Captive Portal + FreeRADIUS + traffic limit - how to show remaining amount?

[jarlel]

Hi all,

We have a setup with Captive Porta, FreeRADIUS set up to limit the amount of traffic per month.
Is there a way to show the remaining amount of traffic to the logged in users?

I see that the information is showing in the system logs, but how can this be presented to the users in a webpage?

Thanks for any tips.