![]() ![]() By default, NICs ignore non-addressed traffic. ![]() How does packet sniffing work?Ī network interface card (NIC) is a hardware component that contains a circuit board in every computer network. However, hackers may take advantage of this technology to break into a network, which leads to a packet sniffing attack. System administrators frequently use sniffing to troubleshoot or investigate the network. The next option is “filtered,” which means that analyzers will only collect packets containing particular data components. The first is “unfiltered,” which will capture all possible packets and save them to a local hard drive for subsequent inspection. These packets are designed for specific machines, but utilizing a packet sniffer in “promiscuous mode,” IT professionals, end-users, or malevolent intruders can inspect any packet, regardless of destination. Sniffers analyse data packet streams that pass between computers on a network as well as between networked systems and the Internet. It is also known as a packet analyzer, protocol analyzer, or network analyzer. Generally speaking, a packet sniffer refers to hardware or software that keeps track of network traffic by capturing packets. ![]() The sniffing devices or media used to perform this sniffing attack and collect network data packets are known as packet sniffers. The data packets are collected when they pass through a computer network. Sniffing attacks are data thefts perpetrated by capturing network traffic with packet sniffers, which can illegally access and read unencrypted data.
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