Is it possible in windows cmd line to check all of the network addresses (with ping or similar) to see which ones are taken/ have active devices:
ie. something that does
I know this is a late response, but a neat way of doing this is to ping the broadcast address which populates your local arp cache.
This can then be shown by running arp -a which will list all the addresses in you local arp table.
ping 192.168.1.255
arp -a
Hopefully this is a nice neat option that people can use.