WiFi Pineapple Mark VII
  • WiFi Pineapple Mark VII
  • Setup
    • Connecting the WiFi Pineapple
    • Setting up your WiFi Pineapple
    • Connecting to the WiFi Pineapple on Linux
    • Connecting to the WiFi Pineapple on Windows
    • Setting up the WiFi Pineapple over WiFi
    • Setup by USB Disk
  • UI Overview
    • Introduction to the UI
    • Dashboard
    • Campaigns
    • PineAP
    • Recon
    • Handshakes
    • Modules
    • Settings
    • Cloud C²
  • Developer Documentation
    • Developer Resources
    • Contributing to the Module Repository
  • WiFi Basics
    • Introduction to WiFi
    • Radios and Chipsets
    • Stations and APs
    • Transmit Power
    • Antennas
    • Channels and Regions
    • Protocols
    • Modes of Operation
    • Logical Configurations
    • MAC Addresses
    • Broadcast and Multicast MAC Addresses
    • SSIDs
    • 802.11 Frame Types
    • 802.11 Frame Structure
    • Management Frames
    • Frame Injection
    • Association and State
  • FAQ / Troubleshooting
    • MacOS Support
    • Establishing an Internet Connection
      • Configuring a Client Mode Connection
      • ICS on Linux
      • Configuring ICS on Windows
      • Configuring a USB Ethernet Adapter
    • Password Reset
    • Factory Reset and Recovery
    • WiFi Pineapple Updates
    • WiFi Pineapple Beta Updates
    • Compatible 802.11ac Adapters
  • Extras
    • MK7 LED Mod Installation
    • MK7 Kismet Case Installation
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  1. WiFi Basics

802.11 Frame Structure

The meat and potatoes of WiFi. Essentially everything transmitted by a wireless NIC comes in the form of a frame. They are the basic unit of most digital transmissions, and surround or encapsulate packets.

Frame Structure

A typical WiFi frame is broken up into several sections, consisting of a MAC header, payload and frame check sequence

The MAC header contains a Frame Control Field which includes, among other things, the 802.11 protocol version and frame type. Address fields including the BSSID, source and destination are also part of this section.

The Payload or frame body contains the actual information (typically a data packet) of either a management or data frame.

The Frame Check Sequence (FCS) concludes the frame with a cyclic redundancy check (CRC) sum of the MAC header and payload. This is used to verify the integrity of the frame and is essential to fault tolerance.

Last updated 3 years ago

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