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NetForge-AI

A browser-native network lab and networking course, beginner to advanced. Free account opens Module 1 + a 5-device lab; the Course & Lab Pass or All-Access Max opens the full course.

Product

  • Lab
  • 3D Live
  • Networking Course
  • Lessons
  • Guided Builds
  • Network Challenges
  • For Teachers
  • Community
  • Features

Course modules

  • 1 · Fundamentals
  • 2 · Addressing
  • 3 · Access (L2)
  • 4 · Connectivity
  • Final Weighted Exam

Resources

  • Command Reference
  • Free Networking Tools
·

Meet Classroom: teach networking on one live, shared lab

Hi everyone, the NetForge-AI team here.

Teaching networking, or interviewing someone for a network role? Meet Classroom.

Open the lab, press Classroom and start a class. You get a short join code: students sign in with a free account, enter it, and land on your canvas. Every device you drag in, every cable and every CLI command appears on their screens live, and you can pass the pen so a student builds while the room watches.

Add an assignment with checks such as "PC1 can reach SRV1", and the grader tests each submission against the live network. A class chat, private messages and file sharing keep questions next to the lab.

Tick Interview room for a one-to-one session, with the helper tools hidden by default.

A free account hosts up to 5 students; paid plans remove the cap. Start a class at netforge-ai.com/teachers

NetForge Classroom: open a class, share a code, present live, assign work that grades itself, watch progress, keep questions in the room The lab with a small demo network (PC, switch, router, server) and the Classroom button in the toolbar Hosting a class: a title, the current canvas as the students' starting point, and which tools students may use Interview room ticked: the subnet calculator, ARIA and 3D Live are off for the candidate by default An auto-graded assignment: PC1 can reach SRV1, and PC1 has its default gateway set, with every other check type listed below Joining a class: the student types the class code

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    Sharpen your skills

    Jump into a hands-on lab challenge

    • Two PCs through a switchThe most basic LAN: two hosts in the same subnet talking via an L2 switch. Perfect for learning ARP and MAC learning.
    • Two LANs joined by a routerInter-subnet routing 101: two switches behind a router. Set IPs, default gateways, and ping across subnets.
    • Three-router WAN with static routesA small WAN: three routers in a triangle with serial-style links. Practice writing static routes for full reachability.
    • Small Business — ISP edge + DHCP-served LANCloud (ISP) → Edge router → Switch → 3 PCs (DHCP clients) + File server. Edge router runs a DHCP pool; PCs auto-acquire IPs. PAT on the Edge takes the private LAN out to the internet through one public address.
    Open the lab →
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    NetForge-AI · Build, connect, and learn networking.

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    • NetForge-AI is an independent educational platform and is not affiliated with, endorsed by, or sponsored by any networking vendor or certification body. All product names, protocols, and standards referenced are the property of their respective owners and are used for descriptive, educational purposes only.

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