On Thu, Apr 3, 2008 at 12:52 PM, Jouni Malinen <j@xxxxx> wrote:> On Thu, Apr 03, 2008 at 04:01:53PM +0200, Johannes Berg wrote:>> > > > My log files are filling up with these messages:> > > > [ 8722.198929] wlan0: RX non-WEP frame, but expected encryption> > > > [ 8726.506345] __ratelimit: 14 messages suppressed>> Is the network using WEP or TKIP/CCMP?
WPA2 / AES
> > Ok, I got packets from Miles, and this is what I found:> >> > IEEE 802.11 Data, Flags: ......F.> > Type/Subtype: Data (0x20)> > Frame Control: 0x0208 (Normal)>> > Duration: 44> > Destination address: <his STA MAC>> > BSS Id: <his Netgear AP>> > Source address: <his Netgear AP>> > Fragment number: 0> > Sequence number: 3874> > Logical-Link Control> > DSAP: NULL LSAP (0x00)>> > Data (1472 bytes)> > 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................> > * all zeroes>>> > Note how the LLC header is also all-zeroes. Also note how the duration> > field is totally bogus. The sequence number is actually correct.>> 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..
The AP is set up to only use 802.11g.
> > Does anybody have an explanation for that except that the AP software is> > messing it up?>> Looks like an interesting AP behavior to me..>> > In any case, I suppose the message in question isn't actually necessary.> > I'll make it depend on verbose debugging maybe.>> 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..).
The link seems to work well. If you can nail down a problem withtheir AP software, I will submit a bug report to NetGear.
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