Do you know to what extent the network card is used in TCP/IP communication if the source and destination are the same server (itself). Does data make it to the physical NIC even though the communication isn't leaving the server?
Just wondering if the NIC driver and physical NIC are involved in the process. So if I have a server with a database on it, and the same server has the client piece on it, is the data making it to the NIC level even though this is internal only?
What I'm trying to determine is this: Would the advanced TCP/IP settings on the NIC come in to play or not in this scenario where communication never leaves the server itself?
No the traffic never makes it to the NIC driver. You can see this by doing a wireshark packet capture and selecting the NIC assigned to the address in question. You will see no traffic captured, because
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