It allows you to ping one or more IP addresses, to scan a network for shared resources and to scan a computer for open ports. The software can notify you by e-mail if the IP address is or is not responding. It can play an wave file on notifying. You can ping only once or you can ping the IP address(es) at fixed time intervals. You can insert the starting and ending IP address and this software will ping all the addresses between and will tell you which IPs are responding.