Verify Router IOS Version | Help | Cisco dCloud
For example, C800-UNIVERSALK9-M and Version 15.3(2) T in the output of the show version command above match the tested router IOS version for the Cisco 819 router model, c800-universalk9-m z.SPA. 153-2 T.bin. If the Cisco IOS version on your router: Is the same and has a version number that is the same or newer than the tested IOS version (15.3 ...