IOS Compatibility info

Does anyone know where to find info on IOS Compatibility? For example where to find what is the latest IOS that is compatable with a 2621xm or a 1721? I have searched the cisco website and cant find anything.

Thanks

John

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Comments

GT-Rob

A lot of it will depend on the memory you have. Im sure there is something on Cisco.com (feature navigator perhaps?), but I usually go to 3rd party resources via google first.

kalebksp

Try Shortcut Redirect - Cisco Systems (the short cut url is cisco.com/go/fn), should have all the information you need to pick an IOS.

MentholMoose

I think the Cisco Feature Navigator does what you want. You can find the IOS versions available for a platform, and determine the minimum supported RAM and flash. You may be able to use less RAM than what is listed, but YMMV.

tiersten

If you just want to know what versions and feature sets are available for a particular router then create a basic guest account and log in. You can look at what is available in the download area with that. You won't be able to download any router IOS files however.

johnwest43

Thanks guys, the feature navigator really helped!!