The Hackers Hideaway ARP attack tool has 4 major functions, 3 of which attempt to man-in-the-middle one or more computers on a network with a passive method or flood type method. It sets up forwarding and else-wise for you. The other function attacks a switch and tries to fill up its ARP table and turn it into a hub of sorts, allowing you to sniff all network traffic. While there are a few tools that do some of these things what really sets this one apart is the remote mac destination option that allows you to run the attacks from one machine and have another be the man-in-the-middle "server". This is written to run on Linux and needs Python and Scapy installed.