Description: The purpose of this exercise is to configure a loop back interface and test it for connectivity. The loopback interface is a logical interface internal to a router. It is not connected to any other device. A loopback interface is UP as long as the router is up and running. It is useful in managing a router as there will always be at least one interface available on the router, irrespective of other physical interfaces.
The command used for assigning loopback interface is:
Router(config)#interface loopback <number>
The number can be between 0 and 2147483647. A loopback interface is automatically put in "no shutdown" state when created. However, you need to assign an ip address to use a loopback interface.
Note: Please refer to the SimulationExams.com Sim-Ex™ Lab Simulator for Network+ software to try complete lab with instructions.
Disclaimer: Simulationexams.com is not affiliated with any certification vendor, and Sim-Ex™ Practice Exams are written independently by SimulationExams.com and not affiliated or authorized by respective certification providers. Sim-Ex™ is a trade mark of SimulationExams.com or entity representing Simulationexams.com.Network+™ is a trademark of CompTIA® organization.