How does Windows handle IPsec authentication and data integrity during network communication?

[ProfRon]

Windows grabs IPsec to lock down your network chats. It starts by eyeballing who you are. Think of it as flashing your ID at the door. Windows uses keys to match up senders and receivers. You send a packet, it gets a digital stamp. That stamp proves nobody swapped it out mid-flight. I remember tweaking this on my setup once. It felt like armoring a paper plane. For integrity, Windows hashes the data bits. Hashing turns your message into a unique fingerprint. If someone tweaks it, the print mismatches. Boom, Windows spots the foul play. You stay safe without even noticing. It layers this over your usual traffic. Sometimes it encrypts too, but that's extra. I like how it hums in the background. You just connect, and it handles the grit.

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