Discuss briefly the IEEE 802.11i phases of operations that are illustrated in Figure below:

STA AP AS Station sends a request to join network Probe request AP sends possible security parameter (security capabilities set per the security policy) Probe response Open system authentication request Station sends a request to perform null authentication Open system authentication response AP performs null authentication Station sends a request toAssociation request associate with AP with security pa rameters Association res AP sends the associated security parameters ponse Station sets selected security parameters 802.1X-controlled port blocked 802.1X EAP request 802.1X EAP response Access request (EAP request) Extensible Authentication Protocol Exchange Accept/EAP-success key material 802.1X EAP success 802.1X-controlled port blocked Figure 7.8 IEEE 802.11i Phases of Operation: Capability Discovery. Authentication, and Association