Official course: OPNsense on GNS3 for LABs Emulation

This course is designed to help you create a fully functional OPNsense lab environment using GNS3—without purchasing any physical hardware. Many learners struggle with the initial setup phase: how to install the OPNsense image in GNS3, how to configure interfaces, how to access the GUI from the real PC, and how to connect the virtual router to the internet. In this course, you will learn these essential steps clearly and professionally, so you can start building real labs immediately.

We begin by preparing the OPNsense image files and importing them into GNS3. You will learn how to assign virtual network interfaces, configure LAN and WAN connectivity, and make sure OPNsense boots properly inside the GNS3 environment. Once the first router is running, we will connect it to your real computer so you can access the web interface directly from a browser, just like using a physical firewall. You will then learn how to configure GNS3 netw...