How to get a list of computers or devices on the network and their IP addresses and name, using iPhone SDK?

I am trying to develop an application where I list out all the peripherals (computers, mobile devices, printers, etc) connected to开发者_如何学Go a local network and their IP addresses. I am new to network programming. Can any one help me out on this?

Thanks.

The easiest way is to discover services attached to the network through Bonjour, in this case, apple provides various levels of abstraction to normal socketing.