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The IEEE 802.11 standard also defines an optional access method using a point coordination function (PCF). PCF allows the access point acting as the network coordinator to manage channel access. The IEEE 802.11e amendment to the standard enhances the DCF and the PCF, through a new coordination function called Hybrid Coordination Function (HCF).
The syntax of the IIf function is as follows: IIf(expr, truepart, falsepart) All three parameters are required: e expr is the expression that is to be evaluated. truepart defines what the IIf function returns if the evaluation of expr returns true. falsepart defines what the IIf function returns if the evaluation of expr returns false.
A wireless intrusion detection system (WIDS) monitors the radio spectrum for the presence of unauthorized, rogue access points and the use of wireless attack tools. The system monitors the radio spectrum used by wireless LANs, and immediately alerts a systems administrator whenever a rogue access point is detected.
In such a system, the BSS created by the access point is distinct from the mesh network, and a wireless client of that BSS is not part of the MBSS. The formation of the mesh BSS, as well as wireless traffic management (including path selection and forwarding) is negotiated between the nodes of the mesh infrastructure. The mesh BSS is distinct ...
Point Coordination Function (PCF) is a media access control (MAC) technique used in IEEE 802.11 based WLANs, including Wi-Fi. It resides in a point coordinator also known as access point (AP), to coordinate the communication within the network.
Inter-Access Point Protocol or IEEE 802.11F is a recommendation that describes an optional extension to IEEE 802.11 that provides wireless access point communications among multivendor systems. [ 1 ] 802.11 is a set of IEEE standards that govern wireless networking transmission methods.
All nodes connecting to the access point must have the same service set identifier (SSID) as the access point. If wireless security is enabled on the access point (such as WEP or WPA), the NIC must have valid authentication parameters in order to connect to the access point. Ad hoc mode In an ad hoc mode network the WNIC does not require an ...
Sending the frame from the access point to a station is called a "sanctioned technique to inform a rogue station that they have been disconnected from the network". [ 1 ] An attacker can send a deauthentication frame at any time to a wireless access point, with a spoofed address for the victim.