Empty packet, socket not ready message

[A.L.M.Buxey at lboro.ac.uk]

Hi,

> We seem to be seeing fragmented UDP packets from roaming{0,1,2}.ja.net
> which match up with EAGAIN coming from the recevfrom syscall.

yep - EAP packets can be big - and therefore expect fragmentation - you 
need to be able to deal with such packets - at all parts of the transit -
not just RADIUS server but also firewall (several have drop fragmented UDP by default)

alan