Environment Variable Settings - Cisco 1100 Series Hardware Installation Manual

ROM Monitor Overview and Basic Procedures

Environment Variable Settings

The ROM Monitor environment variables define the attributes of the ROM Monitor. Environmental variables
are entered like commands and are always followed by the equal sign (=). Environment variable settings are
entered in capital letters, followed by a definition. For example:
IP_ADDRESS=10.0.0.2
Under normal operating conditions, you do not need to modify these variables. They are cleared or set only
when you need to make changes to the way ROM Monitor operates.
This section includes the following topics:
Frequently Used Environmental Variables
The table shows the main ROM Monitor environmental variables. For instructions on how to use these
variables, see the relevant instructions in this document.
Table 11: Frequently Used ROM Monitor Environmental Variables
Environmental variable
IP_ADDRESS=ip_address
IP_SUBNET_MASK=ip_address
DEFAULT_GATEWAY=ip_address
TFTP_SERVER=ip_address
TFTP_FILE=path/file
BOOT=path/file
Displaying Environment Variable Settings
To display the current environment variable settings, enter the set command :
rommon 1 > set
PS1=rommon ! >
LICENSE_SUITE=
LICENSE_BOOT_LEVEL=
MCP_STARTUP_TRACEFLAGS=00000000:00000000
RET_2_RTS=
RANDOM_NUM=1721712417
BSI=0
RET_2_RCALTS=
Description
Sets the IP address for the Management Ethernet
interface.
Sets the subnet mask for the Management Ethernet
interface.
Sets the default gateway that serves.
Sets the IP address of the TFTP server where a
bootable software image is located.
Sets the directory and filename of a bootable software
image.
Identifies the boot software for a node. This variable
is usually set automatically when the router boots.
Hardware Installation Guide for the Cisco 1100 Series Integrated Services Router
Environment Variable Settings
45