java - How to get the IP addresses of clients around me -

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I am developing a Java software and I want to ask other customers for a database. This is a little shared DB in which I want to merge into one. Now my quiz is: How can I identify the IP on other machines (on local network) using the same client software?

I have each client before hearing a thread on a specific UDP port and Client Can send a broadcast on the same port.


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