"Carlo Prestopino" <c.prestopino@waitalia.com> wrote:

I'm trying to develop a prepaid solution for Wi-Fi users based on freeRADIUS+openLDAP. Hotspot gateway, working as NAS, is Mikrotik (www.mikrotik.com).Does anybody have links to already developed (and working) projects that uses the same architecture?

Chillispot.

Main problem is: how to let freeRADIUS know that user's usage limit expired?

See the hotspot documentation. Alan DeKok.