Android Network literacy and android literacy

Android Network literacy and android literacy

1. APN: There are two methods for android mobile phones: wap and net.

To use wap to access the network, you must use the IP address of the wap Gateway (Port 10.0.0.172 is 80) to access external resources. There are many value-added services provided by carriers.

Use net to access network resources directly, which is fast.

2. The android mobile phone communicates with the server and should maintain a persistent connection. Otherwise, the server cannot locate the mobile phone. The mobile phone address is the Intranet address. The server only locates the gateway address (or the ip address provided by the carrier ).

3. wifi is a technology used to access the Internet through a LAN. The range is relatively small, and the base station APN is similar. It is a larger LAN, several kilometers in size. The ip address of the mobile phone is still the Intranet ip address.