How to find lost devices
If you’ve every played with an embedded network device, such as a WTR54G or a slug, you may have lost your device on the network, and not known what IP address it had. I recently had the same happen to me at work, and I discovered the -b flag to the ping command, to allow your computer to broadcast a ping. All computers that receive the broadcast ping are supposed to reply to the ping, so you can easily find all devices on your subnet. Simply use a command along the lines of the following:
ping -b 192.168.1.255
And all devices on the 192.168.1.x subnet will receive the ping.