Cisco Systems OL-6426-02 manual Using the Tftp Download Command, Retrytimes, TFTPTIMEOUT= time

Appendix C ROM Monitor

Disaster Recovery with TFTP Download

Number of times the router attempts ARP and	TFTP_RETRY_COUNT=
TFTP download. The default is 7.	retry_times
Length of time, in seconds, before the download	TFTP_TIMEOUT= time
process times out. The default is
2,400 seconds (40 minutes).
Whether or not the router performs a checksum	TFTP_CHECKSUM=setting
test on the downloaded image:
1—Checksum test is performed.
0—No checksum test is performed.

Using the TFTP Download Command

Perform these steps in ROM monitor mode to download a file through TFTP.

Step 1 Use the appropriate commands to enter all the required variables and any optional variables described in preceding sections.

Step 2 Enter the tftpdnld command as follows:

rommon 1 > tftpdnld -r

Note The -rvariable is optional. Entering this variable downloads and boots the new software but does not save the software to flash memory. You can then use the image that is in flash memory the next time you enter the reload command.

You will see output similar to the following:

IP_ADDRESS: 10.3.6.7

IP_SUBNET_MASK: 255.255.0.0

DEFAULT_GATEWAY: 10.3.0.1

TFTP_SERVER: 223.255.254.254

TFTP_FILE: c1800-advsecurityk9-mz

Do you wish to continue? y/n: [n]:

Step 3 If you are sure that you want to continue, enter y in response to the question in the output:

Do you wish to continue? y/n: [n]:y

The router begins to download the new file.

If you mistakenly entered yes, you can enter Ctrl-Cor Break to stop the transfer before the flash memory is erased.

Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide

OL-6426-02 C-5