Password Recovery Of Router---
If you are newly appointed in a organization and previous Network Admin have set password for router and no body have any idea about that password. So now what to do---
Here are some simple steps by which you'll understand how you can recover your router password or can say how you can set new password without knowing existing password.
1.Reboot the router
2.Break the router booting process (by pressing break button)
3.Now it'll show a message like-- monitor: command "boot" aborted due to user interrupt
4.rommon 1> confreg 0x2142
5.rommon 1>reset ,
and press enter and router will reboot again, and.
6.Router#copy startup-config running-config and press enter for confirmation
7.Now apply a New password
8.Again set the register to it's default
Router(config)#config-register 0x2102
Configuration Register--
-16 Bit Software register that's written into NVRAM
-By default config register is set to load the Cisco IOS from flash mamory
config
register 2 | 1 | 0 | 2
| | |
Bit | | |
Number 15 14 13 12| 11 10 9 8 | 7 6 5 4 |3 2 1 0
| | |
Binary 0 0 1 0 | 0 0 0 1 | 0 0 0 0 |0 0 1 0
So if we make 1 on 6th position it'll ignore the NVRAM contents.
If you are newly appointed in a organization and previous Network Admin have set password for router and no body have any idea about that password. So now what to do---
Here are some simple steps by which you'll understand how you can recover your router password or can say how you can set new password without knowing existing password.
1.Reboot the router
2.Break the router booting process (by pressing break button)
3.Now it'll show a message like-- monitor: command "boot" aborted due to user interrupt
4.rommon 1> confreg 0x2142
5.rommon 1>reset ,
and press enter and router will reboot again, and.
6.Router#copy startup-config running-config and press enter for confirmation
7.Now apply a New password
8.Again set the register to it's default
Router(config)#config-register 0x2102
Configuration Register--
-16 Bit Software register that's written into NVRAM
-By default config register is set to load the Cisco IOS from flash mamory
config
register 2 | 1 | 0 | 2
| | |
Bit | | |
Number 15 14 13 12| 11 10 9 8 | 7 6 5 4 |3 2 1 0
| | |
Binary 0 0 1 0 | 0 0 0 1 | 0 0 0 0 |0 0 1 0
So if we make 1 on 6th position it'll ignore the NVRAM contents.
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