Theon,
you can use Network Traffic Quota and limit download/upload for 1 TB. Network traffic quota is applied per user/groups. Inside the XG create a Group, insert all the users and apply the network traffic quota. For devices that cannot authenticate (printer, AP, etc...) you can use clientless users.
Once the traffic quota is reached, no more traffic is allowed.
I finally got this setup but having issues with setting the groups.
Here is what i have inside my network.
Iphone's IOS 10 - Wifi only
Mac Book Pro OSX -Wifi only
Windows 7 - Wifi and wired
One printer ( No Internet access)
2 -Xbox One
1 - PS3
I would like to be able to identify each device with a user if possible, so that i can see who is using the most data each month. I also need to make sure that my devices do not get blocked at the max limit of 1tb. Also need to know how to set up a rule so that the xbox'x can connect to xbox live with an open connection but still adhere to the traffic limit.
I know firewalls but not this one. Any help with instructions or links to documentation that will help.
Thanks