Hi all,<br><br>We are using wpa_supplicant in order to connect the nodes of a large wireless testbed to the wired infrastructure of our university.<br>The connection works well. However, we are having troubles with the IT department of the university because our nodes keep re-authenticating themselves, which seems to consume a large amount of resources of the infrastructure.<br>
We were using the Roboswitch driver for Broadcom chips, and for some reason we thought that it was likely to be the cause of the problem. However, we recently made some tests using Via chipsets ("wired" driver), and the problem is still there.<br>
<br>The logs between two successive authentications look like that :<br><br>[...]<br>EAPOL authentication completed successfully<br><br>EAPOL: authWhile --> 0<br><br>RX EAPOL from 00:1d:a2:76:3a:67<br>EAPOL: Received EAP-Packet frame<br>
EAPOL: SUPP_PAE entering state RESTART<br>[...]<br><br>The whole re-authentication process seems to be triggered by the "RX EAPOL" event. Does anybody knows whether this means that it's actually triggered by the infrastructure?<br>
What is the role of "authWhile"? Can it be the event that triggers the re-authentication?<br><br>Apparently, this behavior does not happen with "regular" PCs. We are using OpenWRT on embedded wireless boxes... might that make any difference?<br>
<br><br>Any help would be greatly appreciated !<br><br>Thanks,<br><br><br>--<br>Julien Herzen<br>Research Assistant<br>EPFL-IC-LCA<br>