Cisco 3825 Software Configuration Guide - Page 49
Undoing a Command or Feature, Saving Configuration Changes, Where to Go Next - can t save config
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Page 49 highlights
Chapter 2 Cisco IOS Software Basics Undoing a Command or Feature Undoing a Command or Feature If you want to undo a command that you entered or if you want to disable a feature, enter the keyword no before most commands; for example, no ip routing. Saving Configuration Changes You must enter the copy running-config startup-config command to save your configuration changes to NVRAM, so that the changes are not lost if there is a system reload or power outage. For example: Router# copy running-config startup-config Building configuration... It might take a few minutes to save the configuration to nonvolatile random-access memory (NVRAM). After the configuration has been saved, the following message appears: [OK] Router# Where to Go Next Now that you know some Cisco IOS software basics, you can begin to configure the router by using the CLI. Remember the following: • You can use the question mark (?) and arrow keys to help you enter commands. • Each command mode restricts you to a set of commands. If you have difficulty entering a command, check the prompt and then enter the question mark (?) to see a list of available commands. You might be in the wrong command mode or be using the incorrect syntax. • To disable a feature, enter the keyword no before the command; for example, no ip routing. • You need to save your configuration changes to NVRAM so that the changes are not lost if there is a system reload or power outage. Proceed to Chapter 3, "First-Time Configuration," for first time configuration. Otherwise, proceed to Chapter 4, "Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line Interface," to begin configuring the router. OL-15667-03 Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide 2-3