Saving the Running Configuration to Nvram

Chapter 3 Starting and Configuring the Router

Checking the Running Configuration Settings

Step 3 After a few seconds the user EXEC prompt (Router>) is displayed. Type enable to enter enable mode (configuration changes can only be made in enable mode):

Router> enable

The prompt changes to the privileged EXEC prompt:

Router#

Step 4 Enter the configure terminal command at the enable prompt to enter configuration mode from the terminal:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#

At the Router(config)# prompt, enter the interface type slot/port command to enter the interface configuration mode:

Router(config)# interface serial 0/1

Router(config-int)#

In either configuration mode, you can now enter any changes to the configuration. Press Ctrl-Z(hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter.

Step 5 Save your settings to NVRAM. (See the “Checking the Running Configuration Settings” section on page 3-21, and then the “Saving the Running Configuration to NVRAM” section on page 3-21.) If you do not save the configuration settings that you created in the router using configuration mode and the setup facility, your configuration will be lost the next time you reload the router.

Your router is now minimally configured and will boot with the configuration you have entered. To see a list of the configuration commands available to you, enter ? at the prompt while in configuration mode.

Checking the Running Configuration Settings

To check the value of the settings you have entered, enter the show running-configcommand at the

Router# prompt:

Router# show running-config

To review changes you make to the configuration, use the EXEC mode show startup-configcommand to display the information stored in NVRAM.