Ack Policy

How, or whether, this frame should be acknowledged.

Reading a capture

Block Ack policy is what makes aggregation worthwhile — without it every subframe would need its own acknowledgement.

Where it sits

QoS Data MPDU > QoS Control > Ack Policy

• Open in the explorer — TCP over IPv4, in a protected QoS Data frame, aggregated
• Open in the explorer — Four-way handshake message 1
• Open in the explorer — Four-way handshake message 2
• Open in the explorer — Four-way handshake message 3
• Open in the explorer — Four-way handshake message 4
• Open in the explorer — ARP request in a QoS Data frame
• Open in the explorer — ICMP echo over IPv4, in a QoS Data frame
• Open in the explorer — UDP over IPv6, in a QoS Data frame
• Open in the explorer — TCP over IPv4, in a protected QoS Data frame
• Open in the explorer — TCP over IPv4, in an open QoS Data frame
• Open in the explorer — UDP over IPv4, in a QoS Data frame

Accuracy

Clause

802.11-2024 §9.2.4.5.4

Verified

Not verified against the standard. Treat this as a claim, not a fact.