security – The Information Element

Three methods of determining if QoS is enabled on a WLAN via packet capture

Method 1: Presence of tagged parameter containing WMM in beacon Enter a display filter to only show frames for the desired SSID (NOTE: SSIDs are case sensitive) e.g. wlan.ssid == “VoiceReady” 2. Choose a frame that contains Beacon Frame in the “Info” column of the Packet List Pane. Alternatively, you can use Wireshark display filter wlan.fc.type_subtype == 8 3. Expand the IEEE 802.11 WirelessContinue reading “Three methods of determining if QoS is enabled on a WLAN via packet capture”

802.11 Multicast Delivery

I went through 8 years of my career in networking without having to know a thing about multicast. I was first exposed when onboarding network requirements for IPTV on hospitality networks. Currently I support wireless clients that use multicast to send audio to multiple recipients. Oftentimes I am asking customers to take packet captures forContinue reading “802.11 Multicast Delivery”