How to Routers Recover password
Basically there is two ways of recovering lost password
Method-1
As soon as the router/switch starts press Ctrl+Break Key Together within 1 min of it to start.
Ctrl+break --- for rommon
mode
Default
Confrig-register value 0x2102
1.
Press Break on the terminal keyboard within 60 seconds
of power up in order to put the router into ROMmon.
2.
Rommon>confreg 0x2142 .
This
step bypasses the startup configuration where the passwords are stored.
3.
rommon 2>Reset .
The
router reboots, but ignores the saved configuration. Now you are in setup mode
4.
Type no after each setup question, or press Ctrl-C in order to skip the initial setup
procedure.
5.
Type configure memory or copy startup-config running-config in order to
copy the nonvolatile RAM (NVRAM) into memory.
Do not type copy running-config
startup-config or write. These
commands erase your startup configuration.
Now
you can change the password and save the configuration in startup configuration
in nvram
6.
Router-Rcy(config)#config-register 0x2102-----------------to set
the default config-reg value
7.
Type write memory or copy running-config
startup-config in order to commit the changes.
Summary:-
Router-Rcy#reload
###################################ctrl+break
Rommon>confreg
0x2142
Rommon>reset
###################################
Router-Rcy>
Router-Rcy#copy
startup-config running-config
Router-Rcy(config)
#-----------------change the required password
Router-Rcy
(config)#config-register 0x2102
Router-Rcy#copy
running-config startup-config
Router-Rcy
#exit
Now
you know the password
Procedure 2
Complete these steps
in order to recover your password:
1.
Shut down the router.
2.
Remove the compact
flash that is at the back of the router.
3.
Power on the router.
4.
Once
the Rommon1> prompt appears, enter this command:
5. Rommon1> confreg 0x2142
6.
Insert the compact
flash.
7.
Type reset.
8.
Router-Rcy>enable.
9.
Router-Rcy#configure memory
create
a new user name and password:
Router-Rcy#config-register 0x2102
Router-Rcy#write memory
10. Reload the router, and then use the new user name and
password to log in to the route
