Dedicated WiFi Sniffers are only required in those IoT applications in which it is important to ensure wireless connectivity of the network or large bandwidth data is frequently communicated within the network, like in the case of video streaming or a highly active large-scale sensor network. A WiFi Sniffer captures all the frames communicated between a WiFi access point and a device acting as a WiFi station on the same channel but does not process frames or respond to the network. The latest WiFi version, i.e., WiFi 6E, uses an additional 6 GHz bandwidth.Ī dedicated WiFi Sniffer specifically deployed to monitor the wireless network shares the same channel that acts as a communication medium between an access point and station devices and keeps capturing wireless frames to monitor and log information about wireless traffic into a file. Currently, WiFi networks use only two bandwidths – 2.4 GHz and 5 GHz. A Sniffer only listens for WiFi network packets of a specific bandwidth within their range of listening capacity. In this article, we will examine precisely what a WiFi Sniffer is? Why is it required in a wireless network? How is WiFi sniffing used in embedded applications? How can WiFi sniffing be implemented in MicroPython ports?Ī WiFi Sniffer is a passive listening device that captures WiFi network frames of a particular WiFi channel in the air. One such functionality is the identification of available WiFi networks and the ability to connect with an available WiFi channel. However, some functionalities of a WiFi Sniffer are often needed to be built within IoT devices. In embedded applications, a dedicated WiFi Sniffer is rarely required to monitor a WiFi network. In network engineering, a WiFi Sniffer is a network analyzer designed to capture packet data on the wireless network.
WiFi-based IoT applications need to accomplish one thing, whether they require a large bandwidth or not: WiFi Sniffing. WiFi, despite having a limited range, offers incredible bandwidth such that even applications like live streaming can be easily hosted over a WiFi network. It is highly critical for controllers in IoT devices to identify and connect with available WiFi networks and effectively communicate data packets over a secure channel.
WiFi/WLAN is one of the most commonly utilized wireless solutions in home automation, smart farming, office automation, and Industrial IoT. MAC layer protocols like WiFi/WLAN, Zigbee, Bluetooth, and Ethernet are of prime importance in IoT applications.
0 kommentar(er)
