Use Ping Range in a corporate environment to audit the devices connected to a DHCP server. Or at home to see if any intruders are connected to your WiFi. Ping Range is standalone, so it can be kept on a USB drive, and is less than 1MB in size. No installation required. It can ping a single device, either by IP-Address or hostname, and returns the MAC address. This version is the first release on CNET Download.com.