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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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Chapter 3 Installing the Router
IOS Software Configuration for the Router
Step 6 On the console terminal, verify that the console displays the system banner and
that the system and all interfaces initialize successfully.
If the power modules do not power up, or if the system or any interfaces do not
initialize properly, see Chapter 4, “Troubleshooting the Installation.” If you are
still unable to resolve the problem, contact your Cisco service representative for
assistance.
IOS Software Configuration for the Router
This section explains how to configure your system so that it can access the
network or enable other hosts on the network to access your system remotely by
means of a Telnet connection. You can find more information in the configuration
publications listed in the “If You Need More Information” section on page 3-82.
The system startup process and a procedure for performing a basic configuration
of your router are presented in the following sections:
• Cisco IOS Software Images, page 3-37
• Conditions to Check Before System Startup, page 3-38
• Overview of the Boot Process, page 3-39
• Starting the Router and Observing Initial Conditions, page 3-39
• Manually Booting the System, page 3-47
• Router Configuration, page 3-49

Cisco IOS Software Images

A default Cisco IOS software image for your system is available through any of
the internal or external sources described in Tabl e 3-11.