Interfaces section, click the tile for a standalone interface.
    The interface settings page opens.

Screen shot of the interface settings for a Standalone interface

  1. From the Link Speed drop-down list, select the link speed. This list includes only link speeds that your hardware model supports. If you want the Firebox to select the best network speed, select Auto Negotiate. You can also select one of the half-duplex or full-duplex speeds that is compatible with your other network equipment.
  2. In the MTU text box, specify the maximum packet size, in bytes, that can be sent through the interface. We recommend that you use the default, 1500 bytes, unless your network equipment requires a different packet size.
  3. To save configuration changes to the cloud, click Save.

See Also

About Firebox Networking Settings