Configuring the Cisco Router
Enter the privileged mode by issuing the command enable, then issue several show commands to see what they display. Definitely try out the following most useful show commands:
Router#show interfaces
Router#show ip protocols
Router#show ip route
Router#show ip arp
When you enter privileged mode by using the command enable, you are in the top-level mode of privileged mode,
Global configuration mode (config mode)
To configure anything on the router, you must enter the configuration mode by issuing the command “config term”.
Router#config term
Router(config)#
“config term” simply says configure from your terminal.
Notice the prompt change above, to indicate the mode you are now in.
In the configuration mode you can configure things that would affect the whole router. This mode is also called as the "global configuration mode".
hostname
One of the first things you should do when configuring a router is to give it a name so that you can easily identify it. This is done in the configuration mode, using the “hostname” command.
Router(config)#hostname Dumbledore
Dumbledore(config)#
when you set the name of the host with the hostname command, the prompt immediately changes by replacing “Router” with Dumbledore.
Disclaimer
This document is to help you configure Cisco routers. We do not guarantee the accuracy of information in this document. Use at your own risk. The author will not be liable for any damages that occur as a result of using this document.