When you first power up a new Cisco Router, you have the option of using the “setup” utility which allows you to create a basic initial configuration.
However, in this post I will show you how to do this basic setup with the Command Line Interface (CLI).
Mastering the Cisco Router CLI is essential for more complex configuration tasks and it is the most important knowledge you should acquire if you want to become a Cisco network administrator.
CLI Configuration Modes
The basic CLI modes that we will be referring below are as following:
Router> <– User EXEC Mode
Router# <– Privileged EXEC mode
Router(config)# <– Global Configuration Mode
Router(config-if)# <– Interface Configuration Mode
Router(config-line)# <– Line Configuration Mode