Cisco Systems VG204XM, VG202XM manual Undoing a Command or Feature, Saving Configuration Changes

Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics

Understanding Cisco IOS Software Basics

Table 1-1	Common Command Modes (continued)
Command Mode		Access Method	VG Prompt Displayed	Exit Method
Global configuration		From the privileged	VG(config)#	To exit to privileged
		EXEC mode, enter the		EXEC mode, use the
		configure terminal		exit or end command,
		command.		or press Ctrl-Z.
Interface configuration		From the global	VG(config-if)#	To exit to global
		configuration mode,		configuration mode, use
		enter the interface type		the exit command.
		number command, such		To exit directly to
		as
				privileged EXEC mode,
		interface fast ethernet
				press Ctrl-Z.
		0/0.

Timesaver Each command mode restricts you to a subset of commands. If you are having trouble entering a command, check the prompt, and enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using the wrong syntax.

In the following example, notice how the prompt changes after each command to indicate a new command mode:

VG> enable

Password: <enable password>

VG# configure terminal

VG(config)# interface fastEthernet 0/0

VG(config-if)# line 0 VG(config)# exit

VG#

%SYS-5-CONFIG_I: Configured from console by console

The last message is normal and does not indicate an error. Press Return to get the VG# prompt.

Note You can press Ctrl-Zin any mode to immediately return to enable mode (VG#), instead of entering exit, which returns you to the previous mode.

Undoing a Command or Feature

If you want to undo a command you entered or disable a feature, enter the keyword no before most commands; for example, no ip routing.

Saving Configuration Changes

You need to enter the copy running-configstartup-configcommand to save your configuration changes to NVRAM, so the changes are not lost if there is a system reload or power outage. For example:

VG# copy running-config startup-config

Building configuration...

Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Software Configuration Guide

OL-16191-01 1-5