A program to monitor a couple of ranges of local IPs.

Use Report / Report to monitor a DHCP pool where you are primarily
	interested in seeing if MAC addresses stay the same.
  Machines must be in same subnet as DHCP Cop machine (see
  subnet mask in TCP/IP settings) to determine MAC addresses.Use Report / Company to examine manufactuers of MAC addresses.
	This will require a text lookup file, usually OUI.TXT available
	from http://standards.ieee.org/regauth/oui/index.shtml