The 802.11 Block Acknowledgement frame (BlockAck) is a powerful frame to predict the data flow in a WiFi network, both when the data frames are visible in a frame capture and not.

Let us use Wireshark and the I/O Graph to visualize it

Read More »

If you really want to dig into 802.11ax frame formats, a wireless capture (pcap) and Wireshark is a great way of doing it.
In this blog, I will dig into the preamble of an 802.11ax frame and point out several items to look at. I will also find information from the first part of the preamble, the legacy preamble

Read More »