A-6
Cisco 7200 VXR Installation and Configuration Guide
OL-5013-09
Appendix A Configuration Register Information
Setting the Configuration Register While Running Cisco IOS
10 IP broadcasts with ones
09 Do not use secondary bootstrap
08 Break disabled
07 OEM disabled
06 Ignore configuration disabled
05 Fast boot disabled
04 Fan boot disabled
03-00 Boot to ROM monitor
If the prompt is “rommon1”, the confreg command displays the virtual configuration register currently
in effect. It includes a description of the bits. See the following sample output:
rommon1 > confreg
Configuration Summary
enabled are:
load rom after netboot fails
console baud: 9600
boot: the ROM Monitor
Do you wish to change the configuration? y/n [n]
Setting the Configuration Register While Running Cisco IOS
The configuration register can be set in the configuration mode with the config-register 0x value
command. See the following sample output:
Router# configure terminal
Enter configuration commands, one per line. End with CNTRL/Z.
Router (config)# config-register 0x2142
Router (config)# end
Router#
%SYS-5-CONFIG_I: Configured from console by console
Setting the Configuration Register While Running ROM Monitor
If the prompt is “>”, the or0x value command sets the configuration register. See the following sample
output:
>o/r 0x2102
>
If the prompt is “rommon1”, the confreg command sets the configuration register. It prompts the user
about each bit. See the following sample output:
rommon1> confreg
Confiuration Summary
enabled are:
load rom after netboot fails
console baud: 9600
boot: the ROM Monitor
do you wish to change the configuration y/n [n]: y
enable “diagnostic mode”? y/n [n]: n
enable “use net in IP bcast address”? y/n [n]: n
disable “use rom after netboot fails”? y/n [n]: n
enable “use all zero broadcast”? y/n [n]: n
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