From: Jay Hennigan (jay@xxxxxxxx)
Date: Fri Feb 18 2000 - 22:42:04 GMT-3
On Fri, 18 Feb 2000, Jason T. Rohm wrote:
> The router is not at a boot prompt... even if it was, it does not respond
> to any input... I am looking for a way to completely reset the router. It
> almost has to be a hardware solution.
If it was messed up by banging on keys, it should also be fixable by banging
on keys. :-)
Try the following:
Connect a terminal set to 9600-N-8-1 to the console port.
Power the router off, then on.
Within 60 seconds, send a BREAK signal to the router. Exact details on
how to do this vary depending on the terminal emulator.
You should see a ">" prompt. [You're in ROM Monitor mode.]
Type "o/r 0x41" and hit ENTER. [You're telling it to boot from PROM.] [Note 1]
Type "i" and hit ENTER. [You're telling it to ignore its config.]
Answer "NO" to all of the setup questions.
Within a few seconds you should see a "Router(boot)>" prompt.
Type "enable" and hit ENTER. [No password needed since no config.]
You should see a "Router(boot)#" prompt.
Type "write erase" and hit ENTER. [You're clearing its config.]
Type "config term" and hit ENTER. [Configuring from terminal.]
Type "config-register 0x2102" and hit ENTER. [Setting sane boot parameters.]
Hold CTRL and hit "Z" [Exiting configuration mode.]
Type "reload" and hit ENTER. [Rebooting.]
You now have a virgin router. If it comes back as "Router(boot)>", then
its image on flash is corrupt and you'll need to TFTP a new image. Depends
on how badly it's been FUBARed.
Note: o/r 0x42 will cause it to boot from flash, which allows more
flexibility in being able to modify the config or change the password.
This is what you'll want to do if you get locked out of a router and
want to just change the enable secret. Like if during the CCIE lab
troubleshooting someone has changed your password. However, here we
just want to bring it back from the dead and don't care what the config
is, and we're not sure if flash is good.
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Jason T. Rohm
> Sent: Thursday, February 17, 2000 3:52 PM
> To: 'Jay Hennigan'
> Cc: Ccielab (E-mail)
> Subject: RE: Factory Test Mode?
>
>
> Jay,
>
> Thanks for the ideas. However, it will not respond to any input, so actions
> at the console are futile... what I am looking for is more of a hardware
> solution. Maybe a factory reset button that can be shorted with the cover
> off?
>
> I have entertained the idea that maybe it is just plain plain FUBAR... but
> that would not be my favorite answer.
>
> -Jason
>
>
> -----Original Message-----
> From: Jay Hennigan [SMTP:jay@west.net]
> Sent: Thursday, February 17, 2000 12:04 AM
> To: Jason T. Rohm
> Cc: Ccielab (E-mail)
> Subject: Re: Factory Test Mode?
>
> On Wed, 16 Feb 2000, Jason T. Rohm wrote:
>
> > I have a stumper...
> >
> > A cow-orker of mine managed to mess up a 2501 router. The router has
> > reverted to some sort of factory test mode that I am not familiar with.
> >
> > The symptoms are this:
> >
> > The console transmits at 2400 baud, but does not respond to input.
> > I can see the router doing a startup routine that is not normal. At the
> end
> > of the routine it asks if I would like to set the memory to "Factory
> Memory
> > settings" or something similar. It does not accept any key entries.
> > It will then start randomly resetting interfaces.
> > If I let it run for about 20 minutes, it will finally get to the point
> > where it asks to start the initial configuration dialog.
-- Jay Hennigan - Network Administration - jay@west.net NetLojix Communications, Inc. NASDAQ: NETX - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
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