AIS AI2524 user manual Configuration Overview, Introduction Boot Router for First Time

Chapter 3: Configuration Overview

Chapter 3: Configuration Overview

Introduction

Boot Router for First Time

This chapter provides a brief overview of three ways that the AI2524 can be configured including:

zConfiguration Mode

zAutoInstall

zSystem Configuration Dialog

These three and other procedures are described in detail in this manual.

The first time the router is powered and booted, you must enter basic configuration information and save the configuration to a file in

NVRAM.

Each time you power on the router, it goes through the boot sequence:

1.The router goes through power-on self-test diagnostics to verify basic operation of the CPU, memory, and interfaces.

2.The system bootstrap software (boot image) executes and searches for a valid Cisco IOS image (router operating system software). The source of the Cisco IOS image (Flash memory or a Trivial File Transfer Protocol [TFTP] server) is determined by the configura- tion register setting. The factory-default setting for the configura tion register is 0x2102, which indicates that the router should attempt to load a Cisco IOS image from Flash memory.

3.If after five attempts a valid Cisco IOS image is not found in Flash memory, the router reverts to boot ROM mode (which is used to install or upgrade a Cisco IOS image).

4.If a valid Cisco IOS image is found, then the router searches for a valid configuration file.

August 1997	Page 3-1
2524UM