Mobile IP

Mobile IP is like having a passport for your phone. When you travel to a new country, you need a passport to identify yourself and communicate with people in that country. Similarly, when your phone moves from one network to another (like from WiFi to cellular data), it needs a way to identify itself and maintain its connection.

Mobile IP allows your phone to keep the same IP address (an identification number for your device) even when it moves from network to network. Think of it as your phone's personal ID card that lets it communicate with other devices and networks no matter where it goes.

When your phone moves to a new network, it sends a message to a special server called a home agent. This server keeps track of your phone's IP address and location. The home agent then communicates with another server called a foreign agent, which handles the network you're currently using. The foreign agent lets your phone connect to its network and provides it with a temporary IP address.

Thanks to mobile IP, your phone can keep its original IP address even when it's using a different network. This allows you to keep all your apps and services (like email, social media, and messaging) running smoothly, no matter where you go.

In summary, mobile IP is like a passport for your phone that lets it keep its identity and stay connected even when it moves between different networks.