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Request for ruling on Anonymity mode

Request for ruling on Anonymity mode. Tom Siep, TMS consultants Tom.Siep@ieee.org Jennifer Bray, Cambridge Silicon Radio Jennifer.Bray@csr.com. LSB. MSB. Company Assigned. Company Identifier. LAP. UAP. NAP. B0. B1. B2. B5. B6. B7. Introduction.

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Request for ruling on Anonymity mode

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  1. Request for ruling on Anonymity mode Tom Siep, TMS consultants Tom.Siep@ieee.org Jennifer Bray, Cambridge Silicon Radio Jennifer.Bray@csr.com Tom Siep (TMS Consulting)

  2. LSB MSB Company Assigned Company Identifier LAP UAP NAP B0 B1 B2 B5 B6 B7 Introduction • 802.15.1 is derived from the Bluetooth specification • Both uses a 48 bit MAC address • The MAC address is divided into 3 parts • LAP (Lower Address Part) 24 bits • UAP (Upper Address Part) 8 bits • NAP (Non-significant address part) 16 bits Tom Siep (TMS Consulting)

  3. LSB MSB Company Assigned Company Identifier LAP UAP NAP B0 B1 B2 B5 B6 B7 Fields in MAC address • The UAP and NAP identify the company • Defines the company’s address range • The LAP is company assigned • Used to uniquely identify individual devices Tom Siep (TMS Consulting)

  4. Question to the RAC Question: Is it permissible for devices to use a pseudo-randomly allocated MAC address within an assigned company range? Answer: No. It is the specific intention that MAC addresses be uniquely assigned from a centrally managed database and marked as used. Duplicate use is not permitted. To be added to the IEEE RAC FAQ by Friday 21st November, 2003 Tom Siep (TMS Consulting)

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