Request for ruling on Anonymity mode

1
Request for ruling on Anonymity mode

• Tom Siep, TMS consultants
• Tom.Siep_at_ieee.org
• Jennifer Bray, Cambridge Silicon Radio
• Jennifer.Bray_at_csr.com

2
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

3
Fields in MAC address

• The UAP and NAP identify the company
• Defines the companys address range
• The LAP is company assigned
• Used to uniquely identify individual devices

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