3B.2 LAB: Capture Network Data with tcpdump & Wireshark | CompTIA Network+

In this CompTIA Network+ (N10-008) lab, you’ll learn how to capture and analyze network traffic using both tcpdump and Wireshark — two essential tools for any network technician or security analyst.

🧪 Lab Objective 3B.2: Capture data using tcpdump, then analyze the packet capture file (.pcap) using Wireshark.

🔍 What You'll Learn:

How to capture raw packets using tcpdump on Linux

How to save packet data to a .pcap file

How to open and inspect the .pcap file in Wireshark

Applying filters, examining headers, and identifying protocols

🛠️ Tools Used:

tcpdump (CLI packet capture)

Wireshark (GUI packet analysis)

🧾 Sample Commands:
sudo tcpdump -i eth0 -w capture.pcap
wireshark capture.pcap

This lab supports Network+ Objective 3B: Explain Network Interfaces and helps you gain hands-on practice with real-world tools.
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Видео 3B.2 LAB: Capture Network Data with tcpdump & Wireshark | CompTIA Network+ канала CyberX Education