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Cisco Router 1721 Reset

Posted on 2013-05-24
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Last Modified: 2013-05-24
I found an old Cisco router that I need to reconfigure. Below is a partial config, and as you can see it has a single user setup. I don't have the username/password for this. Either I need to reset the router to factory defaults, or I need to reset the user's password.

I followed the link below, and one of the commands was: enable secret <password>
What does this command do?

http://www.cisco.com/en/US/products/hw/routers/ps221/products_password_recovery09186a0080094773.shtml

After following the instructions, I am still unable to access the router config.


Current configuration : 1988 bytes
!
! Last configuration change at 15:57:39 PDT Fri May 28 2010
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname cisco-i02
!
enable secret 5 $1$iCu4#nUxRVIPNK7%tA75Gy9gyd.
!
username testusr password 7 09454F08090D181705051C
clock timezone PST -8
clock summer-time PDT recurring
ip subnet-zero
no ip source-route
ip name-server 66.155.200.200
ip name-server 207.59.200.200
ip name-server 66.251.200.200
no ip dhcp conflict logging

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Question by:pzozulka
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Expert Comment

by:agonza07
ID: 39194841
Can you send a screenshot of what prompt you are getting?

enable secret password-here allows you to set the enable password. In Cisco routers there are three levels of access

router>    (basic access, usually just a few show commands. Here you enter "enable" to go to enable mode)

router#    (allows for more show commands and debug commands. Enter "configure terminal" for next mode)

router(config)#  (this is where you make configuration changes.)
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by:pzozulka
ID: 39194885
Not much to show as I am unable to login using the username/password configured on the router.

With the instructions in the link above, I was able to see the running-config, but that doesn't help me reset the router to factory defaults or gain control of the user account.

Cisco
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Accepted Solution

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agonza07 earned 500 total points
ID: 39194929
Run through the procedure again.

Skip steps, 9, 10, 12, and 13.

For step 16 instead run the commands

copy run start

exit 

reload

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and you should be good.

For your case you have to do a combination of password recovery and factory reset.

http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/products_tech_note09186a00802017a1.shtml
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