Subject: Re: mac80211 -- My log files are filling up with: "wlan0: RX
	non-WEP frame, but expected encryption"
From: Johannes Berg <johannes@sipsolutions.net>
To: Jouni Malinen <j@w1.fi>
Cc: Miles Lane <miles.lane@gmail.com>, Jiri Benc <jbenc@suse.cz>,
	linux-wireless <linux-wireless@vger.kernel.org>
In-Reply-To: <20080403165255.GI2025@jm.kir.nu>
References: <a44ae5cd0804021732s6ae5ed81ma5e229ae0faf4aaf@mail.gmail.com>
	 <1207226756.3636.66.camel@johannes.berg>
	 <1207231313.3636.100.camel@johannes.berg> <20080403165255.GI2025@jm.kir.nu>
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Date: Fri, 04 Apr 2008 16:51:11 +0200
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> >     Duration: 44

> What's wrong with the duration field value? The dump here does not
> indicate which transmit rate was used, so I don't know what TX rate the
> ACK would use, but 44 sounds like a reasonable duration value for
> 802.11g rates..

Yes, you're perfectly right, my rough estimate was totally off, I
miscalculated.

> > Does anybody have an explanation for that except that the AP software i=
s
> > messing it up?
>=20
> Looks like an interesting AP behavior to me..

For some values of interesting... :)

> > In any case, I suppose the message in question isn't actually necessary=
.
> > I'll make it depend on verbose debugging maybe.
>=20
> Yes, that sounds reasonable. The AP should not be sending this kind of
> crap, but well, what can you do if it does.. In theory, this could also
> be showing up in multi-SSID configuration when another SSID is
> configured to use unencrypted frames (though, that would cause interop
> issues in association for number of clients..).

That would be ... interesting. But yeah, the message doesn't have much
value, it just tells you your peer might be buggy...

johannes

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