Week_6_Wireshark_(Packet_Sniffer).pdf

Week_6_Wireshark_(Packet_Sniffer).pdf - Student Name Huey...

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Student Name: Huey Vu Student Net Id: hdv130030 Assignment: Wk_6_Wireshark_(Packet_Sniffer) Due Date: 04/15/2018 1 Packet sniffer is a basic tool for observing network packet exchanges in a computer. As the name suggests, a packet sniffer captures (“sniffs”) packets being sent/received from/by your computer; it will also typically store and/or display the contents of the various protocol fields in these captured packets. A packet sniffer itself is passive. It observes messages being sent and received by applications and protocols running on your computer, but never sends packets itself. Figure 3 shows the structure of a packet sniffer. At the right of Figure 3 are the protocols (in this case, Internet protocols) and applications (such as a web browser or ftp client) that normally run on your computer. The packet sniffer, shown within the dashed rectangle in Figure 3 is an addition to the usual software in your computer, and consists of two parts. The packet capture library receives a copy of every link-layer frame that is sent
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  • Fall '15
  • Transmission Control Protocol, Huey Vu

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