I’m always checking the number of devices on my network. I have a guest wireless that I have in the past let neighbors use. Since then I have cut them off, but left the network on to see who attaches. For a while I had my pineapple setup to do a rickroll on anyone who connected.
Nmap makes it easy to see what devices are on the network. My IP network is setup as 192.168.2.1. The easy way to scan the network for devices is to run this nmap command
nmap –sP 192.168.2.1/24
This will return a quick discovery of your network. The “-sP” option specifies that only a discovery will be performed.
It is basically showing the 13 devices on the network and each IP and MAC address.