How To Track Mobile Devices on Your Network
https://www.netfort.com/blog/video-tr...
In this video we look at how you can monitor mobile devices on your network using NetFort LANGuardian. LANGuardian is deep-packet inspection software that monitors network, device, and user activity. It uses network traffic as a data source and is typically connected to a SPAN or mirror port at the core of a network.
The video also has a section on how you can choose the best point on your network to monitor traffic associated with mobile devices. A traffic analysis approach does not require the installation of client or agent software on your wireless or mobile devices.