IEEE 802.11i/D9.0 diffs with IEEE 802.11i/D3.0 ?

Stephan Schlumbohm stephan.schlumbohm at
Tue Jan 10 12:16:51 EST 2006


IEEE 802.11i/D3.0 is WPA (WPA-Personal and WPA-Enterpise). It is announced
in the beacons as WPA IE.

IEEE 802.11i/D7.0 is WPA2 (WPA2-Personal and WPA2-Enterprise). It is
announced in the beacons as RSN IE. 

IEEE 802.11i/D3.0 aka WPA and IEEE 802.11i/D7.0 aka WPA2 are different and
not compatible. Both can use either TKIP or AES-CCMP.

It is recommended to use WPA2 over WPA because WPA2 aka RSN aka 802.11i/D7.0
uses a more robust protocol and has certain advantages over WPA (e.g.


-----Original Message-----
From: at
[ at] On Behalf
Of Jim Howard
Sent: Tuesday, January 10, 2006 7:46 AM
To: hostap at
Subject: IEEE 802.11i/D9.0 diffs with IEEE 802.11i/D3.0 ?

In testing various routers and adapter cards I have found that only a few
cards will work with the Netgear model WPN824 RangeMax router.  This router
is said to use MIMO technology with 7 smart antennas.  

This router has a 'WPA2 Personal' mode.  I find only a few adapter cards can
connect to this router when it is in this mode.  For those that do,
wpa_supplicant reports "RSN: using IEEE 802.11i/D9.0".  When this and other
routers are placed in what I thought was the normal WPA2 mode by specifying
WPA-PSK with AES only then wpa_supplicant reports "WPA: using IEEE

Does anyone know the difference between the D3.0 and D9.0 modes, and also
what if any differences there are in the AP beacons for these two modes?


Jim Howard

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