From: Manuel Berrocal (manueliux@xxxxxxxxx)
Date: Fri Feb 18 2000 - 23:43:47 GMT-3
I've heard you can send a break signal just connecting and disconnecting the
console port...
--- Jay Hennigan <jay@west.net> wrote:
> 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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