There are several ways to identify which Cisco IOS your Cisco device is running. First way being to examine the boot dispatch, this will display the image name that is loaded from flash which in return can be used to identify the IOS Version and Feature Set of the image. Provided below is an example of the required dispatch . - Verify the MD5 hash of the Cisco IOS software image on the Cisco IOS device using the procedures de.ed in the 'Image File Information Using IOS . Network administrators must identify their Cisco IOS software release this can be done by using information obtained from output provided by the show . - Answer: All of these IOS versions could be latest available for their respective platforms on Cisco.com. The point is that, between different Cisco platforms, you cannot determine chronology simply based on version number. Within a platform you still can 't reliably use IOS version to determine what is most .Jump to Digitally Signed Cisco Software Identification - Digitally signed Cisco IOS software is identified by a three-character extension in the image name. The Cisco software build process creates a Cisco IOS image file that contains a file extension based on the signing key that was used to sign images..