lec7 - CprE 530 Lecture 7 Topics Wireless Security Standard...

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Unformatted text preview: CprE 530 Lecture 7 Topics Wireless Security Standard Devices Devices Protocol Packet Format Vulnerabilities Mitigation Wireless Standards Name Frequency Data Rate Max Distance 802.11a 5 GHz 54Mbps 30 meters 802.11b 2.4 GHz 11Mbps 30 meters 802.11g 2.4 GHz 11-54 Mbps 30 meters 802.11n 2.4 GHz 200-500 Mbps 50 meters Signal Reflection Wireless Ethernet 802.11 Two topologies IBSS Independent Basic Service Set Ad-hoc, all stations are peers ESS Extended Service Set AP Access points connected to a network Station plus the AP form a BSS Wireless Network Environment A B C D E Router Switch Access point C SSID = SERVER ROOM Access point A SSID = LAB Access point B SSID = OFFICE Discovery and joining Access Point A Access point B Beacon SSID = LAB Device C Beacon SSID = OFFICE Probe Probe Response SSID = LAB Probe Response SSID = OFFICE Probe Discovery Joining Association Request Association Response IEEE 802.11 CSMA/CA Wait till medium is free...
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lec7 - CprE 530 Lecture 7 Topics Wireless Security Standard...

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