Hi,Jouni,
I have tested hostap 802.1x EAP-TLS, and it worked very well.
WINXP supplicant<====> hostap(linux box) <===> win2kserver (with IAS support)
However, I also tried 802.1x EAP-MD5. However, RADIUS server sended reject message. Have you tested EAP-MD5 ?
Thanks in advance
hualab