Yes. There is a Configuration::Hotspot page to specify the redirect login page, RADIUS server and shared secret. See the 9.8 Indoor AP User Guide for reference (page 143).
But, as with any standalone AP or ZoneDirector, a HotSpot is an external RADIUS server/web page host. The AP simply points your users to this external server.
is ok. but there are an howto . i can istall radius server and configure it. i 've installed a web server, but i don't know how web server auth user on my ap!!??