thanks for your response !!
i Suppose to say wireless client Authentication from Controller.
as you can see above typical topology i have attached,
there is all seperate network for IPTV, employee Data, Voice, Wifi Guest & employee.
what i'm trying to do is i will configure 2 SSID.
Guest SSID is open because i want to authenticate from HSIA (Gateway) and for employee i want to authenticate from Controller.
i do not allow Guest to comunicate to employee network. for Guest only allow internet access nothing not any internal resource.
(1) Guest Authentication from HSIA
(2) The HSIA has to send billing information to PMS (property management System) PMS server is living in employee Network.
(3) employee authenticate from Controller ( because employee Gateway is different then Guest)
Regard
Tej Bahadur.