Subject: RE: [PATCH 1/1] cfg80211: wext: set bssid to NULL in SIOCIWESSID
From: Johannes Berg <johannes@sipsolutions.net>
To: "Zhao, Shanyu" <shanyu.zhao@intel.com>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
In-Reply-To: <380B2771CDD78E46856E6B788D9F199750233886@orsmsx503.amr.corp.intel.com>
References: <1264808376-8003-1-git-send-email-shanyu.zhao@intel.com>
	 <1264840626.3546.181.camel@johannes.local>
	 <380B2771CDD78E46856E6B788D9F199750233886@orsmsx503.amr.corp.intel.com>
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Date: Mon, 01 Feb 2010 20:27:40 +0100
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On Mon, 2010-02-01 at 10:57 -0800, Zhao, Shanyu wrote:
> Actually I don't think my patch disables that functionality. If
> there're multiple AP with the same essid "foo" and one of them has MAC
> "00:...:ff", then:
>=20
> iwconfig wlan0 essid "foo"
> This will make the station associate with the first AP with essid
> "foo".
>=20
> iwconfig wlan0 ap "00:...:ff"
> This will disassociate from the previous AP, and then associate with
> the first AP with MAC "00:...:ff".
>=20
> Am I missing anything here?

No, I missed something. The problem will only occur when the SSID is
hidden as well, because the connect code will not have the SSID and not
know what to scan for, or which SSID to choose (there are Cisco APs that
use the same BSSID for multiple hidden SSIDs).

johannes

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