|
16-bit source port number |
16-bit destination port number |
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|
32-bit sequence number |
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|
32-bit acknowledgement number |
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| 4-bit header length | Reserved 6-bits | URG | ACK | PSH | RST | SYN | FIN |
16-bit window size |
|
16-bits TCP checksum |
16-bit urgent pointer |
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|
Options (if any) |
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|
DATA (if any)
|
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