How to configure a Loopback Interface on Cisco 2911 Router?

Cisco 2900 Series Integrated Services Routers (ISR) have modular design that allows for reuse of a broad array of existing modules that meet business requirements while maximizing investment protection. Among all C2911-VSEC, C2901-VSEC, Cisco2921-V and Cisco2911-V are best selling models.

      

interface type number

Router(config)# interface Loopback 0

Router(config-if)#

Enters configuration mode for the loopback interface.

ip address ip-address mask

Router(config-if)# ip address 10.108.1.1 255.255.255.0

Router(config-if)#

Sets the IP address and subnet mask for the loopback interface.

exit

Router(config-if)# exit

Router(config)#

Exits configuration mode for the loopback interface and returns to global configuration mode.

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