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Cisco 7401ASR Installation and Configuration Guide
OL-5419-01 B0
Chapter3 Starting and Configuring
Configuring a Cisco7401ASR Router
Step5 When you start up the router for the first time, the system automatically enters the setup facility, which
determines which port adapter is installed and prompts you for configuration information. On the
console terminal, after the system displays the system banner and hardware configuration, you wil l see
the following System Configuration Dialog prompt:
--- System Configuration Dialog ---
At any point you may enter a questions mark ‘?’ for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets ‘[]’.
continue with configuration dialog? [yes]:
You have the option of proceeding with the setup facility to configure the interfaces, or exiting from
setup and using configuration commands to configure global (syste m-w ide ) a nd i nte rface -spe ci fic
parameters. You do not have to configure the interfaces immediately; however, you cannot enable the
interfaces or connect them to any networks until you have configured them.
Many of the port adapter LEDs do not go on until you have configured the interfaces. To verify correct
operation of each interface, complete the first-time startup procedures and configuration, and then refer
to the configuration note for the port adapter for LE D de scri pti ons and t o che c k th e stat us of t he
interfaces.
If the system does not complete each of the steps in the startup procedure, proceed to Chapter5,
“Troubleshooting,” for troubleshooting recommendations and procedures.
Configuring a Cisco 7401ASR Router
You can configure your Cisco 7401ASR router using one of the procedures described i n th e following
sections:
•Performing a Basic Configuration Using AutoInstall, page 3-11
•Performing a Basic Configuration Using the Setup Facility, page 3-11
•Performing a Basic Configuration Using Global Configuration Mode, page 3 -20
Follow the procedure that best fits the needs of your network configuration.
Note You need to acquire the correct network addresses from your system administrator or co nsult y our
network plan to determine correct addresses before you can complete the router configurat ion.
Before continuing the configuration process, check the current state of the router by entering th e show
version command. The show version command displays the release of Cisco IOS software that is
available on the router. Sample output of the show version command appears in the “Viewing Your
System Configuration” section on page3-25.