Please Follow the below given steps to Upgrade the IOS of a Router.
•
Connect Consol cable to Router.
•
Give IP address 192.168.1.1 to Fast Ethernet
interface.
•
Enable Telnet in Router.
•
Give the same range IP address to Computer
(192.168.1.2)
•
Install TFTP on Computer.
•
Connect Cross cable to Router Fast Ethernet
interface.
•
Ping Router IP from PC.
•
Click on TFTP.EXE
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It will automatically take the IP address of
that computer.
•
Telnet the Router.
•
Type “Show flash” .
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Select the IOS File name.
•
Type “copy flash tftp” to take the backup of
current IOS.
•
Give the IP address of Remote computer.
•
Give the source & destination file name.
•
Type “Delete c1841-Lank9.12.3.222.bin” to delete
the old IOS from the router.
•
Press enter key once more to confirm deletion of
IOS.
•
Type “copy tftp flash”
•
Give the IP address of Remote computer.
•
Give the source & destination file name.
•
Reboot the router
•
In Configuration Mode type “Boot system flash”
•
Type “show flash” to confirm.
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