How does the udp header view the client process?

To view the client process, it needs to know the following information:

1. Source Port Number: Identifies the source process.

2. Destination Port Number: Identifies the destination process.

3. Source IP address: Identifies the source host.

4. Destination IP address: Identifies the destination host.

When UDP receives a message from the upper application layer and adds a UDP header, it will be handed over to the IP layer intact. At the sender, different application layer processes can use UDP protocol to transmit data. At the receiver, the transport layer can correctly transmit these data to the destination application layer after deleting the UDP header.

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