hostapd: RSN 4-way handshake issue with Cisco WET200 client

Helmut Schaa helmut.schaa
Tue Jan 17 05:16:28 PST 2012

On Tue, Jan 17, 2012 at 1:37 PM, Helmut Schaa
<helmut.schaa at> wrote:
> On Tue, Jan 17, 2012 at 1:11 PM, Felix Fietkau <nbd at> wrote:
>> On 2012-01-17 1:08 PM, Helmut Schaa wrote:
> [...]
>>> Btw. a similar workaround was part of OpenWrt for some time.
>>> Felix, do you remeber by any chance why you removed
>>> 570-eapol_key_type.patch in [1] again?
>> I removed it, because it apparently caused regressions with other
>> clients, and I couldn't figure out where those came from.
> Ok, too bad. Other AP implementations seem to allow the key descriptor
> change from RSN to WPA in frame 4of4. At least I can associate the
> Cisco client to other APs and the handshake still shows the key
> descriptor switch ...
> Let's see what Jouni's opinion is :)

The code was added back in 2009 [1] and since it causes issues
with some stupid clients we might reduce the check to also allow
WPA when a RSN handshake is carried out.



More information about the Hostap mailing list