Installation guide

Chapter 10
132 Sniffer Technologies
Control CTS Stations send CTS packets to acknowledge the receipt of an RTS
packet and to indicate that they are ready to receive data.
Control ACK Stations send acknowledge packets to indicate that they have
received an error-free packet.
Control CF End CF End packets are sent to indicate the end of a contention period.
Control CF End + CF
ACK
CF End/CF ACK packets are sent to acknowledge CF End packets.
Control Control
Reserved
802.11 control packets with a proprietary packet type indicated.
Data Data Only Data packets are sent to exchange data.
Data Data + CF-Ack Data packets with a CF-Ack included.
Data Data + CF-Poll Data packets with a CF-Poll included
Data Data + CF-Ack +
CF-Poll
Data packets with a CF-Ack/CF-Poll included.
Data Null function
(no data)
Empty data packets.
Data CF-Ack (no data) Empty data packets with a CF-Ack.
Data CF-Poll (no data) Empty data packets with a CF-Poll
Data CF-Ack +
CF-Poll (no data)
Empty data packets with a CF-Ack/CF-Poll.
Data Data Reserved Data packets with a proprietary extension indicated.
Table 10-9. 802.11 Packet Types Available for Filtering
Family Packet Type Description