The 802.11 frame is depicted here as a row of information divided into segments. Numbers above each segment indicate field lengths in bytes. From left to right, the segments include: Frame control (2 bytes), Duration (2 bytes), Address 1 (6 bytes), Address 2 (6 bytes), Address 3 (6 bytes), Seq control (2 bytes), Address 4 (6 bytes), Payload (0-2312 bytes), CRC (4 bytes).

Below this, the frame control field is expanded and appears as its own row of information divided into segments, with numbers indicating field lengths in bits. From left to right, the segments include: Protocol version (2 bits), Type (2 bits), Subtype (4 bits), To AP (1 bit), From AP (1 bit), More frag (1 bit), Retry (1 bit), Power mgt (1 bit), More data (1 bit), WEP (1 bit), Rsvd (1 bit).