Initial Start-up

When a Cisco router is first powered on and the bootstrap ROM has loaded the basic Internetworking Operating System (IOS) image into RAM, the non-volatile RAM (NVRAM) is checked for a pre-existing configuration. If no configuration file is found, the bootstrap program executes the setup script from the base IOS that has been loaded. This setup script asks a series of questions that are used to generate an initial router configuration. Each question asked has a default answer associated with it. The default choice is displayed in brackets at the of the prompt.

Running the Setup Program

The setup script can be run from the privileged command mode at any time. The privileged EXEC mode (most often referred to as Enable ...

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