Return-Path: Message-ID: Date: Wed, 31 Jan 2007 10:30:15 -0500 From: "Raymond Ingles" To: "BlueZ users" In-Reply-To: <87tzy89q6p.fsf@nandini.home> MIME-Version: 1.0 References: <87tzy89q6p.fsf@nandini.home> Subject: Re: [Bluez-users] 'hcitool scan' failing Reply-To: BlueZ users List-Id: BlueZ users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: bluez-users-bounces@lists.sourceforge.net Errors-To: bluez-users-bounces@lists.sourceforge.net On 1/30/07, Mahesh T. Pai wrote: > > I am trying to set up bluetooth networking on two systems running > debian unstable. One is an i386 and other is running amd64. The > OS/software is otherwise identical for both systems. > Bus 001 Device 002: ID 1131:1001 Integrated System Solution Corp. KY-BT100 Bluetooth Adapter [...] > Out put of hciconfig -a is:- > > hci0: Type: USB > BD Address: 11:11:11:11:11:11 ACL MTU: 678:8 SCO MTU: 48:10 Here's the corresponding output on my system: Bus 001 Device 024: ID 1131:1001 Integrated System Solution Corp. KY-BT100 Bluetooth Adapter hci0: Type: USB BD Address: 11:11:11:11:11:11 ACL MTU: 678:8 SCO MTU: 64:10 Note my BD address is also "11:11:11:11:11:11". These cheap dongles appear to all have the same BD address. That will cause problems if two of them are in range of each other; it's similar to having to Ethernet cards on the same network with the same MAC address. This is a violation of the Bluetooth spec - those IDs are supposed to be unique. I suppose you get what you pay for. If the BD address is the same for both machines, I don't think it's going to be possible to get them to talk to each other. They should be able to talk to other devices with other, unique BD addresses, but they will get seriously confused trying to communicate with each other. Some Ethernet cards allow you to change their MAC address; anyone know of a way to change a dongle's BD address? ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users