How to: Reset a Cisco Router Back to Factory Defaults
You can use config-register 0x2102 command to reset a Cisco router back to Factory Defaults. Note: to check the configuration register on the router by issuing the show version command. The configuration register setting is displayed in the last line of the show version command output, and should be set to 0x2102.
This is example how to reset a Cisco router back to Factory Defaults:
This is example how to reset a Cisco router back to Factory Defaults:
Router1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Enter configuration commands, one per line. End with CNTL/Z.
Router1(config)#config-register 0x2102
Router1(config)#end
Router1#wr erase
Erasing the nvram filesystem will remove all configuration files! Continue? [confirm]
[OK]
Erase of nvram: complete
Erasing the nvram filesystem will remove all configuration files! Continue? [confirm]
[OK]
Erase of nvram: complete
Router1#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]
Tags: Cisco IOS
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