I am trying to understand the security of wireless networks and I am reading a book about that subject. The book said that IEEE 802.11i is an amendment to the IEEE 802.11 standard and that the 802.11i is more robust wireless LAN security protocol. The only problem I see is that people is still using the old protocol because some of the services provided by the new (802.11i) are
--authentication server: The authentication follows the RADIUS standard
--user data server: use Kerberos (central control)
--Individual keys are given out at access point.
-- Once authenticated, the access point send a key to wireless station.
Although the 802.11i standard is not new (2004 I think) I have never seen a wireless router in the market that provides the above features. Users always share a single password and I do not know how authentication and data server are used here.
Is that protcol implemented and if yes where is it?