IOS versions

rsty

I searched and could not find an answer to my question.

I have 2 routers with 96/32 memory (I think). One has 12.4 and one has 12.2. I plan to copy the 12.4 to overwrite the router with the IOS 12.2. Is the "c2600-adipservk9-mz.124-16.bin" a good candidate for the CCNA? Also, I found it weird that Cisco says for that image, you need 128/32, but my router only has 96/32... is that just a recommended memory or required or cisco mistype? I don't want to have any IOS version that may crash my router as my studies go on and my routers become more utilized than they are now. Or my memory calculations may have been wrong, her are some snippets from the "show version" command:

Lab Router 2

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c2600-adipservk9-mz.124-16.bin

Cisco 2620XM (MPC860P) processor (revision 2.0) with 94859K/3445K bytes of memory.
Processor board ID JAE08030RLC
M860 processor: part number 5, mask 2
1 FastEthernet interface
2 Serial interfaces
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)



Lab Router #1

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c2600-is-mz.122-23d.bin

cisco 2620XM (MPC860P) processor (revision 0x200) with 94208K/4096K bytes of memory.
Processor board ID JAE080412JJ (766084126)
M860 processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)

MickQ

First off, make a backup of both images.

Since both devices have the same memory, see how the 12.4 works on the first one.
You're hardly going to be pushing the router to handle a lot, so you might get away with it for test and lab purposes.

TFTP the 12.4 onto the other router and see how it works. If it fails, you have the backup and you've learned how to replace and reload images.