You are correct in that LMS does not provide an AUS. The Cisco Security Management Suite includes an AUS that runs on a machine different from LMS. The AUS functionality in LMS allows you to add an AUS server (external server) to LMS. This AUS server may be managing devices. In that case, you can add devices to LMS and indicate that these devices are to be managed via the AUS.
The only documentation on AUS and LMS can be found in the online context-sensitive help.
