The read-only Interface Name is set to tunnel. In the adjacent field, enter a numeric suffix (1-9,999) to identify the interface.

Assign a virtual router to the interface, or click Virtual Router to define a new one (see Network > Virtual Routers). Select None to remove the current virtual router assignment from the interface.

Management Profile—Select a profile that defines the protocols (for example, SSH, Telnet, and HTTP) you can use to manage the firewall over this interface. Select None to remove the current profile assignment from the interface.

Click Add, then perform one of the following steps to specify a static IP address and network mask for the interface.

You can enter multiple IP addresses for the interface. The forwarding information base (FIB) your system uses determines the maximum number of IP addresses.

To delete an IP address, select the address and click Delete.

Select to enable IPv6 addressing on this interface.

Enter the 64-bit extended unique identifier (EUI-64) in hexadecimal format (for example, 00:26:08:FF:FE:DE:4E:29). If you leave this field blank, the firewall uses the EUI-64 generated from the MAC address of the physical interface. If you enable the Use interface ID as host portion option when adding an address, the firewall uses the interface ID as the host portion of that address.