This is again what is called the startup configuration. If I boot up the router at that point, I will lose my configurations if I do not save them into the nonvolatile memory.
At all times, for every line that I type into or copy into the command-line interface and hit Enter, that configuration command is going to be active and available in the running configuration. During change management, new configurations and sections may appear. After that, they gradually configure different functions and different components of the router. Administrators may even start the process by cutting text from configuration files and pasting it into the command-line interface. The configuration process is typically ongoing and incremental. If you want to navigate between second level configuration modes, then you can do so without having to go back to global configuration mode. If you want to navigate back and forth between modes, exit takes you one mode back and Ctrl+Z takes you all the way back to privileged EXEC mode with no regards to your location. This is similar for sub-interfaces, controllers, access lines and routing protocols. Interface configuration mode requires a command from global config and then the prompt changes to tell you that you are in a different configuration mode. *Feb 4 20:09:54.192: %SYS-5-CONFIG_I: Configured from console by console If you want to configure specific components, then you would have to go into that components configuration mode from global configuration.Įnter configuration commands, one per line. While in global configuration mode, anything you configure in that particular mode will affect the router as a whole typically, for example, the router’s host name and passwords and banners. That changes you to a different mode and the commands that you will have available are going to be different.
If you want to configure, you have to go into global configuration mode at least, and you can accomplish that by typing configure terminal. You go from user to privilege using the enable command and then from there you can only do monitoring and maintenance commands. Remember, exact modes have two sublevels: user and privileged.
The first step in configuring a router is to be located at privileged mode. We will see configuration examples for basic interface components including IP addresses and then an overview of the show commands to verify proper configuration and operations. In order to help us complete the basic configuration of our Cisco routers, this lesson introduces the use of configuration modes, and how they interact to help us configure the router from the command-line interface (CLI).