Defining Security Profiles 33WPA Encryption Select your preferred WPA encryption level, and ensure thatwireless stations have the same setting and key value.■ TKIP – Unicast (point-to-point) transmissions andmulticast (broadcast) transmissions are encrypted usingTKIP■ TKIP + 64 bit WEP – Unicast (point-to-point) transmissionsare encrypted using TKIP, and multicast (broadcast)transmissions are encrypted using 64 bit WEP■ TKIP + 128 bit WEP – Unicast (point-to-point)transmissions are encrypted using TKIP, and multicast(broadcast) transmissions are encrypted using 128 bitWEP■ AES - CCMP – Unicast (point-to-point) transmissions andmulticast (broadcast) transmissions are encrypted usingAES - CCMPGroup Key Update Refers to the key used for broadcast transmissions. If youwant the keys to be updated regularly, select the Group KeyUpdate check box. And then, in Key Lifetime, specify thetime interval (in minutes) after which the group key will bedynamically updated.Update Group Keywhen anymembershipterminatedIf enabled, the group key will be updated whenever anymember leaves the group or disassociates from the AccessPoint.Table 7 Options for WPA-PSKOption Description