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TCP Explorer
Interactive visualization of Three-Way Handshake & Four-Way Wave
Handshake Simulator
State Machine
Packet Analyzer
Client
CLOSED
Active Closer
Server
LISTEN
Passive Opener
Click "Start" to begin the handshake...
Start Handshake
Reset
Auto Play
1x
2x
4x
8x
Packet Input
Source Port
Destination Port
Sequence Number (seq)
Acknowledgment Number (ack)
URG
ACK
PSH
RST
SYN
FIN
Analyze
Clear
Presets:
SYN
SYN+ACK
ACK
FIN
RST
Data (PSH+ACK)
Analysis Result
Enter packet details and click "Analyze"...