The Cisco Interface Configuration

The interface command focuses your configuration on the interface specified

Use the ip command to give the interface a address and a subnet designation

The description command is optional but is very effective in keeping track of what is where

Notice the prompt changes when in interface configuration mode from

R1 (config)# to R1 (config-if)#

The no shutdown command activates the interface

Notice I can move from one interface to the next without backing out with an exit command

The copy running-config startup-config command saves your configuration