In public space deployments, for example,
many operators??™ primary concern is with economically deploying wireless access networks.
Service providers offer Wi-Fi interoperable access to the greatest number of customers and
provide easy-to-use Web portal interfaces for customer registration. Security is provided at
the network level, via VPN access to corporate networks, and secure web server access.
Attacks targeting wireless driver software vulnerabilities (see Section 7.9) and a
proliferation of exploit tools have appeared, in a continuing effort to compromise the
integrity, availability and confidentiality of wireless LAN environments. As a response to
these attacks, many vendors have produced wireless LAN intrusion detection systems
1 Wi-Fi is a trademark of the Wi-Fi Alliance (WFA).
Wireless Local Area Network Security 147
(WIDS), also known as wireless LAN intrusion prevention and detection systems
(WIPDS). These systems can provide significant value to organizations, accommodating an
additional layer of security through detection and attack countermeasures techniques (see
Section 7.10).
7.3 MAC-Level Encryption Enhancements
IEEE 802.
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