Configuring a Loopback Interface

This section describes how to configure a loopback interface. Once created, a loopback interface remains in the Up state. Loopback interface characteristics are used to improve reliability.

Context

This section describes how to configure a loopback interface. A loopback interface is a virtual interface. The IP address of a loopback interface is specified as a source address for packets to improve network reliability.

Procedure

Choose Network > Interface.
Click Add.

Configure the following loopback interface parameters.

Parameter	Description
Interface Name	Alias name for a loopback interface.
Type	Type of an interface to be created. When creating a loopback interface, set this parameter to Loopback Interface.
Virtual System	Name of a virtual system for an interface. The virtual system must exist on the device.
IPv4
IP Address	IPv4 address of an interface. This value must be unique on a network.
IPv6
IPv6	Enable the IPv6 capability on the specified interface. Enabling IPv6 is a prerequisite for using IPv6 functions. Choose Dashboard > Device Information and enable IPv6 globally to allow the FW to forward IPv6 packets.
IPv6 Address	IPv6 address of an interface. This value must be unique on a network.

Click OK.
If the operation is successful, the new loopback interface is displayed in Interface List.

Repeat previous steps to create other loopback interfaces.

Follow-up Procedure

Check the interface status.

Choose Network > Interface.
Verify that the physical, IPv4, and IPv6 statuses of the interface are Up.