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802.11

802.11

GNU Radio Viewer

Frame Types

  • Management Frames (0x0)
    • Serve a number of purposes
      • Probe
      • Authentication
      • Association
      • Deauthentication
  • Control Frames (0x1)
    • Control frames are much like TCP for 802.11
      -Data Frames (0x2)
    • Actual data being transmitted between devices
    • Contain data payloads and may or may not be encrypted
  • Probe Requests (0x04)
    • Probe Requests are transmitted by wireless clients looking for networks to join
    • Directed probe requests are for specific networks in the client’s Preferred Network List (PNL)
  • Probe Response (0x05)
    • Consist of proposed connection configurations transmitted by the AP back to the Client
    • While the SSID field may be cloaked in Beacon Frames, it won’t be in Probe Responses
  • Beacon Frames (0x08)
    • Contain information and capability information for the AP