Configuring Loopback Interfaces - Cisco MWR 1941-DC User Manual

Cisco ios ip-ran feature set

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Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set

To verify that you configured the correct host name and password:

Enter the show config command:

Step 1

Router(config)# show config

Using 1888 out of 126968 bytes

version XX.X

hostname Router

enable secret 5 $1$60L4$X2JYOwoDc0.kqa1loO/w8/

Check the host name and encrypted password displayed near the top of the command output.

Exit global configuration mode and attempt to re-enter it using the new enable password:

Step 2

Router# exit

Router con0 is now available

Press RETURN to get started.

Router> enable

Password: guessme

Router#

Configuring Loopback Interfaces

The loopback interface is a software-only, virtual interface that emulates an interface that is always up.

The interface-number is the number of the loopback interface that you want to create or configure. There

is no limit on the number of loopback interfaces you can create.

The multilink interface is a virtual interface, if you are not going to assign an explicit IP address to the

interface, you should create a loopback interface for the multilink interface to enable IP processing on

the interface.

In the case where the MWR 1941-DC is used in a redundant configuration, you must also configure

loopback interfaces for the health and revertive interfaces. The health interface monitors the status of the

redundant configuration so that the standby router can take over if there is a problem with the active

router. The revertive interface is required to ensure that the switchover takes place. We recommend that

you use 101 for the health interface and 102 for the revertive interface.

Configuring Tasks

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