What exactly means iOS networking interface name? what's pdp_ip ? what's ap?

Question

I use following code to print all interface and it\'s mac address

- ( void )interfaceInfo{

int                 mib[6];
size_t              len;
char                 


        

Answer 1

ap1, en0, en1 are names of the interfaces on iOS as well as on Mac. If you type in Terminal on Mac ifconfig you would get the same, en0, en1, etc.

pdp_ip interfaces are those that are used for 3G and cellular data, while ap1 is used to represent currently active data connection, Wi-Fi, cellular data or bluetooth.