Server socket UDP c#

Question

Hello

Imagine 20 customers sent data every 1 second via UDP socket to a server. The server has to be UDP can not be TCP.

What would be the best way to develop this server in order to assure that the minimum possible data loss?

- All clients sending the same port?

- Each client sending on a different port?

- All clients sending the same port with multithread?

Could anyone give a hint of how he would implement this?

Thank you