💻
Client
192.168.1.10:49152
CLOSED
🖥️
Server
10.0.0.1:443
LISTEN
SYN
seq=
Window: 65535
1000 | SYN=1Window: 65535
SYN-ACK
seq=
SYN=1, ACK=1
5000 | ack=1001SYN=1, ACK=1
ACK
seq=
ACK=1
1001 | ack=5001ACK=1
Handshake Steps
1
SYN
Client initiates connection
2
SYN-ACK
Server acknowledges & responds
3
ACK
Client confirms connection
Sequence Numbers
| Field | Client | Server |
|---|---|---|
| ISN | -- | -- |
| SEQ | -- | -- |
| ACK | -- | -- |
| State | CLOSED | LISTEN |
Connection Log
[--:--:--]Waiting to start handshake...