What does it mean to set a client as an Unmanaged Detector?
http://www.symantec.com/business/support/index?page=content&id=TECH105722&actp=search&viewlocale=en_US&searchid=1297571787962
Unmanaged Detector in SEPM
https://www-secure.symantec.com/connect/videos/unmanaged-detector-sepm