Specifications

CHAPTER
Configuring the Router 4-1
Configuring the Router
4
This chapter describes the procedures for configuring the model 2520, model 2521, model
2522, and model 2523 routers, and contains the following sections:
• Booting the Router for the First Time
• Configuring the Router
• Specifying the Boot Method
• Checking the Configuration Settings
• Getting More Information
This chapter provides minimum software configuration information; it is not meant to
provide comprehensive router configuration instructions. Detailed software configuration
information is available in the Cisco IOS configuration guide and command reference
publications (available on the documentation CD that came with your router or you can
order printed copies.)
To configure the multiport serial routers, a terminal must be connected to the console port.
Booting the Router for the First Time
Each time you power on the router, it goes through the following 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 ROM 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