Link to this heading802.11

GNU Radio Viewer

Link to this headingFrame 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