Return-path: Received: from crystal.sipsolutions.net ([195.210.38.204]:49545 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756647AbYDCOB7 (ORCPT ); Thu, 3 Apr 2008 10:01:59 -0400 Subject: Re: mac80211 -- My log files are filling up with: "wlan0: RX non-WEP frame, but expected encryption" From: Johannes Berg To: Miles Lane Cc: Jiri Benc , linux-wireless , Jouni Malinen In-Reply-To: <1207226756.3636.66.camel@johannes.berg> (sfid-20080403_135257_509725_35FED48D) References: (sfid-20080403_013238_466005_CF563BE7) <1207226756.3636.66.camel@johannes.berg> (sfid-20080403_135257_509725_35FED48D) Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-RQXjw6wR2Qne1k5ac4qM" Date: Thu, 03 Apr 2008 16:01:53 +0200 Message-Id: <1207231313.3636.100.camel@johannes.berg> (sfid-20080403_150208_976496_CEC31E7F) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-RQXjw6wR2Qne1k5ac4qM Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 2008-04-03 at 14:45 +0200, Johannes Berg wrote: > Hi, >=20 > Please copy the mailing list, I've done that now. >=20 > > My log files are filling up with these messages: > >=20 > > [ 8722.198929] wlan0: RX non-WEP frame, but expected encryption > > [ 8726.506345] __ratelimit: 14 messages suppressed > > It seems that others who are using Netgear WPN824 access points are > > also seeing these messages in their logs. > > http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=3D1614 > > http://ubuntuforums.org/showthread.php?t=3D637084 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) Version: 0 Type: Data frame (2) Subtype: 0 Flags: 0x2 DS status: Frame from DS to a STA via AP(To DS: 0 From DS: 1) (= 0x02) .... .0.. =3D More Fragments: This is the last fragment .... 0... =3D Retry: Frame is not being retransmitted ...0 .... =3D PWR MGT: STA will stay up ..0. .... =3D More Data: No data buffered .0.. .... =3D Protected flag: Data is not protected 0... .... =3D Order flag: Not strictly ordered Duration: 44 Destination address: BSS Id: Source address: Fragment number: 0 Sequence number: 3874 Logical-Link Control DSAP: NULL LSAP (0x00) IG Bit: Individual SSAP: NULL LSAP (0x00) CR Bit: Command Control field: I, N(R)=3D0, N(S)=3D0 (0x0000) 0000 000. .... .... =3D N(R): 0 .... .... 0000 000. =3D N(S): 0 .... .... .... ...0 =3D Frame type: Information frame (0x0000) Data (1472 bytes) 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ * all zeroes 05b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Data: 000000000000000000000000000000000000000000000000... Note how the LLC header is also all-zeroes. =EF=BB=BFAlso note how the dura= tion field is totally bogus. The sequence number is actually correct. Does anybody have an explanation for that except that the AP software is messing it up? In any case, I suppose the message in question isn't actually necessary. I'll make it depend on verbose debugging maybe. johannes --=-RQXjw6wR2Qne1k5ac4qM Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIVAwUAR/TjUKVg1VMiehFYAQICCw//YNZGMZCN6IkHHs72OgbIpUKNVfDg4S4w Q03RJu0EWeYCzCxLMEPJjrRSpAXvFtM+Gkj9ISFBM9iKWazzaU8vaEpdMhPVJIva qUTT4bjo8Jgd4/tuTCMGYIUdzJZTVwNwQ4W5YOpiodmIdzwCdaK3anL1qdLp7B9P Uwc1XiIKvexS4rQwDmylkwYkpP1pIoveF0L9y21kta4WN2nQqiN9nYVP8ZP21OVj +Ow4ME8TTfqv6B+1UNT+a5m/53bkD7wXRhxpA1UZQxApfBvmyek/uuUn/k3mPDMm PTDX6MuOmxT3jdfbeX6kRnbEcShVfMJrJP0dIqwn7YzehQxnczW9Zb3nY/Dv7FDY ShZyX4rI2YMylA5xCuM+FZfwU33+Bj/fO/ROq8A8Dm1+7kcBeqzLMz5/BA2YMP74 1QaQPbzzfWstMpquuH7Qz4lUY8pC1eVoQ7ruVVB1++78An4K2rjrI/tsed46roY5 i9w0JdIckL0BbCE8Gl95G7ZqTAOLLPIpJodXtJq6wUkY13VIXoIdVFu39paBX4I6 s3yk+Jrs2BKDvkwQR0uYfhisCqb+vRcPUoRJuz8YHYEYU1oIJzUJlCtr9I/TprcS k+SJERPbAgc2Tpw5YUo7uq/JEmr3Kf8sF6vlNCg81V2rYFVA/6cgiRaGMSXMrw5z zQUl9EAqDSM= =kZUC -----END PGP SIGNATURE----- --=-RQXjw6wR2Qne1k5ac4qM--