Return-Path: Message-ID: <40DB2EFB.6060000@nue.et-inf.uni-siegen.de> From: Michael Schmidt MIME-Version: 1.0 To: topsyturvy@nemo.student.utwente.nl CC: bluez-users@lists.sourceforge.net Subject: Re: [Bluez-users] BT_ADDR Address Resolution References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 24 Jun 2004 21:43:55 +0200 Hi Assed, If BlueZ hasn't introduced a mechanism of its own recently, there is no dedicated BueZ IP address assignment mechanism. Of course, you may use DHCP if a suitable server is available. The Bluetooth PAN specification ("Personal Area Networking Profile v1.0") recommends the "Zero Configuration Networking (Zeroconf)" standard (http://www.zeroconf.org/) with draft-ietf-zeroconf-ipv4-linklocal-02.txt (or actually one of its successors) as instant ("zero configuration") IP address assignment algorithm. The code for UNIX (called 'zcip') used to be available at http://zeroconf.sourceforge.net/?selected=zcip, but currently there seem to be intellectual property problems with it (see explanation on web page), so that the code has been removed. Actually it creates an IP address out of the 169.254/16 address range with a mathematical transform that is seeded by the network adapter's MAC address. It queries for potential collisions via AR, and defends an assigned IP address against subsequent collisions via ARP. Hope this helps, Michael > Does anyone know how IP addresses in the Bluez PAN get resolved to > BT_ADDRs that will be used by BNEP? Is there an ARP broadcast (i.e. query > like slave -> master -> broadcast to all slaves) or some sort of proxy ARP > mechanism at master (e.g. query from slave->master and then a reply > master->slave). > > > Thanks, > Assed -- ================================================= Michael Schmidt ------------------------------------------------- Institute for Data Communications Systems University of Siegen, Germany ------------------------------------------------- http: www.nue.et-inf.uni-siegen.de e-mail: schmidt@nue.et-inf.uni-siegen.de mobile: +49 179 7810214 ================================================= ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users