HACKING TECHNIQUES IN WIRELESS NETWORK
2. Wireless LAN Overview
In this section, we give a brief overview of wireless LAN (WLAN) while emphasizing the features that help an attacker. We assume that the reader is familiar with the TCP/IP suite (see, e.g., [Mateti
IEEE 802.11 refers to a family of specifications developed by the IEEE for over-the-air interface between a wireless client and an AP or between two wireless clients. To be called 802.11 devices, they must conform to the Medium Access Control (MAC) and Physical Layer specifications. The IEEE 802.11 standard covers the Physical (Layer 1) and Data Link (Layer 2) layers of the OSI Model. In this article, we are mainly concerned with the MAC layer and not the variations of the physical layer known as 802.11a/b/g.
A wireless network interface card (adapter) is a device, called a station, providing the network physical layer over a radio link to another station. An access point (AP) is a station that provides frame distribution service to stations associated with it. The AP itself is typically connected by wire to a LAN.
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