Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

interfaces loopback <interface-name>

Defines a loopback interface.

set interfaces loopback interface-name
delete interfaces loopback [ interface-name ]
show interfaces loopback

A configuration node is automatically created for the lo loopback interface on startup.

interface-name
The name of a loopback interface, lo or lon, where n ranges from 1 through 99999.

Configuration mode


interfaces {
    loopback interface-name
}

Use this command to configure a loopback interface.

Use the set form of this command to create a loopback interface. However, the system automatically creates a configuration node for the lo loopback interface on startup, so you should not need to use the set form of this command to create the lo loopback interface unless you have deleted it.

Use the delete form of this command to remove all loopback interfaces or just one. The system creates an empty configuration node for the lo interface the next time the system starts.

Use the show form of this command to display the configured loopback interfaces.