The procedure is as follows:
1. Install the Cisco TFTP serversoftware file named tftpserver1-1-980730.exe on a Windows computer );
2. Use winzipsoftware to decompress the c2500-i-l.113-6.zip file, decompress the file name as a c2500-i-l.113-6.bin, and paste the file into a subdirectory in the hard disk, such as D: \ cisco.
3. Start the Cisco TFTP Server software;
4. Select "View"-"Options" on the TFTP Server software interface. On the Options interface, select "Browse" on the "TFTP Server root" option ", point this directory to the directory where the c2500-i-l.113-6.bin file is located, such as D: \ cisco or others.
5. Enter the vro to be upgraded, configure the ethernet address to be in the same network segment as the computer where the TFTP software is installed, and the computer can be pinged or not in the same network segment, as long as the ping is successful ).
6. In the vro privileged state, such as Router #), type Copy tftp flash.
The system prompts Address or name of remote host []? Enter the IP address of the machine where the TFTP software is located.
System prompt: Source filename []? Enter the name of the IOS software file to be upgraded, in this example, c2500-i-l here is the letter l, not number 1 ). 11 these two are numbers 1, not letters l) 3-6.bin note. bin cannot be lost ).
The system prompts Destination filename []? Press enter directly, indicating that it is consistent with the source file name.
Follow the prompts to delete the previous IOS file and confirm the message ).
Wait until the system prompts that the upgrade is complete.
The entire process is about 2-3 minutes.
7. Restart.
Note: During the upgrade process, do not lose power or cause problems such as poor network between the router and the TFTP server!