Reordering the segments exchanged on a connection

TCP, as explained in the TCP chapter of Computer Networking: Principles, Protocols and Practice includes a sequence number in each segment that carries data.

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Reorder the segments

During this connection, the client sent some data that was acknowledged by the server. Can you reorder the segments based on their sequence numbers and acknowledgements ? The trace starts at the third ack of the three-way handshake sent by the client to the server.

#	Length	Summary
0	20 bytes	`Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678588, Ack: 3164923749, Len: 0`
1	20 bytes	`Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678590, Len: 0`
2	20 bytes	`Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678594, Len: 0`
3	20 bytes	`Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678596, Len: 0`
4	20 bytes	`Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678592, Len: 0`
5	22 bytes	`Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678592, Ack: 3164923749, Len: 2`
6	22 bytes	`Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678594, Ack: 3164923749, Len: 2`
7	22 bytes	`Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678588, Ack: 3164923749, Len: 2`
8	22 bytes	`Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678590, Ack: 3164923749, Len: 2`

0000 d1cc04d28626a13c bca4e76550107080
0010 00000000

0000 ÑÌ.Ò.&¡<¼¤çeP.p.
0010 ....

Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678588, Ack: 3164923749, Len: 0
- Source Port: 53708
- Destination Port: 1234
- Sequence number: 2250678588
- Acknowledgment number: 3164923749
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 0... = Push: Not set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0

0000 04d2d1ccbca4e765 8626a13e50107080
0010 00000000

0000 .ÒÑÌ¼¤çe.&¡>P.p.
0010 ....

Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678590, Len: 0
- Source Port: 1234
- Destination Port: 53708
- Sequence number: 3164923749
- Acknowledgment number: 2250678590
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 0... = Push: Not set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0

0000 04d2d1ccbca4e765 8626a14250107080
0010 00000000

0000 .ÒÑÌ¼¤çe.&¡BP.p.
0010 ....

Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678594, Len: 0
- Source Port: 1234
- Destination Port: 53708
- Sequence number: 3164923749
- Acknowledgment number: 2250678594
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 0... = Push: Not set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0

0000 04d2d1ccbca4e765 8626a14450107080
0010 00000000

0000 .ÒÑÌ¼¤çe.&¡DP.p.
0010 ....

Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678596, Len: 0
- Source Port: 1234
- Destination Port: 53708
- Sequence number: 3164923749
- Acknowledgment number: 2250678596
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 0... = Push: Not set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0

0000 04d2d1ccbca4e765 8626a14050107080
0010 00000000

0000 .ÒÑÌ¼¤çe.&¡@P.p.
0010 ....

Transmission Control Protocol, Src Port: 1234, Dst Port: 53708, Seq: 3164923749, Ack: 2250678592, Len: 0
- Source Port: 1234
- Destination Port: 53708
- Sequence number: 3164923749
- Acknowledgment number: 2250678592
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 0... = Push: Not set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0

0000 d1cc04d28626a140 bca4e76550187080
0010 00000000330a

0000 ÑÌ.Ò.&¡@¼¤çeP.p.
0010 ....3.

Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678592, Ack: 3164923749, Len: 2
- Source Port: 53708
- Destination Port: 1234
- Sequence number: 2250678592
- Acknowledgment number: 3164923749
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 1... = Push: Set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0
- TCP payload (2 bytes)

0000 d1cc04d28626a142 bca4e76550187080
0010 00000000340a

0000 ÑÌ.Ò.&¡B¼¤çeP.p.
0010 ....4.

Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678594, Ack: 3164923749, Len: 2
- Source Port: 53708
- Destination Port: 1234
- Sequence number: 2250678594
- Acknowledgment number: 3164923749
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 1... = Push: Set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0
- TCP payload (2 bytes)

0000 d1cc04d28626a13c bca4e76550187080
0010 00000000310a

0000 ÑÌ.Ò.&¡<¼¤çeP.p.
0010 ....1.

Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678588, Ack: 3164923749, Len: 2
- Source Port: 53708
- Destination Port: 1234
- Sequence number: 2250678588
- Acknowledgment number: 3164923749
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 1... = Push: Set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0
- TCP payload (2 bytes)

0000 d1cc04d28626a13e bca4e76550187080
0010 00000000320a

0000 ÑÌ.Ò.&¡>¼¤çeP.p.
0010 ....2.

Transmission Control Protocol, Src Port: 53708, Dst Port: 1234, Seq: 2250678590, Ack: 3164923749, Len: 2
- Source Port: 53708
- Destination Port: 1234
- Sequence number: 2250678590
- Acknowledgment number: 3164923749
- 0101 .... = Header Length: 20 bytes (5)
- Flags
  - 000. .... .... = Reserved: Not set
  - ...0 .... .... = Nonce: Not set
  - .... 0... .... = Congestion Window Reduced (CWR): Not set
  - .... .0.. .... = ECN-Echo: Not set
  - .... ..0. .... = Urgent: Not set
  - .... ...1 .... = Acknowledgment: Set
  - .... .... 1... = Push: Set
  - .... .... .0.. = Reset: Not set
  - .... .... ..0. = Syn: Not set
  - .... .... ...0 = Fin: Not set
- Window size value: 28800
- Urgent pointer: 0
- TCP payload (2 bytes)

Autor(es)	Olivier Bonaventure
Fecha de entrega	Sin fecha de envío
Tiempo límite de envío	Sin límite de envío
Etiquetas de categoría	tcp

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