Control Center
TRAFFIC GENERATION
Ping (ICMP)
Test connectivity
TCP Handshake
SYN -> SYN-ACK -> ACK
HTTP Request
Fetch website data
DIAGNOSTICS
DNS Lookup
Resolve hostname to IP
Traceroute (TTL)
Map network hops
ATTACK SIMULATION
Simulate DDoS Attack
Flood Firewall
Packet Sniffer / Logs
[CLEAR]
SYSTEM Interface initialized. Ready to capture.
Network Theory
Welcome to the NOC
The internet is built on packets. This visualizer lets you break down the invisible traffic.
Interaction:
Click on the Firewall or Router nodes in the 3D view to see their settings and change network behavior!
ICMP Echo (Ping)
Ping uses the ICMP protocol to test connectivity.
Try This: Click the Firewall node and enable "Block ICMP". Then try to Ping again. You will see the packet get dropped!
Firewall Blocked
Action Dropped!
The packet hit the firewall but matched a "DENY" rule.
Network admins often block ICMP (Ping) to hide servers, or block Ports (like 80/HTTP) to restrict web access.
TCP 3-Way Handshake
Before data is sent, a reliable connection must be established.
1. SYN: "Hello, let's chat."
2. SYN-ACK: "Received. I'm ready too."
3. ACK: "Great, connection established."
DNS Resolution
Computers don't speak names (itechvista.com), they speak numbers (203.0.113.45).
When you type a URL, your PC asks a DNS Server for the IP address.
DDoS & Firewalling
Distributed Denial of Service attempts to overwhelm the server.
Mitigation: A Firewall performs "Stateful Inspection". If it sees 100 SYN packets in 1 second from the same IP, it creates a temporary rule to DROP that traffic.