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How TCP and UDP packets come to the world
(lemmy.one)
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this post was submitted on 21 Jul 2023
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No no, it's not "broadcasted". It still has a fixed sender and receiver IP address, but UDP doesn't verify whether the receiver got the data or not. You can implement that over UDP, but you have to do it yourself.
With TCP, the packet will retransmitted automatically if the receiver didn't tell the sender "yep, I got it".