While a network administrator forgot the password over the cisco router or switch, you need to reset password for cisco router or recover password for cisco router, this is a common mistaken for a Network Administrator, always forgot the password if long time did not do configuration for the cisco router. how to reset cisco router password? if you forgot the password to login cisco router?
Router>enable
Password:
Password:
Password:
% Bad secretsRouter>show version
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 18-Jul-07 06:21 by pt_rel_teamROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.System returned to ROM by power-on
System image file is “c2800nm-advipservicesk9-mz.124-15.T1.bin”This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.htmlIf you require further assistance please contact us by sending email to
[email protected].cisco 2811 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memory
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
2 FastEthernet/IEEE 802.3 interface(s)
239K bytes of NVRAM.
62720K bytes of processor board System flash (Read/Write)Configuration register is 0x2102
Router>
Just remember the current cisco router register number “2102“, after that, on and off your cisco router, press crtl + backspace + break to enter the NVram
Self decompressing the image :
######################
monitor: command “boot” aborted due to user interrupt
rommon 1 > confreg 2142
rommon 2 > reset
System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
cisco 2811 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memorySelf decompressing the image :
#######################
What is Rommon? it stand for ROM Monitor, we require to enter rommon to change the register number, when you enter rommon 1> follow above code in bold, type in confreg 2142, After that type in “reset” or reboot the cisco router, once reboot you are actually enter the router which the register number is 2142 you can just set the password exactly same with cisco router basic configuration step
Router>ena
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#ena password newpass
Router(config)#ena secret newsec
Router(config)#config-register ox2102
Router(config)#exit
Router#sh ver
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 18-Jul-07 06:21 by pt_rel_teamROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.System returned to ROM by power-on
System image file is “c2800nm-advipservicesk9-mz.124-15.T1.bin”This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.htmlIf you require further assistance please contact us by sending email to
[email protected].cisco 2811 (MPC860) processor (revision 0x200) with 60416K/5120K bytes of memory
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
2 FastEthernet/IEEE 802.3 interface(s)
239K bytes of NVRAM.
62720K bytes of processor board System flash (Read/Write)Configuration register is 0x2142 (will be 0x2102 at next reload)
Router#copy run start
Destination filename [startup-config]?
Building configuration…
[OK]
Router#reload
Reload mean reboot the router, after reboot the router, you can access with the new password already. This is how we reset cisco router password, some said hack cisco router login password , but this is the correct way to recover password for cisco router.
does this work on switch ? need to recover a password for a 2960 switch
ehm. really? its new info to me.
works great! Follow instructions! Thanks Lots!
This basically appears 100% same in CCNA virtual lab book..which sell at price of +-rm300…with video provided
Thanks a bunch, great tip
hi works great thanks for taht
great to heard that…
what if you can’t access the usermode? How will you know the current version? Thank you.
(I’m new to this but willing to learn) 🙂
Hi,
It worked..Thanks a ton!!
Very good info we will be learning this in my course (Accessing the WAN) according to what my teacher told me in class last time, Network Security.
dan
Router(config)#config-register ox2102
The o is a zero
Router(config)#config-register 0x2102
Caught me off gaurd for a min.
i lost all my configuration.. 🙁
does it work like this :
copy star run
enable secret passwords
config-register 0x2102
write mem
reload
you can always have a try 😀
Please i have one cisco 2811 and when i boot, after the bootstrap i receive one error message.
ERROR: NO MEMORY DETECTED !
DOING SYSTEM RESET.
I don’t know what to do. I have try to break but nothing. when i press crtl + backspace + break
i have no answer from the router. I have put one flash memory card for 64 Mb. I’m suspected that my rom have a problem, because without Flash it has to go to the Rom.
Please help me.
Great Stuff mate!!!
Sir,
First thanks for this trick.If any more tricks of recovery the router all series password.I will be very thank fully to you.
hi it is a very useful for me.so please continue
Good morning –
I too lost my configuration – but lucky, I did not want it.
Please confirm that the command:
“copy run start” works, but remove your config.
“copy start run” will leave your current config
Thanks
hey this is the perfect procedure to do it.
it works g8…
thanx
its work for my final year project…thanx
This is NOT the correct procedure if you want to keep your current configuration. Should be copy start run!
Actually, once the router boots up and you are at the priv users mode aka “enabled” mode, that is where you should run the command “copy start run” in order to copy your old configuration over so you don’t lose anything. Then change your password and your config-register back to 0x2102. After that, do a “copy run start” to save your changed password as well as changing the config-reg back to normal.
It’s almost ok, but first when we reload router after got register changed in 2142 need to copy start to run first, change register back to 2102, change password and after that copy run to start (write memory), in this way we have configuration untouched but with a new password, for example watch:
http://getnetworking.net/networking/view.php?id=2
or this
http://www.youtube.com/watch?v=1FTAo1VQYs8
I Cant Get up the very first thing? the one pictured? Plz Help!!!!