Long authentication times

[Umberto Ferraro Petrillo]

Good morning to all, I am coordinating a project for installing a
wireless network at the Faculty of Statistics of University of Rome.
We have been using freeradius with PEAP and EAP-TTLS enabled. All
seems to work fine except for the very long authentication times
(about one minutes) we are experiencing when using the default Windows
XP supplicant.

After doing some searches on the previous discussions, I found the
following thread where it is said that such a problem may be due to
the way the Windows supplicant handles the EAP negotiation:

http://www.mail-archive.com/freeradius-users@lists.freeradius.org/msg30473.html

I performed some further searches and discovered that this delay may
be due to the four-way handshake protocol used by the client machine
to establish a new connection with the AP. Do someone knows if there
exists any tuning in the implementation of this protocol able to
reduce the waiting time?

Thanks in advance for any help!

-- 
Umberto Ferraro Petrillo
PhD
Dipartimento di Statistica,
Probabilita' e Statistiche Applicate
Universita' di Roma -- La Sapienza
P.le Aldo Moro, 5
00185 - Rome, Italy
phone: +39 06 499 10513
e-mail: Umberto.Ferraro at uniroma1.it