Uploaded October 2023 | Updated September 2026, 15 hours ago

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TCP And The Three-Way Handshake Explained Follow-Along Lab

TCP and the Three-Way Handshake 🚦

How does TCP ensure reliable communications? How does it recover if any data is lost or corrupted.

Master the fundamentals of TCP (Transmission Control Protocol) and the famous three-way handshake in this easy-to-follow lab tutorial! Whether you're studying for certifications like CCNA, CompTIA Network+, or just want to deepen your networking knowledge, this hands-on guide will make complex concepts simple and practical.

No prior experience? No problem! This tutorial is perfect for beginners and intermediate learners alike. Grab your favorite network analyzer and join us in exploring how TCP makes the internet reliable and efficient.

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💡 Pro Tip: Make sure to take notes and try the lab exercises on your own setup for better retention!

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Learn how in this lesson and then copy our lab using free software.

Download Wireshark for free - wireshark.org/download.html

Download the pcap file for three-way handshakes - wiki.wireshark.org/TCP_3_way_handshaking.md

💻 TCP
💻 TCP/IP
💻 Three-way handshake

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Timestamps:

00:00 - Introduction
01:11 - The three-way handshake
06:20 - Error detection
08:07 - Wireshark lab (follow along)

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Learn TCP/IP 💼

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#tcpexplained #threewayhandshake #networkingbasics