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Cisco 3800 Series Integrated Services Routers: Overview
OL-6339-01
Using the Cisco IOS Startup Sequence
For more information on using the CLI for router configuration, see the “Configuration: Basic Software
Configuration Using the Cisco IOS Command-Line Interface” section, available at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/3800/sw/basic/index.htm
Verifying the Initial Configuration
To verify that the new interfaces are operating correctly, perform the following tests:
• To verify that the interfaces are operating correctly and that the interfaces and line protocol are in
the correct state—up or down—enter the show interfaces command.
• To display a summary status of the interfaces configured for IP, enter the show ip interface brief
command.
• To verify that you configured the correct hostname and password, enter the show configuration
command.
When you have completed and verified the initial configuration, your Cisco router is ready to configure
for specific functions.
Using the Cisco IOS Startup Sequence
This section explains how to use the Cisco IOS Startup sequence to configure your router, as an
alternative to using the Cisco Router and Security Device Manager (SDM).
Note SDM uses a default configuration file. If you have used SDM to configure your router, the router will
not execute the standard Cisco IOS startup sequence.
Using the Cisco IOS setup utility enables you to use TFTP or BOOTP configuration download, and to
use other features available through the standard Cisco IOS startup sequence.
The configuration file that was shipped with your router does the following:
• Provides an IP address for your Fast Ethernet interface, enabling an interface to your LAN
• Enables your router’s HTTP/HTTPS server, allowing HTTP access from your LAN
• Creates a default username (cisco) and password (cisco) with privilege level 15
• Enables Telnet and Secure Shell (SSH) access to the router from your LAN
To erase the existing configuration and use the Cisco IOS startup sequence, perform the following steps.
Note SDM remains installed on the router. See the “Enabling SDM on a Router Configured to Use the Cisco
IOS Startup Sequence” section on page 9 for instructions to reenable it.
Step 1 Connect the light blue console cable, included in your router shipment, from the blue console port on
the router to a serial port on your PC. Refer to the hardware installation guide that came with your router
for instructions.
Step 2 Connect the power supply to your router, plug the power supply into a power outlet, and turn on the
router. For instructions, see the quick start guide that came with the router.
(310 pages)
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