I simply need a way to install a subnet IP scanner so I can see which devices are connected.
In searching around I have found a lot of old web pages that talk about changing repositories to get angry IP scanner, but I do not want to change my repositories for any reason. Plus, these pages all are for older versions.
There is an arp command but it is not exhaustive. arp -a does not show the entire subnet; just connections from a single machine.
I never did find a clone of Advanced IP scanner.
So the question is in the title: How can I install an IP scanner for Ubuntu 16.04 LTS?