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Wireshark is the graphical network protocol analyzer tool.
The ppt covers all the basics which will help you to kick start with wireshark.

Published in: Technology
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  1. 1. WIRESHARK -Lakshya Dubey
  2. 2. Who Am I I am Lakshya A info-sec enthusiast @1_m3nd4x
  3. 3. Overview • What is Wireshark ? • Getting started • Basic terminologies • Wireshark gui • Demo
  4. 4. What is Wireshark ? • Wireshark is a graphical network protocol analyzer that lets us take a deep dive into the individual packets moving around the network. • Wireshark can be used to capture Ethernet, wireless, Bluetooth, and many other kinds of traffic. It can decode different protocols that it sees. • tools similar to wireshark – tcpdump – The essential free packet capture tool tshark – A lightweight answer to those who want the functionality of Wireshark, but the slim profile of tcpdump.
  5. 5. Getting Started For Linux • apt install wireshark • dpkg-reconfigure wireshark-common (Say YES to the message box) • Chmod +x /usr/bin/dumpcap • Ready to go. For windows • ( download exe ) • Then normal windows installation
  6. 6. Basic terminologies Segment :- the unit of data sent from TCP to another network layer. The component it contains are source port, destination port, flags, and checksum. Packet :- A packet is a container or box that carries data over a TCP/IP network. The component it contains are source ip, destination ip, length. Frame :-It is the combination of layer 2 header and the data being carried. The component it contains are source mac address, destination mac address, data, length, checksum.
  7. 7. Frame Packet
  8. 8. Segment
  9. 9. Wireshark Gui
  10. 10. Wireshark Expert info
  11. 11. Flow Graph The flow graph feature can provide a quick and easy to use way of checking connections between a client and a server. It can show where there might be issues with a TCP connection, such as timeouts, re-transmitted frames, or dropped connections.
  12. 12. Display filters allow you to concentrate on the packets you are interested in while hiding the currently uninteresting ones. They allow you to select packets by: - Protocol - The presence of a field - The values of fields - A comparison between fields …​ and a lot more! Display Filters
  13. 13. DEMO
  14. 14. Q & A