How to detect what computers are using a public network?

Hello, I was just wondering how to detect what computers are on a public network. I do not intend to do anything malicious to their computer... It is a public network with no encryption... I can do a manual way but a program would be more helpful... Thanks in advance.How to detect what computers are using a public network?
You can use a program to scan the ip range of that network, and report back its results. I do this using a program that is freely available called Advanced IP Scanner v1.5.How to detect what computers are using a public network?
You can scan the computer on the public network using a program such as nmap.





Dane
lol crazy no encryption try this http://www.angryip.org/w/Home
i don't think you can unless you have access to the network's router(s)