P802.11aq Waiver Request Additional Information April 2018 doc.: IEEE 802.11-18/0697r0 April 2018 P802.11aq Waiver Request Additional Information Date: 2018-04-19 Authors: Stephen McCann, BlackBerry Stephen McCann, BlackBerry

April 2018 doc.: IEEE 802.11-18/0697r0 April 2018 Abstract These slides provide additional information to the “Waiver Request Introduction” found in document 11-18-0638r0 Stephen McCann, BlackBerry Stephen McCann, BlackBerry

April 2018 doc.: IEEE 802.11-18/0697r0 April 2018 P802.11aq Draft 14.0 - I 12.2.10 Requirements for support of MAC privacy enhancements MAC privacy enhancements are enabled on a non-AP STA when dot11MACPrivacyActivated is set to true. The STA shall periodically change its MAC address to a random value while not associated to a BSS. The STA shall construct the randomized MAC address from the locally administered address space as defined in IEEE Std 802-2014 and IEEE Std 802c-2017. However, the non-AP STA shall not change its MAC address during a transactional exchange, for example transmitting Public Action frames for preassociation discovery, or during the creation of state on an AP using preassociation capabilities, for example RSN pre-authentication, FT over-the-DS, etc. The smaller the period of MAC address change, down to a single transmitted frame per MAC address, the greater the privacy these enhancements afford. The actual period used when changing a MAC address is implementation dependent and outside the scope of this standard. At all times, IEEE 802.11aq constructs the randomized MAC address as defined in IEEE Std 802-2014 and IEEE Std 802c-2017 In pre-association, the frames terminate at the Access Point. Stephen McCann, BlackBerry Stephen McCann, BlackBerry

April 2018 doc.: IEEE 802.11-18/0697r0 April 2018 P802.11aq Draft 14.0 - II 12.2.10 Requirements for support of MAC privacy enhancements … If such a non-AP STA starts any transaction that establishes state bound to a MAC address and might elect to establish an association or establish transaction state with a discovered BSS, it shall check the value of dot11LocallyAdministeredMACConfig and shall configure its MAC address according to the rules of the local address space prior to the start of the transaction. State created with an AP using a prior MAC address, for instance RSN pre-authentication state or FT state established over-the-DS, is bound to the MAC address used when that state was created. Prior to establishing an association to the AP, the non-AP STA shall change its MAC address to the MAC address used when the state was created. In post-association the device is configured by the network administrator and the device follows the network policy Stephen McCann, BlackBerry Stephen McCann, BlackBerry

P802.11aq Draft 14.0 - III April 2018 C.3 MIB Detail doc.: IEEE 802.11-18/0697r0 April 2018 P802.11aq Draft 14.0 - III C.3 MIB Detail … dot11LocallyAdministeredMACConfig OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-write STATUS current DESCRIPTION "This is a control variable. It is written by an external management entity or the SME. Changes take effect as soon as practical in the implementation. This attribute identifies an addressing plan to use for when associating with the BSS. 0: local addresses comply with the Structured Local Address Plan (SLAP) as defined in IEEE Std 802c-2017 1: local addresses are constructed according to vendor-specific local address plan. DEFVAL {0} ::= { dot11StationConfigEntry 185 } The default value of the network policy is the SLAP, when local administered MAC addresses are configured for the network by the network administrator Stephen McCann, BlackBerry Stephen McCann, BlackBerry

IEEE 802c-2017 April 2018 8.4.1 Concept and overview doc.: IEEE 802.11-18/0697r0 April 2018 IEEE 802c-2017 8.4.1 Concept and overview … While a local administrator may assign addresses throughout the local range, the optional Structured Local Address Plan (SLAP) specifies different assignment approaches in four specified regions of local MAC address space. The SLAP is optional Stephen McCann, BlackBerry Stephen McCann, BlackBerry

11aq PRIVACY CONFIGURATION AND NETWORK SELECTION April 2018 11aq PRIVACY CONFIGURATION AND NETWORK SELECTION The following behavior takes place when the STA selects a network and begins to connect. Assumptions: An IEEE 802.11 device cannot associate to a BSS/AP that uses local address management unless the device is configured with local address information. A device cannot configure itself. A network administrator provides the configuration based on the BSS/AP local address policy. There are many existing deployed configuration mechanisms, including Wi-Fi Alliance Passpoint online signup, ActiveSync, Wi-Fi Simple Config, and 3GPP ANDSF. dot11PrivacyActivated TRUE FALSE Default dot11LocallyAdministeredMACConfig Select Network and use Globally unique MAC address. Default SLAP OTHER Select network and use configured MAC address. Configured MAC address is assigned by administrator according to SLAP Select network and use configured local MAC. Configured MAC is assigned by administrator according to local address policy Stephen McCann, BlackBerry