My 2501 was having a 4.14 bootstrap.  When I upgrade this IOS to 12.0, I got
"Illegal keyword - 'classless'".  However, my other 2500 router with
bootstrap version 5.2 ran fine with the same IOS version.

Bootstrap upgrade is a hardware upgrade.  You can obtain thes ROM chips from
Cisco...


""[EMAIL PROTECTED]"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Everyone,
>
> I would like to upgrade to my 2500s to IOS 12.0, what is the minimum
required bootstrap or boot-image.  If I were to get the bootstrap, is it a
software upgrade or hardware upgrade.  How much does it cost?
>
> Thanks for your input!
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Robert Nelson-Cox
> Sent: Wednesday, March 14, 2001 2:01 PM
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Re: Upgrade bootstrap
>
>
> >From: Thomas <[EMAIL PROTECTED]>
> >Reply-To: Thomas <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Upgrade bootstrap
> >Date: Tue, 13 Mar 2001 06:33:03 -0500
> >
> >Hi All - I just upgraded my 2501 bootstrap to ver 11.0(10c).  This
> >bootstrap
> >was sent to me by Cisco.  I successfully replaced them.  However, when I
> >reload the router, there's a message:
> >
> >%Sys-4-New-config:  IOS 12.0 or later may not be correctly understood
....
> >(or something like that).
> >
> >I wonder if this warning message is normal or there's something wrong? I
am
> >running IOS 12.0(15) anyway.  Thanks All!
>
> Perfectly normal, but it sounds like you've downgraded you IOS to version
> 11.something.  Do a show ver, and check which version you are now running.
>
> Writing the config to memory will stop this message.
>
> Rob./
>
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