Table of Contents
ROM Monitor
The ROM monitor firmware runs when the router is powered up or reset. The firmware helps to initialize
the processor hardware and boot the operating system software. You can use the ROM monitor to
perform certain configuration tasks, such as recovering a lost password or downloading software over
the console port. If there is no Cisco IOS software image loaded on the router, the ROM monitor runs
the router.
This appendix contains the following sections:
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Entering the ROM Monitor
To use the ROM monitor, you must be using a terminal or PC that is connected to the router over the
console port.
Perform these steps to configure the router to boot up in ROM monitor mode the next time it is rebooted:
Command
Step 1
enable
Step 2
configure terminal
Step 3
config-reg 0x0
OL-14210-01
Entering the ROM Monitor
ROM Monitor Commands
Command Descriptions
Disaster Recovery with TFTP Download
Configuration Register
Console Download
Debug Commands
Exiting the ROM Monitor
Purpose
Enters privileged EXEC mode.
Enter your password if prompted.
Enters global configuration mode.
Resets the configuration register.
A P P E N D I X
Cisco Secure Router 520 Series Software Configuration Guide
C
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