Interactive Simulations
Step through TCP handshakes, ARP requests and OSPF convergence — frame by frame, in your browser.
An interactive curriculum for engineers, students and the curious. Build mental models that stick — through simulations, not slides.
We stripped the noise out of network education. What's left is the part where you build, break and observe.
Step through TCP handshakes, ARP requests and OSPF convergence — frame by frame, in your browser.
XP, lesson state, and quiz results keep your path clear without turning study into a slot machine.
Drag routers and switches onto a canvas. Wire them up. Watch packets actually flow.
A real-feeling shell with ping, traceroute, dig and nmap — sandboxed and safe to experiment in.
A verifiable credential with a permanent URL when you finish. Shareable and ready for LinkedIn.
Every lesson, simulation and quiz available in English and Türkçe — toggle anywhere, anytime.
Start with the physical wire. End with the modern internet. Every level is open from the beginning.
Cables, frames, MAC addresses, switches and the bottom two layers.
IP addressing, subnetting, routing and the protocols that move packets.
TCP, UDP, congestion control and the contract beneath every connection.
DNS, HTTP, TLS, mail and the protocols you actually touch daily.
BGP, CDNs, QUIC, IPv6 and the architecture that holds it all together.
A certificate of completion — verifiable via a permanent public URL, designed to live on your LinkedIn or résumé without looking like a participation trophy.
for the successful completion of all five levels of the Packet.School networking curriculum — twenty-two lessons, ten simulations and the final practicum.
Packet.School is a public learning lab: lessons, simulations, sandbox tools, quizzes and certificates stay available to everyone.
The path is not split into teaser content and locked content. If it teaches the network, it belongs in the course.
You can use it alone, in a study group, in a classroom, or as onboarding material without asking for access.
The best version of this project is the one learners keep shaping: clearer lessons, better labs, fewer rough edges.
Twenty-two lessons. Ten simulations. Zero cost. You can be looking at your first TCP handshake in under three minutes.
Open Level 01