CWTS: Certified Wireless Technology Specialist Official Study Guide by Robert J. Bartz

CWTS: Certified Wireless Technology Specialist Official Study Guide by Robert J. Bartz

Author:Robert J. Bartz
Language: eng
Format: epub
Publisher: John Wiley & Sons
Published: 2012-08-27T16:00:00+00:00


Frames Used for Active Scanning

During the active scanning process, two frames are exchanged between the device and the access point.

1. The wireless LAN device sends a broadcast probe request frame to all devices, including access points within radio range.

2. The access point(s) send a probe response frame to the device so it can identify the parameters of the network before joining.

Figure 8.11 shows a packet analyzer capturing frames of the active scanning process.

Figure 8.11 Packet analyzer capture of probe request and probe response frames



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