[nsp] Cisco 3660 Password Recovery

Clayton Zekelman clayton at mnsi.net
Sat Apr 19 13:47:18 EDT 2003


Removing the on board flash and booting into 12.0.7T then following your
directions got me into rommon where I could do a normal password recovery
procedure.  

Your procedure didn't work with the 12.1(5)YB2 release that the router came
with - it asked me the factory default question, then merrily went on its
way booting with the startup config anyways.

Thankfully, its cracked and working.

I got the hint from http://www.heinzulm.com/password.html -he was running
12.0(7)T and succesfully got it on a 2600, so I figred I'd try it on my 3660.




At 05:02 PM 18/04/2003 +0200, Richard Gallagher wrote:
>Clayton,
>
>If you really have "no service password-recovery" set then you are not going
>to be able to get the original config back, there is no way. The only option
>you have it to set the router back to factory defults. Follow the procedure
>below:
>
>
>1. Boot the system
>2. Wait until after the system decompresses the IOS image:
>          
>Self decompressing the image :
>################################################]
>         
>3. Hit break within five seconds.
>4. The 3600 will ask if you want to reset the router to the factory default
>configuration:
>                 
>PASSWORD RECOVERY IS DISABLED.
>Do you want to reset the router to factory default
>configuration and proceed [y/n] ? y
>Reset router configuration to factory default.
>
>HTH,
>
>Rich
>
>Clayton Zekelman wrote:
>> 
>> We have a 3660 router that we pulled from one of our POP's and were
about to redeploy it, but
>> we ran into a nasty problem.
>> 
>> The unit isn't accepting the password we have on record for it, and to
top it all off, somehow the "no service password-recovery" option got set.
I have no idea how this happened.
>> 
>> I tried a procedure I found on the web which showed how to bypass this
setting at a specific phase of the boot cycle, but it didn't work on our
router.  The example was shown with 12.0.7(T) on a C2600.  I'm going to try
to put a 12.0.7(T) image for the 3660 on a flash card, and force a boot
from it by removing the on board flash.  Am I heading in the wrong direction?
>> 
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>
>-- 
>
>#------------------------------------------------------------------#
>#    _.|._.|._    | Richard Gallagher  | Direct: +32 2 704 5421    #
>#  Cisco EuroTAC  | CCIE #7211         | Email: rgallagh at cisco.com #
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---
Clayton Zekelman
Managed Network Systems Inc. (MNSi)
344-300 Tecumseh Rd. E.
Windsor, Ontario
N8X 5E8

tel. 519-985-8410
fax. 519-258-3009


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