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Wireshark Revealed: Essential Skills for IT Professionals by Charit Mishra, Yoram Orzach, James H Baxter

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Capturing methodologies

Network packets can be captured through various techniques. Depending on the requirement, a protocol analyzer is placed at a certain place in network with a particular type of configuration.

Hub-based networks

Hub-based networks are the easiest ones to sniff out because you've the freedom to place the sniffer at any place you want, as hubs broadcast each and every packet to the entire network they are a part of. So, we don't have to worry about the placement. However, hubs have one weakness that can drastically decrease network performance due to the collision of packets. Because hubs do not have any priority-based system for device that send packets, whoever wants to send them can just initiate the connection with the

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