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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 3 First-Time Configuration
Verifying the Cisco IOS Software Version
Enter your selection [2]: 2
Building configuration...
[OK]
Use the enabled mode 'configure' command to modify this configuration.
Press RETURN to get started!
If you answer:
• 0—The configuration information that you entered is not saved, and you return to the router enable
prompt. To return to the system configuration dialog, enter setup.
• 1—The configuration is not saved, and you return to the EXEC prompt.
Step 2 When the messages stop displaying in your window, press Return to view the command line prompt.
The 901-1> prompt appears indicating that you are at the CLI and you completed a basic router
configuration.
Note The basic configuration is not a complete configuration.
Verifying the Cisco IOS Software Version
To verify the version of Cisco IOS software, use the show version command. The show version
command displays the configuration of the system hardware, the software version, the names and
sources of the configuration files, and the boot images.
Configuring the Hostname and Password
First configure the hostname and set an encrypted password. Configuring a hostname allows you to
distinguish multiple Cisco routers from each other. Setting an encrypted password allows you to prevent
unauthorized configuration changes.
Note In the following procedure, press the Return key after each step unless otherwise noted. At any time,
you can exit the privileged level and return to the user level by entering disable at the Router# prompt.
Complete the following steps to configure a hostname and to set an encrypted password:
Step 1 Enter enable mode.
Router> enable
The Password prompt appears. Enter your password.
Password: password
When the prompt changes to Router, you have entered enable mode.
Step 2 Enter global configuration mode.