cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1680
Views
5
Helpful
8
Replies

Help with Password Recovery

westy9564
Level 1
Level 1

I've been given an old Cisco 2500 router from work and the enable mode is password protected. I've read the password recovery document. The ctrl-break key sequence don't work. The command o/r 0x2142 returns "% Unknown command or computer name, or unable to find computer address". The IOS version is Cisco Internetwork Operating System Software

IOS (tm) 2500 Software (C2500-I-L), Version 11.2(18), RELEASE SOFTWARE (fc1)

I'm using Hyperterminal version 5.1 on Windows XP SP2.

What else can I try to get into enable mode? Or wipe out the existing startup config? Is there a way to do it with the jumpers?

8 Replies 8

Roberto Salazar
Level 8
Level 8

Do you mean that ctrl+break key after power cycling the box do not work? o/r 0x2142 works if you're in rommon already. What is rommon, it's the mode the router will go into if you succesfully break the boot up sequence.

http://www.cisco.com/en/US/products/hw/routers/ps233/products_password_recovery09186a0080094795.shtml

yes, i'm saying that the ctrl+break key sequence is not working. i am pressing the keys within 60 seconds. and, i read that document before posting.

balajitvk
Level 4
Level 4

Hi Westy,

Ctrl-break is seems to be the correct break key sequence. But Press the Break key on the terminal within 60 seconds of turning on the router.

Still if you find any probs just go thro troubleshooting tips given in this link,

http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080174a34.shtml#topic2

Rgs,

Hello,

not sure if this helps, but try Hyperterminal Private Edition version 6.3, you can download it here:

HyperTerminal Private Edition version 6.3

http://www.hilgraeve.com/htpe/index.html

Regards,

Nethelper

I have a 2501 that I am using for CCNA practice. After reading this thread I decided to try to interrupt the boot sequence on my router as a learning experience.

I too am unable to do so!

Perhaps I am mistaken about what the "break key" is when using hyper terminal.

I assumed that it meant holding down the "Ctrl" key while pressing the "c" key. Is this correct?

The book that I am using is very vague on this point.

Also Hyper Terminal can be configured with many options. [ANSI or VT100 etc.] Could a specific configuration be needed for the break function to work?

i was on the same boat with an old router.

i finally got in by pressing "ctrl + esc" instead of "ctrl + break".

further, please check this do out as cisco suggested break key combinations:

http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080174a34.shtml#topic1

OK I get it now!

The "Break" key is the one labeled "Pause Break" [It's in the upper right corner of the keyboard on my laptop and it's next to the "scroll lock" key on my desktop keyboard.]

Holding down "Ctrl" and pressing this key works like a charm. I get a > prompt after an abort message and pressing "o" gets the Configuration Register menu!

Thanks a lot for clearing this up.

it's good to learn that the issue has been resolved.

according to cisco:

Why should I rate posts?

If you see a post that you think deserves recognition, please take a moment to rate it.

You'll be helping yourself and others to quickly identify useful content -- as determined by members. And you'll be ensuring that people who generously share their expertise are properly acknowledged. As posts are rated, the value of those ratings are accumulated as "points" and summarized on the Member Profile page and on each member's Preferences page.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: