Intermediate level · Module 4: Router Configuration and Static Routing · Lesson 1 of 3
Command-Line Configuration
Configure network devices with commands.
In this lesson you will
- Navigate CLI modes
- Configure and save basic settings
Key concepts
user and privileged modesglobal configurationinterface configurationsaving
The lesson
Network device CLIs have modes: user mode for viewing, privileged mode for management and configuration mode for changes.
Basic settings include hostname, secure passwords, interface addresses and descriptions, and SSH for remote management instead of Telnet.
Save the running configuration to the startup configuration, or changes are lost on restart.
Step by step
- Enter each mode.
- Set hostname and passwords.
- Configure an interface.
- Save and verify.
Practice activity
Configure basic settings on two routers.
Expected result: Saved, secured basic configurations.
Check your understanding
-
Why use SSH instead of Telnet?
Show answer
SSH is encrypted.
-
What happens if you do not save the configuration?
Show answer
Changes are lost on restart.
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