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Cisco VG202 and Cisco VG204 Voice Gateways Software Configuration Guide
OL-16191-01
Appendix A Using the ROM Monitor
ROM Monitor Commands
DETAILED STEPS
Timesaver
Break (system interrupt) is always enabled for 60 seconds after the voice gateway reboots, regardless of
whether it is set to on or off in the configuration register. During this 60-second window, you can break
to the ROM monitor prompt by pressing the Break key.
ROM Monitor Commands
Enter
?
or
help
at the ROM monitor prompt to display a list of available commands and options, as
follows:
rommon 1 >
?
alias
set and display aliases command
boot
boot up an external process
confreg
configuration register utility
cont
continue executing a downloaded image
context
display the context of a loaded image
cookie
display contents of cookie PROM in hex
Command or Action
Purpose
Step 1
enable
Example:
VG# enable
Enters privileged EXEC mode.
Step 2
configure terminal
Example:
VG# configure terminal
Enters global configuration mode.
Step 3
config-register
value
Example:
VG(config)# config-register 0x2102
Resets the configuration register settings.
Step 4
exit
Example:
VG(config)# exit
Exits to global configuration mode.
Step 5
reload
Example:
VG# reload
Reboots the voice gateway with the new configuration
register value. The voice gateway remains in ROM
monitor and does not boot the Cisco IOS software.
As long as the configuration value is 0x0, you must
manually boot the operating system from the console.
See the
boot
command in the “
Command Descriptions
”
section in this appendix.
After the voice gateway reboots, it is in ROM monitor
mode. The number in the prompt increments with each
new line.
