Appendix B
Using the ROM Monitor
Procedure for the tftpdnld Command
Specify the required variables, for example:
Step 1
rommon 1> IP_ADDRESS=172.15.19.11
rommon 2> IP_SUBNET_MASK=255.255.255.0
rommon 3> DEFAULT_GATEWAY=172.16.19.1
rommon 4> TFTP_SERVER=172.15.20.10
rommon 5> TFTP_FILE=/tftpboot/c2600-i-mz
The syntax for specifying the variables is:
VARIABLE_NAME=value
The variables that you must specify include the following:
•
•
•
•
•
The following tftpdnld command variables are optional:
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•
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OL-2171-06
IP_ADDRESS—IP address for the router you are using.
IP_SUBNET_MASK—Subnet mask for the router you are using.
DEFAULT_GATEWAY—Default gateway for the router you are using (not required if the TFTP
server is in the same subnet as the router).
TFTP_SERVER—IP address of the server from which you want to download the image file.
TFTP_FILE—Name of the file that you want to download.
TFTP_VERBOSE—Print setting. The default is 1.
0=quiet—After you enter the tftpdnld command, the prompt
–
Do you wish to continue? y/n:
is the only information that appears until the command completes successfully or fails.
1=progress—Displays the state of the required tftpdnld command variables. Also displays
–
progress characters to indicate successful and lost packet transmissions.
2=verbose—Displays all progress print setting messages, along with error information. The
–
information provided by this print setting may be useful when debugging interface link and
configuration problems that may prevent connecting to the TFTP server.
TFTP_RETRY_COUNT—Number of times from 1 to 65535 that the ROM monitor will retry
address resolution protocol (ARP) and acknowledge (ACK). The default is 7 retries.
TFTP_TIMEOUT—Overall timeout of the download operation in seconds. The range is from
1 to 65535 seconds. The default is 7200 seconds.
TFTP_CHECKSUM—Performs a checksum test on the image. 0=checksum off, 1=checksum on.
The default is 1.
FE_SPEED_MODE—Sets the Fast Ethernet speed and duplex mode. 0=10 Mbps half-duplex mode,
1=10 Mbps full-duplex mode, 2=100 Mbps half-duplex mode, 3=100 Mbps full-duplex mode, and
4=auto-negotiation. The default is 4.
Specify the FE_SPEED_MODE variable only for routers with a Fast Ethernet network
Note
interface.
TR_SPEED_MODE—Sets the Token Ring speed and duplex mode. 0=4 Mbps half-duplex mode,
1=4 Mbps full-duplex mode, 2=16 Mbps half-duplex mode, and 3=16 Mbps full-duplex mode. The
default is 2.
Recovering Cisco IOS Software Images
Cisco 2600 Series Routers Hardware Installation Guide
B-11