I looked in this reference and got quite confused, maybe because I am not so familiar with the internet terminology.
All I need is to transmit packets of data to 2 to 3 recipients in parallel.
Within the local net, there are no other internet users: only one Arduino Due transmitting data and 2-3 recipients to receive this same data. There is no requirement for data flowing back from the recipients to the sender.
There must be some simple solution, besides MULTI-CASTING.
Thanks for any assistance.