Sometimes it may require to reset enable password, console password and user password of Cisco switch, Cisco router.
Connect the PC to the console port of the router. Use this data:
o 9600 baud rate
o No parity
o 8 data bits
o 1 stop bit
o No flow control
Step 1: Reload router. If you do not know the password,
just perform hard reboot.
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
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
At prompt, type as follows
CiscoDevice> en
CiscoDevice #copy start run
CiscoDevice # sh run
Change enable secret
CiscoDevice # config t
CiscoDevice (config)# enable secret !340aGA#$mba
Change register back, Save and Reboot router
CiscoDevice (config)# config-register 0x2102
CiscoDevice # wr mem
CiscoDevice # reload
Cisco router will now boot with your old
configuration and you should be to access with your new password.