Cisco Systems C819HG4GVK9 Access Method, Prompt, Mode Exit and Entrance, About This Mode

Appendix A Cisco IOS Software Basic Skills

Understanding Command Modes

Table A-2	Command Modes Summary
Mode	Access Method	Prompt	Mode Exit and Entrance		About This Mode
User EXEC	Begin a session with	Router>	To exit a router session, enter		Use this mode to:
	your router.		the logout command.		•	Change terminal settings.
					•	Perform basic tests.
					•	Display system information.
Privileged	Enter the enable	Router#	•	To exit to user EXEC	Use this mode to:
EXEC	command from user			mode, enter the disable	•	Configure your router
	EXEC mode.			command.
						operating parameters.
			•	To enter global	• Perform the verification steps
				configuration mode,
						shown in this guide.
				enter the configure
					To prevent unauthorized changes
				command.
					to your router configuration,
					protect access to this mode by
					using a password as described in
					the “Enable Secret Passwords and
					Enable Passwords” procedure on
					page A-5.
Global	Enter the configure	Router	•	To exit to privileged	Use this mode to configure
configuration	command from	(config)#		EXEC mode, enter the	parameters that apply to your
	privileged EXEC			exit or end command or	router globally.
	mode.			press Ctrl-Z.	From this mode, you can access the
			•	To enter interface	following modes:
				configuration mode,	•	Interface configuration
				enter the interface
					•	Router configuration
				command.
					•	Line configuration
Interface	Enter the interface	Router	•	To exit to global	Use this mode to configure
configuration	command (with a	(config-if)#		configuration mode,	parameters for the router Ethernet
	specific interface, such			enter the exit command.	and serial interfaces or
	as interface atm 0)		•	To exit to privileged	subinterfaces.
	from global
				EXEC mode, enter the
	configuration mode.
				end command or press
				Ctrl-Z.
			•	To enter subinterface
				configuration mode,
				specify a subinterface by
				using the interface
				command.

Cisco 819 Integrated Services Routers Software Configuration Guide

OL-18906-02 A-3