Both TKIP and AESCCMP
based solutions incorporated use of IEEE 802.1X [6] and Extensible Authentication
Protocol [7] based end user authentication, significantly raising the level of secure
authentication provided in WLAN systems.
Wi-Fi Alliance has continued to promote deployment of secure WLAN systems,
including Wi-Fi Protected Set-up (WPS). Developing the security technology is not
sufficient; the technology must be used, and made easy to use and configure, especially in
non-managed (consumer) environments. WPS provides a means for consumers to simply
configure a security-enabled WLAN system, thus increasing the number of deployed
secure systems.
In addition to link layer solutions, security of end user data can be provided above the
MAC layer. Virtual Private Network (VPN) overlays can be costly however, requiring
additional equipment (VPN servers) and maintenance expenses. Most WLAN
infrastructure equipment, including Aruba WLAN Access Point (AP) and Mobility
Controller (MC) products is designed to work transparently with VPN solutions.
For some customers, the deployment of low-cost access points coupled with
application-level security solutions is desirable.
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