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Packet diagrams (packetdiag) templates

TCP header — bit fields

Bit-precise TCP header. Compare with the bytefield-svg version for two takes on the same layout.

Template previewPacket diagrams (packetdiag)
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Make it your own.

packetdiag {
  colwidth = 32;

  0-15: Source Port
  16-31: Destination Port
  32-63: Sequence Number
  64-95: Acknowledgment Number
  96-99: Data Offset
  100-105: Reserved
  106-111: Flags
  112-127: Window
  128-143: Checksum
  144-159: Urgent Pointer
}