Visual Network Simulation ToolIntroduction to GNS3

Learn network basics, build virtual topologies, connect to the real world

Start Learning

📊 View Slides

🧪 Lab Manual

🖥️

Graphical Interface

Drag and drop to build topologies, intuitively observe network behavior, no complex commands needed

🐧

Linux-Based

Use Linux as Switch/Router, skills learned can be directly applied in real environments

🔍

Packet Capture

Built-in Wireshark integration, observe ARP, ICMP and other packets in real-time

🌐

Connect to Real World

Can connect to physical networks for project development and demos

Course Outline

Time	Content	Type
00:00 - 00:15	GNS3 Basic Introduction	📊 Slide
00:15 - 00:35	GNS3 Installation	🔧 Hands-on
00:35 - 00:45	GNS3 Operations & Components	📊 Slide
00:45 - 01:15	Lab1: Single Subnet Experiment (L2 Forwarding, ARP, IP Configuration, Packet Capture)	🧪 Hands-on
01:15 - 01:45	Lab2: VLAN Experiment	🧪 Hands-on
01:45 - 02:00	☕ Break
02:00 - 02:30	Lab3: Router Connecting Multiple Subnets (L3 Forwarding)	🧪 Hands-on
02:30 - 02:35	Connecting to Real World & Applications	📊 Slide
02:35 - 03:00	Q&A, Free Exploration & Discussion	💬

Prerequisites

macOS

Install Rosetta (for Apple Silicon)

bash

softwareupdate --install-rosetta

Install Wireshark
Install UTM Virtual Machines for Mac

Windows

Install VM software like VirtualBox, VMware, or QEMU
Install Wireshark

Resources

Software Downloads

Virtualization Software

macOS: UTM Virtual Machines
Windows: VirtualBox

Appliances Resource

GNS3 Marketplace - Network appliances
Arista vEOS/cEOS

Visual Network Simulation ToolIntroduction to GNS3

Graphical Interface

Linux-Based

Packet Capture

Connect to Real World

Course Outline ​

Prerequisites ​

macOS ​

Windows ​

Resources ​

Software Downloads ​

Virtualization Software ​

Appliances Resource ​