Hi,
We also a school aswell:) Teachers want to access to the internet without restriction of DG. For now Ive given to their desktop machines dedicated IP but wheneever they use other computers such as computer lab or a-other student areas they filtered. We also have windows xp machişnes with AD and seems pretty similar system we have.
To check network traffic I using NTOP and I only can see IPs not users.
If you can help me that would be greatly appreciated.
Best regards