Specifications

Chapter 1 Introduction to Router Configuration
Saving Configuration Changes
1-10
Cisco 1700 Series Router Software Configuration Guide
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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.