Specifications

A-11
Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Appendix A Identifying Hardware Problems with the ROM Monitor
ROM Monitor Commands
[0]: 0
Configuration Summary
enabled are:
diagnostic mode
break/abort has effect
console baud: 9600
boot: the ROM Monitor
do you wish to change the configuration? y/n [n]:
You must reset or power cycle for new config to take effect
confreg [hexnum]
Enter the confreg [hexnum] command to change the virtual configuration register to the value specified.
The value is always interpreted as hexadecimal.
Modifying the Configuration Register from the Operating System Software
The virtual configuration register resides in NVRAM. You can display or modify the register from either
the ROM monitor or the operating system software. When you change the register, the new value is
written into NVRAM, but is not effective until you reset or power-cycle the AGM.
To modify the configuration register from the operating system software, enter the following commands:
Gateway> enble
Gateway# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Gateway(config)# config-register 0x0
Gateway(config)# end
Gateway#
Boot and System Image Recovery Commands
If your AGM will not boot, the IOS software image in Flash memory might be corrupt. If so, you can
obtain a new one with the tftpdnld ROM monitor commands.
tftpdnld
Enter the tftpdnld command to download an IOS software image from a remote server into Flash
memory using TFTP. (You must have a TFTP server directly connected to the front-panel Ethernet
management port.) Monitor variables are used to set up parameters for the transfer.
Usage: tftpdnld [-rxe]
Note In nonprivileged mode, only the -r command line option is available.
The syntax for specifying variables is as follows:
VARIABLE_NAME=value