If I have a Bring Your Own Device policy, how can I track whose device belongs to each IP address? Do I need to collect information on all devices that use the WiFi system?
Deploy 802.1x on the WiFi controllers or WPA2-Enterprise with a RADIUS server. This will allow you to track IP assignments to usernames. You could also record MAC addresses of these devices and map them to usernames in a spreadsheet. Depends what decade you want to be in.