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ihouse

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4500 router ios ver compatability

Good Day,

I'm setting up a lab environment and have been upgrading the memory in a number of 2514s so that they can run c2500-IS-L version 12.3(5a).

I also have an old 4500 router with a six port ethernet module laying around. Thinking it would be cool to have this router function as a dhcp server, I beefed up the memory to 16/16 and tried to boot from the ver 12.3 on a tftp server and also copied the file directly to flash.

The transfer was OK, but the boot failed. I got errors that include:

loadprog: bad file magic number 0x107

I copied the file to flash and got this:

device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

The failure does not surprise me, but I'd like a better undertsanding of what might be going on here.

Any brief explanation of direction to info would be appreciated.

Conversely, if this seems that it might be possible, I'll keep at it.

Thanks
Networking ProtocolsNetworking

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Les Moore
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Les Moore
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Sounds like the IOS image is corrupt.
Cisco Software Upgrade planner does not list any 12.3 versions available for 4500.
The latest available is 12.1.(26)  The IP only feature set requires 32Mb DRAM
What is the exact file name of the image that you are trying to use?
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ihouse

ASKER

The filename is C2500-is-l.123-5a.bin

I have copied this file to several 2514s with no problem.
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Les Moore
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That's the problem. You CANNOT interchange IOS images with router models. You must have the proper image for the 4500. The only one that will work with 16Mb DRAM is 11.3 or older and you need this image:
 c4500-i-mz.113-11f.bin
If you have 32Mb DRAM, then you can use up to 12.3
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ihouse

ASKER

c4500-i-mz.113-11f.bin is the original image.

Presently it's running off of igs-i-l.110-22.bin, which I pulled of a 2514.

Just to make sure I'm getting this straight:

1) To run a 12.3 ios I would need 32Mb DRAM

2) Irespective of the amount of DRAM, it won't function when loading a "c2500" file.

That makes sense, which is why i wasn't too surprised when it didn't work. But this raises the new question:

What's with this igs file?

Thanks
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Les Moore
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Networking
Networking

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

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