I want to get available network of the current device, so I firstly get networkinterfaces list:
Then, iterate every one:
NetworkInterface intf = en.nextElement(); String name = intf.getName();
Here is the problem. The names of returned value of ‘name’ are: rmnet_data1, dymmy0, wlan0, rmnet_usb0, intf, lo, p2p0, sit0. (on my device) I want to know what are the meanings of them.
Since Android is based on Linux, Linux network interface naming patterns apply to Android devices.
Here’s some resources on *nix network interface naming
- a tour of classic Linux network interface names
- new predictable interface names
- a good StackOverflow question
lo usually stands for the loopback interface (localhost)
wlan usually stands for a wireless networking interface
rmnet interfaces are usually associated with cellular connections and usb tethering
sit interfaces are associated with tunneling IPv6 over IPv4
p2p interfaces are usually associated with peer-to-peer connections (perhaps your Android device’s WiFi Direct support?)
dummy interfaces provide special aliases for the loopback interface