Return-path: Received: from smtp3-g21.free.fr ([212.27.42.3]:37509 "EHLO smtp3-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750845Ab0EDFwL (ORCPT ); Tue, 4 May 2010 01:52:11 -0400 Message-ID: <4BDFB601.9050507@free.fr> Date: Tue, 04 May 2010 07:52:01 +0200 From: Benoit Papillault MIME-Version: 1.0 To: Joerg Pommnitz CC: Johannes Berg , linux-wireless@vger.kernel.org Subject: Re: [PATCH] mac80211: improve IBSS scanning References: <469051.90774.qm@web51402.mail.re2.yahoo.com> <1272893084.3614.37.camel@jlt3.sipsolutions.net> <1272895062.3614.39.camel@jlt3.sipsolutions.net> <1272895986.3614.40.camel@jlt3.sipsolutions.net> In-Reply-To: <1272895986.3614.40.camel@jlt3.sipsolutions.net> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Le 03/05/2010 16:13, Johannes Berg a écrit : > On Mon, 2010-05-03 at 14:08 +0000, Joerg Pommnitz wrote: >> Johannes Berg writes: >>> >>> Interesting. I guess we never rejected it although it's invalid >>> according to the standard. Yuck. I think I would like to make nl80211 >>> reject it, but maybe I'll forget about it and let you use it ;) >> >> Sorry, I don't know about mac80211. This was more a general point. >> I thought this woudn't work at all but a co-worker was adamant that >> it works fine with Madwifi. So I sat down and observed it with >> a monitoring interface and lo and behold: The beacons really contained >> the broadcast SSID. > > Oh ok. I didn't see anything in cfg80211 but will check and post a > patch :) > > johannes Sorry to reply late, but in IBSS, beacons are really critical for synchronization (including BSSID & TSF). As such, they cannot be removed. AFAIK, adhoc DEMO is just like adhoc, but without beacons. As such, there is no synchronization and every node use the BSSID 00:00:00:00:00:00, preventing from having several "networks" on the same frequency (since there is no SSID to distinguish them). What you said is that you are using the broadcast SSID instead? And a fixed BSSID? I would indeed appreciate the capture file :-) Regards, Benoit