A-12
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Appendix A      Cisco IOS CLI for Initial Configuration
  Using the Cisco IOS CLI to Perform Initial Configuration
SUMMARY STEPS
1. enable
2. configure terminal
3. line vty line-number [ending-line-number] 
4. password password 
5. login 
6. end 
7. show running-config 
8. From another network device, attempt to open a Telnet session to the router. 
DETAILED STEPS
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode. 
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
line vty line-number [ending-line-number] 
Example:
Router(config)# line vty 0 4
Starts the line configuration command collection mode for 
the virtual terminal lines (vty) for remote console access.
• Make sure that you configure all vty lines on your 
router.
Note To verify the number of vty lines on your router, use 
the line vty ? command.
Step 4
password password 
Example:
Router(config-line)# password guessagain
Specifies a password on a line.
Step 5
login 
Example:
Router(config-line)# login
Enables password checking at login.
Step 6
end 
Example:
Router(config-line)# end
Returns to privileged EXEC mode.