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I was looking for a way to tell what IP address my dhcp server assignes to a certain computer.

I have a small network, so it wouldn’t be hard to spot out the machine. But I didn’t know how to scan my LAN for hosts.

Google-ing a bit, I found the following command I could use from a Linux machine:

nmap -sP 192.168.0.1-255 (to specify a specific range)

or

nmap -sP 192.168.0.0/24 (to specify all addresses in that network)

Just replace the IP range with the one specific to your network. You should be able to see a list with the computers found.