Reset Router to Default Configuration With the router powered off, connect the power cord to your router, and plug the power cord into your power source. To set a ROMmon environment variable, type the variable name, an equal sign (=), and the value for the variable. To use TFTP in ROMmon mode, you must first set a few environmental variables, including the IP address of the LAN interface, and then use the tftpdnld command to restore the image. After you let the button go you should now be in ROMMON mode. You need to hold the button in for around 10 seconds and then let go. The first thing you need to do is turn the switch on while pressing the express setup button on the switch with a paperclip or thumbtack. Reload, initialize, or power cycle the router without having a Cisco IOS Software image to boot from. These are three ways the router can enter ROM Monitor (ROMmon) mode (rommon#>): Reload, initialize, or power cycle the router with the configuration register boot field set to 0. ROMMON or also known as bootstrap program is you can say a mini operating system in the Cisco devices that helps to initialize the processor hardware and boot the operating system software (Cisco IOS).Ĭore Issue. Type no after each setup question, or press Ctrl-C in order to skip the initial setup procedure. The router reboots, but ignores the saved configuration. This step bypasses the startup configuration where the passwords are stored. Type confreg 0x2142 at the rommon 1> prompt in order to boot from Flash.

11 How do you access ROMmon mode on a Cisco 2960 switch?.

9 How do I enter ROMmon mode on a Cisco router 1841?.

3 Why is there a router in Rommon mode?.

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