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Main: TCP-connection-state-tcp-handshake


Connection Establishment

The client sends a SYN message which contains the server's port and the client's Initial Sequence Number (ISN) to the server (active open).

The server sends back its own SYN and ACK (which consists of the client's ISN + 1).

The Client sends an ACK (which consists of the server's ISN + 1).

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