Multicast Replay Detection Fred Stivers, Texas Instruments doc.: IEEE 802.11-04/0132 January 2004 January 2004 Multicast Replay Detection Fred Stivers, Texas Instruments January 14, 2004 Fred Stivers, Texas Instruments Fred Stivers, Texas Instruments

Draft 7.0 Clause 8.3.2.3.4 TKIP Replay Detection: doc.: IEEE 802.11-04/0132 January 2004 January 2004 Draft 7.0 Clause 8.3.2.3.4 TKIP Replay Detection: “Each TSC (48 bit counter) shall be selected from a single pool by each transmitter for each temporal key—i.e., each transmitter has its own unique TSC for each directional temporal key established.” “A receiver shall maintain a separate set of TKIP TSC replay counters for each MAC address from which it has received TKIP traffic.” Clause 8.3.3.4.3 PN and Replay Detection (i.e. CCMP): “The PN (a 48-bit counter) shall be selected from a single pool by each transmitter for each temporal key (TK).” “A receiver shall maintain a separate set of PN replay counters for each MAC address from which it receives CCMP traffic.” Based on this text, it is not clear that a receiver must support a separate replay counter(s) for multicast/broadcast traffic. Fred Stivers, Texas Instruments Fred Stivers, Texas Instruments

TGe TGe has added support for priority for multicast/broadcast. January 2004 TGe TGe has added support for priority for multicast/broadcast. Fred Stivers, Texas Instruments

Required Changes Update text in Clause 8.3.2.3.4 and 8.3.3.4.3. January 2004 Required Changes Update text in Clause 8.3.2.3.4 and 8.3.3.4.3. Add 2 bits to RSN Capability to indicate the number of multicast/broadcast replay counters a receiver supports. Update text in Clause 7.3.2.9.3. Update MIBs. Fred Stivers, Texas Instruments

January 2004 Motion Make changes to draft described in document 11-04-0131-03-000i-multicast-replay-detection.doc Fred Stivers, Texas Instruments