💻
IP: 192.168.1.100
:80
HTTP
:443
HTTPS
:22
SSH
:3000
App
🖥️
IP: 203.0.113.50
:80
HTTP
:443
HTTPS
:22
SSH
:3306
MySQL
SRC: 192.168.1.100:3000
DST: 203.0.113.50:443
Current Step:
Click "Start" to see how IP addresses and ports work together
Key Concept:
An IP address identifies a device on a network (like a street address). A port identifies a specific service/application on that device (like an apartment number). Together, they form a complete address: IP:Port