The IOS XE command-line interface is the language you will type into every Cisco router in this library. Hundreds of commands, dozens of modes, one set of conventions that everyone in networking takes for granted but no one is born knowing. This lab walks you through the conventions. After it, the show commands and config syntax you see in every later lab will feel like a language you already speak.
The whole lab is one router, R1, from the PingLabz CCNA Base Topology. No networking. Just the CLI.
What you will learn
- The four CLI modes you live in: user-exec, privileged-exec, global config, and interface config
- Context-sensitive help with
?and command abbreviation - The big four operational commands:
show version,show running-config,show ip interface brief,show clock - How to save your work (
copy running-config startup-config) and how to throw it away (write erase+reload) - The shortcuts that experienced engineers use daily so they finish a config session in two minutes instead of twenty
What this lab does NOT cover
- Networking. Nothing routed, nothing addressed beyond what is already configured in the base topology.
- SSH key generation and remote login. Lab sec-06 covers that.
- AAA, TACACS+, RADIUS. Lab sec-07 + sec-08 cover those.
- The full operational command surface - it is enormous. We cover the commands you reach for daily.
