Hi, > Any idea? you've got something not liking the big fragments and chucking stuff around/away - got a UDP fragment throw-away firewall between the freeradius and IAS? got iptables on the Linux box configured up?
change the eap.conf to have a small fragment size and see what happens alan - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

