You da man Paul, Thanks for the difinitive answer!
We are actually going to ship out a replacement router and push the config
onto the new one. Then we will attempt to reload the IOS on the problem one
later. The only access we have right now to that router is OOB dial-in and
the last thing we want to do is to be reloading the IOS and our connection
drop.
Thanks again not only to Paul, but everyone else who helped out!
>>>Brian
>From: Paul Werner <[EMAIL PROTECTED]>
>Reply-To: Paul Werner <[EMAIL PROTECTED]>
>To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
>Subject: Re: Router in (boot) mode
>Date: Fri, 13 Oct 2000 15:56:12 -0400
>
> > I have done a show flash and noticed after the file is listed
>it shows [invalid checksum]
> >
> > This is a wierd one. The file is not too big for the flash,
>and this was working a few weeks ago. This is why I am coming
>to the assumption that the flash file may be corrupted. I have
>promted a reload and this same condition results. I am going
>to power cycle which I feel is not going to fix anything. I am
>wondering if a netboot from another source would fix this
>issue, but I'm still not sure of the exact problem? Anyone have
>any advice or knowledge they would like to impart on me?<
>
>This is more detail than previously mentioned, which leads to a
>different course of action. First, you have a corrupted image
>on your flash, which needs to be replaced(the image, that is).
>Generally, this can be accomplished by the following steps:
>
>1. Place a TFTP server with the valid image and necessary
>permissions and proper IP address directly connected to an
>Ethernet interface on this router.
>
>2. Ensure that you have a properly bound IP address on the
>same Ethernet interface from the same subnetwork.
>
>3. Ping the TFTP server from the router. If it doesn't work,
>check to make sure you did a "no shut" at interface
>configuraion mode for the router. Once the ping works, go to
>the next step.
>
>4. At priviledged mode on the router, execute the following
>command:
>
>copy tftp flash <CR>
>
>It will then prompt you for the following:
>
>Address or name of remote host []? Enter the TFTP server IP
>address
>
>Source filename []? This will be the valid IOS image name on
>your TFTP server, such as, "c2500-js-l_120-3.bin"
>
>Destination filename [c2500-js-l_120-3.bin]? Just press <CR>
>
>At this point, a copy operation should commence.
>
>The real issue is why your image got corrupted in the first
>place. That is one area you have not resolved. Assuming that
>somebody did not recently replace the software image, it may
>have been an isolated incident. OTOH, you will need to monitor
>this router to see if there is a repeat occurrence. If there
>is, you may have corrupted flash. Flash does have a finite
>life on write operations. It is electrically erasable
>programmable read only memory and is subject to a relatively
>short life. Flash can also be damaged by dropping/mishandling
>as well. If it happens again, you may need to replace the
>flash SIMMs or PC card flash.
>
>HTH,
>
>Paul Werner
>
>
>
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