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Chapter 1 Introduction to Router Configuration

Saving Configuration Changes

1-10

Cisco 1700 Series Router Software Configuration Guide

78-5407-03

Undoing Commands

If you want to disable a feature or undo a command that you entered, you can enter

the keyword no before most commands; for example, no ip routing.

Saving Configuration Changes

You need to enter the copy running-config startup-config command to save your

configuration changes to nonvolatile random-access memory (NVRAM) so that

they are not lost if there is a system reload or power outage. The following

example shows how to use this command to save your changes:

Router# copy running-config startup-config

Table 1-3 Common CLI Error Messages

Error Message Meaning How to Get Help

% Ambiguous command:

"show con"

You did not enter enough characters

for your router to recognize the

command.

Reenter the command, followed by

a question mark (?), with no space

between the command and the

question mark.

The possible keywords that you can

use with the command are

displayed.

% Incomplete command.

You did not enter all of the

keywords or values required by this

command.

Reenter the command, followed by

a question mark (?), with no space

between the command and the

question mark.

The possible keywords that you can

enter with the command are

displayed.

% Invalid input

detected at ‘^’

marker.

You entered the command

incorrectly. The error occurred

where the caret mark (^) appears.

Enter a question mark (?).

All the commands that are available

in this command mode are

displayed.

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