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Rich Hintz

AirMagnet - Enterprise Wireless Network Security and Troubleshooting - 0 views

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    control over the entire lifecycle of the wireless LAN (WLAN) from network design and deployment to 24x7 intrusion prevention and troubleshooting. AirMagnet provides visibility into all aspects of your wireless airspace with the intelligence to automatically diagnose, explain and respond
Geoffrey Milos

802.11 Beacons Revealed - 0 views

  • Beacon interval. This represents the amount of time between beacon transmissions. Before a station enters power save mode, the station needs the beacon interval to know when to wake up to receive the beacon (and learn whether there are buffered frames at the access point).
  • Beacon interval. This represents the amount of time between beacon transmissions. Before a station enters power save mode, the station needs the beacon interval to know when to wake up to receive the beacon (and learn whether there are buffered frames at the access point).
  • An 802.11 probe response frame is very similar to a beacon frame, except that probe responses don't carry the TIM info and are only sent in response to a probe request. A station may send a probe request frame to trigger a probe response when the station needs to obtain information from another station. A radio NIC, for instance, will broadcast a probe request when using active scanning to determine which access points are within range for possible association. Some sniffing software (e.g., NetStumbler) tools send probe requests so that access points will respond with desired info
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  • n an idle network, beacons dominate all other traffic.
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