Creating or modifying a loopback interface

Loopback interfaces may be used, for example, in dynamic routing configurations.

To create or modify a loopback interface, click on the “Loopback” tab.

Button bar


Search that covers interfaces.


Adds an “empty” interface. An added interface (sending of a command) is effective only if its fields Name and IP address have been entered.


Deletes one or several selected interfaces. Use the keys Ctrl/Shift + Delete to delete several interfaces.

Check usage

Represented by the icon , this button indicates whether the selected interface is being used elsewhere in the configuration.

Click on Add in the toolbar. An additional row will be inserted into the table of loopback interfaces.

Presentation of the table

The table sets out four fields of information:


Status of the interfaces:

Enabled: Double-click to enable the created interface.

Disabled: The interface is not in operation. The line will be grayed out in order to reflect this.


Give the loopback interface a name.

IPv4 address (mandatory)

Enter the IP address assigned to the loopback interface created.


Any text.