There are many broadcast and unicast messages between a user and an access point that the user has no idea about! So what if some of them fail while you are streaming or having an internet-based call? A low-quality call? Lags and buffering? Slow uploads and downloads? Probably all of them! Why? Because for every [...]
Today’s exercice is simple: study the beacon frame and try to figure out what characteristics of the Wi-Fi network are advertised. In this article, we will be focusing on IEEE 802.11k support. PRESENTATION OF IEEE 802.11K IEEE 802.11k-2008 or "Radio Resource Measurement" (not to confused with the Radio Resource Management used by Cisco Wireless LAN Controllers) [...]
This post is directly related to the following previous article: "Wireshark: How to check it a Wi-Fi Network Supports 802.11v". In the previous article, we talked about how to check if a specific Wi-Fi network is supporting IEEE 802.11v, from the access point perspective. Like anything in Wi-Fi, we need support from both the access [...]
Today's exercice is simple: study the beacon frame and try to figure out what characteristics of the Wi-Fi network are advertised. In this first article, we will be talking about 802.11v. PRESENTATION OF IEEE 802.11V IEEE 802.11v or BSS Transition is an amendment which was published in 2011 and added to the IEEE 802.11-2012 standards. [...]
I often use Wireshark as my go to packet analyzer. I like it but I feel like I always forget what the display filters are. So I always find myself searching them online over and over again. So I have decided to create a reference sheet I could store and share on the blog. Feel [...]
Studying for the CWAP exam, I was using Wireshark and wondering how to see if the traffic (data frames) I was capturing was using HT (or 802.11n). So this article will show you how to find out! Let's start by talking about the Wi-Fi frames: - PPDU (PLCP Packet Data Unit) : This is the [...]
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