Port sniffing2/15/2024 ![]() A packet sniffer placed on a network in promiscuous mode can capture and analyze all of the network traffic. Often, any laptop can plug into a network and gain access to it. A packet sniffing program (also known as a Ip sniffer) can capture data packets only from within a given sub net, which suggests that it cannot sniff packets from another network. A MAC address may be a hardware address that uniquely identifies each node of a network,Īn attacker must manipulate the functionality of the switch so as to see all the traffic passing through it. the main difference between a hub and a switch is that a hub transmits line data to every port on the machine and has no line mapping, whereas a switch looks at the Media Access Control (MAC) address related to each frame passing through it and sends the data to the specified port. A switch is a complicated computer networking device. However, most networks today work on switches. Packet sniffing may be a process of monitoring and capturing all data packets passing through a given network sniffer by using a software application or a hardware device, Sniffing is simple in hub-based networks, because the traffic on a segment passes through all the hosts related to that segment. This section describes network sniffing and threats, how a sniffer works, active and passive sniffing, how an attacker hacks a network using sniffers, protocols susceptible to sniffing, sniffing within the data link layer of the OSI model, hardware protocol analyzers, SPAN ports, wiretapping, and lawful interception.
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