Network Traffic Analysis

Wireshark — Network Protocol Analyzer

Wiresharkis the world's most widely used network protocol analyzer. It captures and inspects network packets in real-time, allowing you to analyze protocols, troubleshoot issues, and understand network behavior at a granular level.

Module Sections

Command Line Basics

Launch Wireshark, capture traffic, and navigate the GUI efficiently.

Capture Filters

Reduce traffic volume by capturing only relevant packets using BPF syntax.

Display Filters

Filter captured traffic in real-time with powerful Wireshark display filter language.

Filter Builder

Interactive tool to construct complex display filters using protocol, field, operator, and value selectors.

Advanced Features

Follow streams, extract files, decode protocols, and use coloring rules.

Protocol Analysis

Deep dive into HTTP, DNS, TCP, SSL/TLS, and other protocol structures.

Troubleshooting

Diagnose network connectivity, latency, and application issues with Wireshark.

Wireshark Lab

Hands-on exercises analyzing PCAP files and answering scenario-based questions.

Wireshark Quiz

Test your knowledge with multiple-choice questions covering all Wireshark concepts.

Quick Start

New to Wireshark? Start with these three sections in order:

  1. 1
    Command Line Basics

    Learn to launch Wireshark and capture traffic.

  2. 2
    Capture Filters

    Reduce capture size by filtering at the source.

  3. 3
    Display Filters

    Filter and search captured packets effectively.

Info

Wireshark is a passive sniffer — it only observes traffic destined for or routed through the host it runs on. To capture traffic between other hosts, you need port mirroring or a network tap.
Next: Command Line Basics