Alin Li Network Explorer

OPEN COMPUTING · How Two Computers Talk!
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Coach Byte says:

When Computer A wants an HTTP web page from Computer B, the message goes on a journey! It gets wrapped in 4 layers like a letter in envelopes 📨, travels as electrical signals ⚡ through a cable, and gets unwrapped at the other end. Let's watch every step!

🌐 Computer A Asks Computer B for a Web Page!

Application (HTTP) Transport (TCP) Internet (IP) Network (Ethernet) Sending → ← Receiving
Press Next Step to begin!
🖥️ Two Computers Connected
💻 Computer A IP: 192.168.1.10 MAC: AA:BB:CC:11:22:33 4. APP (Firefox) 3. TCP (Port 5000→80) 2. IP (→ 192.168.1.20) 1. ETH (→ DD:EE:FF) NIC 🔌 Ethernet ⚡ signals ⚡ NIC 🖥️ Computer B IP: 192.168.1.20 MAC: DD:EE:FF:44:55:66 4. APP (Web Server) 3. TCP (Port 80) 2. IP (192.168.1.20) 1. ETH (DD:EE:FF) Data flows through 4 layers! Press Next Step to begin the journey
🔍 Zoom View
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Press Next Step to watch the message get wrapped, sent, and delivered!

📨 Ready to Send!

Computer A wants to ask Computer B for a web page. Press Next Step to follow the message!
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Coach Byte says:

TCP/IP has 4 layers. When sending, data goes DOWN through each layer (getting wrapped). When receiving, it goes UP (getting unwrapped). Click each layer to learn more!

📚 The 4 TCP/IP Layers

⬇️ Sending = Down (wrap)  |  ⬆️ Receiving = Up (unwrap)

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Coach Byte says:

Let's test your networking knowledge! Try for 🥇 Gold!

🧠 Network Quiz!