Network Ping is a software test tool for maintaining and debugging network problems on a local area network (LAN). Get an easy view for a full subnet on a single screen. Look at the screen to the left displaying the status for devices 192.168.2.0 - 192.168.2.255. Green and the device is working, yellow, there is a problem, and red, the device is not any longer on the LAN.
Requirements: Compatible with iPhone, iPad and iPod touch. Requires iPhone OS 4.3 or later. WiFi, Edge, or 3G network connection required.