Hi Avinash,
Thank you for posting in Symantec community.
I would be glad to answer your query.
Symantec Endpoint Protection Manager uses several methods to locate unmanaged clients. It can still locate unmanaged clients if no Unmanaged Detectors are defined, but the results are more accurate if there is an Unmanaged Detector on each local network segment.
There are two ways to view unmanaged computers/devices discovered using the Unmanaged Detector feature.
Configure a notification:
- Open and login to the Symantec Endpoint Protection Manager
- Click on Monitors Tab
- Click on Notifications
- Click on Notification Conditions
- Click on Add
- Select Unmanaged computers
Check Unknown Device Failures in Security Status Details:
- Select the Home tab to view the Dashboard page of the Symantec Endpoint Protection Manager
- Click on More Details link on the Security Status alert and check for Unknown Device Failures. Any detections of unmanaged devices are listed, with IP and MAC address details.
Refer this article to find more info about unmanaged detector:
SEP 12.1 - What does it mean to set a client as an Unmanaged Detector?.
http://www.symantec.com/docs/TECH183746