Chapter 4. Wireless Security

Chapter 4 Contents

Security Overview pg 67

WEP Overview pg 67

WEP Weaknesses pg 68

IEEE 802.1X Authentication pg 68

Manage Port Access pg 69

Extensible Authentication Protocol (EAP) pg 70

EAP-TLS pg 71

Cisco Wireless EAP pg 72

PEAP pg 73

EAP-FAST pg 75

Comparison of 802.1X Authentication Methods pg 76

Wi-Fi Protected Access (WPA) pg 77

WPA pg 77

WPA2 pg 78

Encryption pg 79

Data Encryption Standard (DES) pg 79

Advanced Encryption Standard (AES) pg 79

Other Resources pg 79

Network security is extremely important. Security becomes even more complicated and critical when wireless devices are added to the network. Because data floats around in the ether, anyone can pick it up. This chapter addresses the issues of security in a wireless network and shows how to bolster your network's security mechanisms.