January 14, 2014 at 09:26AM from WonderHowTo
Welcome back, my fledgling hackers!
A number of you have written me in recent weeks asking how to find IP addresses of a potential target. There are numerous ways to do this, but in this tutorial I will show you how to use a tool built into BackTrack that leverages Address Resolution Protocol or ARP to discover live hosts on the network.
As you know, ARP is used to map MAC addresses to IP addresses on an internal network. The router and switches send out broadcast ARP requests to all the MAC addresses on the network asking them to respond with their IP addresses. Each system will then… more