Let me know if you want:

It looks like you want to similar to the pattern:

(Purely in a modern context)

c2600-ipbasek9-mz.124-25c.image c3620-advipservicesk9-mz.124-16.bin c7200-a3jk8s-mz.122-26c.image c2800nm-advsecurityk9-mz.124-24.bin

: Indicates the image runs from RAM ( m ) and is compressed ( z ). 122-26c : The software version (IOS Version 12.2(26)c). .image : The file extension used for these firmware files. Common Uses in Networking

Cisco's naming convention provides a wealth of information about the capabilities of the software: How to configure Dynamic NAT on Cisco IOS Router - Page 3