Now first, I do realize that I could have easily taken a IP scanner to find this info out. My personal favorite is Angry IP Scanner (not the Java based one). All I wanted to do was to find the IPs of my Sonos gear at my house. So I decided to do this the more interesting way. I did a ping of 192.168.0.255 at home. My packet capture that I was running, saw the responses from the devices on my network. Here below is what I found when I did the ping.
You can see the following IPs of my Sonos gear, as proved by the L2 info on the NIC:
Now, most of you wont find that useful. I, however, will, when it comes to information gathering.