How to install the IOS in router Using Tftp Server....

Before you Install the IOS you have to install the TFTP32 in your computer to make computer as a tftp server.

http://www.solarwinds.com/products/freetools/free_tftp_server.aspx

Step-1------1--Connect  your router with Console Cable.2-Check the Flash,(#show flash)3-Romove the Flash file (Existiing IOS)(#delete flash: c1700-   adventerprisek9-mz.124-8)4--Reload the router.(#reload)5--Then you can see the Rmon mode of router.

Step-2(Configure  the below Command.)-------

rmon 2 > IP_ADDRESS=10.0.0.1

rmon 3 > IP_SUBNET_MASK=255.255.255.0

rmon 4 > IP_DEFAULT_GATEWAY=10.0.0.2(TFTP Server)

rmon 5  > TFTP_SERVER=10.0.0.2

rmon 6 > TFTP_FILE=c1700-adventerprisek9-mz.124-8.bin

rmon 7 >  tftpdnld

rmon  >   Y

Step-3(After Copy completion from TFTP to router)
-----------------------------------------------------------------
rmon  8  > boot flash:c1700-adventerprisek9-mz.124-8.bin

Then you can operate your router by new IOS..