network, net, scan, map
How do I scan all the computers on my LAN?
Change the IP-address to suit your LAN.
(Assuming you're using that range of IP-Addresses)
This will look at:
A cool trick of nmap... It can tell you the manufacturer of a device on your LAN
based on its MAC address. So if you want find the IP-address of your Cisco voip box? Scan the LAN with nmap.
If you run its as ROOT with -sn you can get the MAC access:
nmap -sn 192.168.1.0/24