Cisco Systems 520 series manual Getting Help, Enable Secret Passwords and Enable Passwords

Appendix A Cisco IOS Software Basic Skills

Getting Help

Table A-2 Command Modes Summary (continued)

Mode	Access Method	Prompt	Exit and Entrance Method		About This Mode
Router	Enter one of the router	Router	•	To exit to global	Use this mode to configure an IP
configuration	commands followed by	(config-		configuration mode,	routing protocol.
	the appropriate	router)#		enter the exit command.
	keyword, for example		•	To exit to privileged
	router rip, from
				EXEC mode, enter the
	global configuration
				end command, or press
	mode.
				Ctrl-Z.
Line	Enter the line	Router	•	To exit to global	Use this mode to configure
configuration	command with the	(config-		configuration mode,	parameters for the terminal line.
	desired line number	line)#		enter the exit command.
	and optional line type,		•	To exit to privileged
	for example, line 0,
				EXEC mode, enter the
	from global
				end command, or press
	configuration mode.
				Ctrl-Z.

Getting Help

You can use the question mark (?) and arrow keys to help you enter commands.

For a list of available commands at that command mode, enter a question mark:

Router> ?
access-enable	Create a temporary		access-list entry
access-profile	Apply	user-profile	to interface
clear	Reset	functions
...

To complete a command, enter a few known characters followed by a question mark (with no space):

Router> s?

* s=show set show slip systat

For a list of command variables, enter the command followed by a space and a question mark:

Router> show ?

...
clock	Display the system clock
dialer	Dialer parameters and	statistics
exception	exception information
...

To redisplay a command you previously entered, press the Up Arrow key. You can continue to press the Up Arrow key for more commands.

Enable Secret Passwords and Enable Passwords

By default, the router ships without password protection. Because many privileged EXEC commands are used to set operating parameters, you should password-protect these commands to prevent unauthorized use.

Cisco Secure Router 520 Series Software Configuration Guide

A-4 OL-14210-01