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Bit Port Number Length N Tcp Header Structure

Front TCP: Header: Structure
Back - Source Port / Dest Port (je 16 bit)

- sequence number (32 bit)
- acknowledgement number (32 bit)

- header length (4 bit)
- reserved (6 bit)
- Flags (6 bit)
- receive window (16 bit)

- checksum (16 bit)
- urg data pointer (16 bit)

- options (variable length of N * 32 Bit, N € {0..10})

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