My connection method is that the two routers are connected through the E0 port. I first configure the E0 port on the good router (cisocA) to have the IP address 192.168.10.90 (configure the IP address at will, as long as the two E0 ports can PING each other) and then enter tftp-server c2500-js-l in the configuration mode. (This is the IOS file name in your good IOS. Use show version to view your IOS file name.
After this A has been configured, then go to B to configure it. First, let this machine boot into BOOT mode. Enter config-register 0x2101 in the global configuration mode. Then restart the router. After starting to BOOT mode, configure your E port. After entering BOOT mode, enter copy tftp flash, prompt you to enter the TFTP server, and then enter the file name.
The specific operation steps are as follows:
cisocA#conf t
cisocA(config)#tftp-server c2500-js-l.
cisocA(config)#int e0
cisocA(config-if)#ip add 192.168.10.90 255.255.255.0
cisocA(config-if)#no shut
ciscoB(config)#conf t
ciscoB(config)#config-register 0x2101
ciscoB(config)#end
ciscoB#reload
System configuration has been modified. Save? [yes/no]: y
ciscoB(boot)>enable
ciscoB(boot)#conf terminal
ciscoB(boot)(config)#int e0
ciscoB(boot)(config-if)#ip add 192.168.10.80 255.255.255.0
ciscoB(boot)(config-if)#no shut
ciscoB(boot)(config-if)#end
ciscoB(boot)#erase flash
System flash directory:
File Length Name/status
1 15533612 c2500-js-l.
[15533676 bytes used, 1243540 available, 16777216 total]
Erase flash device? [confirm]
Are you sure? [yes/no]: y
Address or name of remote host [192.168.10.80]? 192.168.10.90
Source file name? c2500-js-l.
Destination file name [c2500-js-l.]?
Erase flash device before writing? [confirm] (Enter)
Copy 'c2500-js-l.' from server
as 'c2500-js-l.' into Flash WITH erase? [yes/no]y
After entering Y, the program will automatically COPY IOS. After successful, you can configure it as follows
ciscoB(config)#config-register 0x2102
ciscoB(config)#reload
The steps are completed
Article entry: csh Editor in charge: csh