Chapter 1

802.11 Overview

In this chapter, you will learn about the following:

  • OSI model
  • Packets, frames, and bits
  • Data-Link layer
    • MSDU
    • MPDU
  • Physical layer
    • PSDU
    • PPDU
  • 802.11 architecture
  • 802.11 services
    • Station service
    • Distribution system service
  • 802.11 frames
    • Management frames
    • Control frames
    • Data frames
  • IEEE 802.11-2007 standard and amendments
    • 802.11b
    • 802.11a
    • 802.11g
    • 802.11n-2009
  • Wi-Fi Alliance

Before this book starts to get deep into the technical stuff, we want to take some time to discuss a little of the “what and why” of wireless LAN analysis. Since you are reading this book, it is likely that you have already read the CWNA and CWSP study guides. If you have not done so, do not worry. However, be prepared because after this ...

Get CWAP® Certified Wireless Analysis Professional: Official Study Guide now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial