# External Network Interface (WAN)

NOTE: It is recommended to configure WAN only when deploying MiVoice Border Gateway in the co-resident server gateway mode. Refer to the Network Profiles section of the MiVoice Border Gateway online help for more information.

To configure the WAN interface:

1. Select the Enabled check box.

   NOTE: The external network interface can be configured without enabling WAN check box.

2. Enter a unique IP address. This address must not be shared by any other devices.

3. Enter the Netmask and the Gateway details. The netmasks must match your existing networks.

4. Click Next to go to the Review Settings page.