Cisco Password

[Justin Bennett]

if it uses IOS (I think it does from my web searches) you can attach a 
serial cable (through console port) and do something like:

from: http://mt.oisec.net/


      Cisco Password Recovery

This weblog was intended primarily to have an easy way to type my 
documents and to make them searchable commentable etc..

After looking at my webservers webstatistics, I saw some search requests 
for Cisco password recovery techniques. Well then let's explain it here 
for everyone to read:

1) Attach a console cable to the Cisco
2) Reboot the Cisco
3) When the Cisco shows the first sign of life start sending it breaks 
(that's ctrl-F in minicom)
4) type /confreg 0x2142/
5) type /reset/
6) ... Cisco boots .... zZzZzZ ....
7) Enter no at the first question
8) voila a configless Cisco
9) now get into enable mode (but do NOT type conf term)
10) type /copy startup running/
11) voila a running cisco with full config in ENABLE mode
12) do your password changing stuff
13) type /write mem/
14) type /config-register 0x2102/ in configure mode
15) type /reload/

That was quite easy huh :)


Justin Bennett
Network Administrator
RHCE (Redhat Certified Linux Engineer)
Dynabrade, Inc.
8989 Sheridan Dr.
Clarence, NY 14031
 



On 04/02/2004 1:58 PM, Timothy J. Finucane wrote:

>Anyone have any good ideas on how to recover a lost password from Cisco
>SOHO 91 router?
>
>Thanks,
>
>Tim
>  
>