Rommon the router to iOS in the mode

Background introduction:

Small series bought a 2-hand Cisco routing, after the Router#eraser start-config command, found that there is still a lot of extra stuff in the flash,

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Ran the Router#eraser Flash: command while forgetting to back up iOS. When the results are restarted, iOS cannot be loaded, so it can only be poured into the router in Rommon mode

Operation Steps:

1. Find a PC to install 3CDaemon software to act as a TFTP server, set the IP address and router on the same network segment, download the appropriate iOS to the TFTP server root directory, and Note that UDP port 69 is open on the firewall;

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2. Enter the following commands in order (set IP and network management according to your own situation), tftp_file to be consistent with the root directory

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3. After successful, enter boot, this time will restart, you can log on the system normally

Rommon the router to iOS in the mode