From Serebra Learning Corporation
Layer 2 Security 
To recognize, troubleshoot, and mitigate layer 2 attacks The primary target includes network designers, network administrators, network engineers, and system engineers.
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IBM Implementing Wireless LANs Part 3 - Security 
This course examines the important area of access point (AP) security. You will learn how to implement
WEP and some of the limitations of this technology and about methods of increasing WEP security using technologies such as
Multiple keys disabling broadcasts and key hashing. You will also learn about
EAP and its improvements over WEP including
RADIUS authentication and session keys. You will
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