Reset Cisco Router to Factory Default Settings

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[symple_box style=”boxerror”]
This tutorial is to factory reset Cisco Router in case you forget router password or require to flush present configuration. Note that you will lose existing configuration on Cisco Router.
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Step 1: Reload router. If you do not know the password, just perform hard reboot.

KVN-SWITCH#reload
Proceed with reload? [confirm]

Step 2: Wait for 10 seconds of startup and send a break signal to terminal

If you are using PUTTY, right click on the top of PUTTY Window, and select Special Command > Break

*Jan 22 06:36:23.990: %SYS-5-RELOAD: Reload requested by cisco on console. Reload Reason: Reload Command.
System Bootstrap, Version 15.4(1r)T1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2014 by cisco Systems, Inc.

Total memory size = 512 MB
Field Upgradeable ROMMON Integrity test


ROM: Digitally Signed Production Software
C887VA-K9 platform with 524288 Kbytes of main memory
Main memory is configured to 32 bit mode

Upgrade ROMMON initialized

monitor: command “boot” aborted due to user interrupt
rommon 1 >

Step 3: Now you are in rommon prompt

Step 4: At the prompt, type the following command confreg 0x2142 to skip the existing configuration on startup.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

Step 5: Type the following command to reset the router

rommon 2 > reset

Step 6: After router has loaded, press No to initial configuration dialogue

— System Configuration Dialog —
Would you like to enter the initial configuration dialog? [yes/no]: no

Step 7: At prompt, type as follows

Router>en

Router#write erase
Erasing the nvram filesystem will remove all configuration files! Continue? [confirm]y[OK]
Erase of nvram: complete

Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#config-register 0x2102
Router(config)#end
Router#reload

System configuration has been modified. Save? [yes/no]: no
Proceed with reload? [confirm]

Step 8: After reboot, your router is restored to factory default settings.



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