WPA/WPA 2

In 2002, the Wi-Fi Alliance introduced the Wi-Fi Protected Access (WPA) certification. WPA certification only required support for TKIP/RC dynamic encryption key generation. In Jun 2004, the IEEE 802.11 Support for CCMP/AES encryption. The Wi-Fi Alliance therefore revised the previous WPA specification to WPA2, incorporating the CCMP/AES cipher. Therefore, the only practical difference between WPA and WPA2 has to do with the encryption cipher.

There is the one example for Privacy configuration from ExtremeWireless.