What is the proto_state value for the SYN_SENT TCP state?

The proto_state value for the SYN_SENT TCP state is represented by the hexadecimal value 02. In the TCP protocol, the SYN_SENT state indicates that a client has sent a synchronization (SYN) packet to initiate a connection and is now waiting for a corresponding SYN-ACK response from the server. This state is crucial as it signifies the beginning of the TCP three-way handshake process.

Understanding the various proto_state values is essential for interpreting network traffic and debugging TCP connection issues. Each state in the TCP connection lifecycle has a designated proto_state value, which helps network administrators and security professionals identify the current status of TCP connections effectively.

The other states are designated with different proto_state values, which are specifically assigned according to their role in the TCP connection lifecycle. Thus, recognizing that SYN_SENT corresponds to proto_state=02 aids in accurately analyzing network communications involving TCP connections.