load balancing 802.1x auth requests

Hi, We would like to load-balance 802.1X wireless authentications on multiple radius servers. The problem is that EAP methods require a series of requests and replies between the client and the same radius server, but a normal radius proxy will treat each request as a new one and forward them to different servers. With the latest release of FreeRADIUS, is it possible to keep states in the proxy server so that it can distinguish new requests from current outstanding requests? Any suggestions/insights would be much appreciated. Thanks, Alison Lee Telecommunications and Networking University of Texas