Cisco iOS is removed, how to recover via TFTP
1 , install the TFTP software on one of the servers, and then place the iOS file in the default root directory of the TFTP server.
2 , connect the control line to the router, and connect the machine's network card and router Ethernet port with a crossover cable
3 , turn on the machine's super interrupt, on the router, (you can use Ctrl+break to enter Rommon mode) The window appears at the command line prompt: Rommon1>, enter the command after the prompt:
Rommon1>ip Address (IP address of router)
rommon2>ip_subnet_mask ( subnet mask for router)
Rommon3>default_gateway ( the default gateway address, or not, but also the TFTP server address)
rommon4>tftp_server ( IP address of the TFTP server)
Rommon5>tftp_file (iOS file name, only file name, no path required)
rommon6>tftpdnld Enter
Cisco IOS is removed, how to recover via tftp