802.11 and 802.11x are defined as a family of wireless LAN technologies by IEEE. The following are the 802.11 specifications based on frequency and bandwidth:
- 802.11: This provides bandwidth up to 1-2 Mbps with a 2.4 GHz frequency band
- 802.11.a: This provides bandwidth up to 54 Mbps with a 5 GHz frequency band
- 802.11.b : This provides bandwidth up to 11 Mbps with a 2.4 GHz frequency band
- 802.11g: This provides bandwidth up to 54 Mbps with a 2.4 GHz frequency band
- 802.11n: This provides bandwidth up to 300 Mbps with both frequency bands
All components of 802.11 fall into either the Media Access Control (MAC) layer or the physical layer. The MAC layer is the subclass of the datalink layer. We have already covered the Protocol Data Unit (PDU) of the data link layer, which is called a frame, in Chapter 2, Scanning Pentesting.
First, however, let&apos...