how to get the existing usernames from LAN in java

Question

Hi everyone,

I want to get all the usernames or IPaddresses from the LAN using java. Can anyone suggest me how to approach?

Thank you.

Answer 1

This is a slightly strange question. What is your purpose, what do you want to do with the information? A list of user names is quite different from a list of IP addresses, it's hard to understand why either is acceptable.

Also, consider that just because an IP address "exists" on a LAN, that doesn't say anything about the type of host that has the IP address. It might not have a "user" associated with it, for instance.

For a list of IPs, try finding the subnetwork mask, and pinging the broadcast address.