Thanks for the notification.
MAybe, if it is possible I can also do some reverse search... What I mean is : if it is possible, I can download, maybe by API or directly quering the DB, the list of attached HOSTS and then I can make a script that mathes the MAC Addr. with a MAC table ( i made manually with nmap or some other tool ) and display all the informations I need on a new web-page... Is there a way to query the DB for the WIFI-SESSIONs or export them every xx minutes ?
Many thank again Federico and all.