Wireless Fidelity
Wireless Fidelity
Wireless Fidelity
• IEEE 802.11b
• IEEE 802.11a
• IEEE 802.11g
• IEEE 802.11n
IEEE 802.11b
• Introduced in 2003
• Combine the feature of both standards
(a,b)
• 100-150 feet range
• 54 Mbps Speed
• 2.4 GHz radio frequencies
• Compatible with ‘b’
Elements of a WI-FI Network
• Access Point (AP) - The AP is a wireless LAN
transceiver or “base station” that can connect one or many
wireless devices simultaneously to the Internet.
• IEEE 802.11i
Authentication
• Authentication Server is used
• Username and password
• Risk:
• Data (username & password) send before