Most BootFlash images do not recognize all Cisco IOS aaa commands. As a result, invoking a BootFlash image can lead to a password recovery situation unless the Cisco IOS fragments listed in this appendix are used to disable AAA. One example of a situation requiring the inclusion of this configuration is a software image upgrade for a Cisco AS5200 access server.
Include the following Cisco IOS commands to disable AAA authentication and authorization on the console and VTY ports of a NAS: