A simple HTTP/2 GET

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Le mot de pase pour se connecter est

Question 1: An HTTP/2 trace

The attached packet trace was collected while retrieving a web object from the http://nghttp2.org website.

Download this packet trace and open it with wireshark to select which of the following affirmations are valid.

The initial HTTP window size announced by the client is 65535 bytes

The server uses nghttpx.

The client refuses the utilization of server push.

The trace contains a single GET request

The initial HTTP window size announced by the client is 1048576 bytes

The server uses nghttp2/1.30.0

The last frame sent by the client is the GOAWAY frame.

The URL of the requested web object is http://nghttp2.org/robots.txt

The client starts the connection by sending PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n

Question 2: A visualisation of this packet trace

#	Taille	Résumé
0	20 octets	`Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 0, Ack: 1, Len: 0`
1	20 octets	`Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 1, Ack: 1, Len: 0`
2	284 octets	`HyperText Transfer Protocol 2`
3	20 octets	`Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 1, Ack: 101, Len: 0`
4	74 octets	`HyperText Transfer Protocol 2`
5	20 octets	`Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 101, Ack: 43, Len: 0`
6	41 octets	`HyperText Transfer Protocol 2`
7	333 octets	`HyperText Transfer Protocol 2`
8	49 octets	`HyperText Transfer Protocol 2`
9	20 octets	`Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 127, Ack: 344, Len: 0`
10	20 octets	`Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 110, Len: 0`
11	20 octets	`Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 127, Len: 0`
12	20 octets	`Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 128, Len: 0`
13	20 octets	`Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 128, Ack: 345, Len: 0`

0000 0050b97031211a7c ec28502ea000fb04
0010 c0330000

0000 .P¹p1!.|ì(P...û.
0010 À3..

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 0, Ack: 1, Len: 0
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 0
- Sequence number: 0 (relative sequence number)
- Acknowledgment number: 1 (relative ack number)
- 1010 .... = Header Length: 40 bytes (10)
- Window size value: 64260
- Calculated window size: 64260
- Checksum: 0xc033 [unverified]
- Urgent pointer: 0

0000 b9700050ec28502e 31211a7d800000e1
0010 e75e0000

0000 ¹p.Pì(P.1!.}...á
0010 ç^..

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 1, Ack: 1, Len: 0
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 0
- Sequence number: 1 (relative sequence number)
- Acknowledgment number: 1 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 225
- Calculated window size: 225
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe75e [unverified]
- Urgent pointer: 0

0000  b9700050ec28502e  31211a7d800000e1
0010  e385000000000000  0000000000000000
0020  505249202a204854  54502f322e300d0a
0030  0d0a534d0d0a0d0a  0000120400000000
0040  0000030000006400  040000ffff000200
0050  0000000000280105  0000000182040000
0060  03474554b9ec9b86  4170617468000000
0070  0b2f532e74787490  7a68747470687474
0080  700000000a3a6175  74686f7269747900
0090  00000b6e67687474  70322e6f72676e67
00A0  68747470322e6f72  6700000006616363
00B0  657074000000032a  2f2a2a2f2a000000
00C0  0f6163636570742d  656e636f64696e67
00D0  0000000d677a6970  2c206465666c6174
00E0  65677a69702c2064  65666c6174650000
00F0  000a757365722d61  67656e740000000e
0100  6e6768747470322f  312e33302e306e67
0110  68747470322f312e  33302e30

0000  ¹p.Pì(P.1!.}...á
0010  ã...............
0020  PRI * HTTP/2.0..
0030  ..SM............
0040  ......d....ÿÿ...
0050  .....(..........
0060  .GET¹ì..Apath...
0070  ./S.txt.zhttphtt
0080  p....:authority.
0090  ...nghttp2.orgng
00A0  http2.org....acc
00B0  ept....*/**/*...
00C0  .accept-encoding
00D0  ....gzip, deflat
00E0  egzip, deflate..
00F0  ..user-agent....
0100  nghttp2/1.30.0ng
0110  http2/1.30.0

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 1, Ack: 1, Len: 100
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 100
- Sequence number: 1 (relative sequence number)
- Acknowledgment number: 1 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 225
- Calculated window size: 225
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe385 [unverified]
- Urgent pointer: 0
- TCP payload (100 bytes)
- PDU Size: 24
- PDU Size: 27
- PDU Size: 49
HyperText Transfer Protocol 2
- Stream: Magic
  - Magic: PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n
- Stream: SETTINGS, Stream ID: 0, Length 18
  - Length: 18
  - Type: SETTINGS (4)
  - Flags: 0x00
    - .... ...0 = ACK: False
    - 0000 000. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Stream Identifier: 0
  - Settings - Max concurrent streams : 100
    - Settings Identifier: Max concurrent streams (3)
    - Max concurrent streams: 100
  - Settings - Initial Windows size : 65535
    - Settings Identifier: Initial Windows size (4)
    - Initial Windows Size: 65535
  - Settings - Enable PUSH : 0
    - Settings Identifier: Enable PUSH (2)
    - Enable PUSH: 0
- Stream: HEADERS, Stream ID: 1, Length 40, GET /robots.txt
  - Length: 40
  - Type: HEADERS (1)
  - Flags: 0x05
    - .... ...1 = End Stream: True
    - .... .1.. = End Headers: True
    - .... 0... = Padded: False
    - ..0. .... = Priority: False
    - 00.0 ..0. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0001 = Stream Identifier: 1
  - Header Block Fragment: 82048862c3c674a174f94f864188aa69d29ac4b9ec9b5303...
  - Header Length: 175
  - Header Count: 7
  - Header: :method: GET
    - Name Length: 7
    - Name: :method
    - Value Length: 3
    - Value: GET
    - :method: GET
    - Representation: Indexed Header Field
    - Index: 2
  - Header: :path: /robots.txt
    - Name Length: 5
    - Name: :path
    - Value Length: 11
    - Value: /robots.txt
    - :path: /robots.txt
    - Representation: Literal Header Field without Indexing - Indexed Name
    - Index: 4
  - Header: :scheme: http
    - Name Length: 7
    - Name: :scheme
    - Value Length: 4
    - Value: http
    - :scheme: http
    - Representation: Indexed Header Field
    - Index: 6
  - Header: :authority: nghttp2.org
    - Name Length: 10
    - Name: :authority
    - Value Length: 11
    - Value: nghttp2.org
    - :authority: nghttp2.org
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 1
  - Header: accept: */*
    - Name Length: 6
    - Name: accept
    - Value Length: 3
    - Value: */*
    - accept: */*
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 19
  - Header: accept-encoding: gzip, deflate
    - Name Length: 15
    - Name: accept-encoding
    - Value Length: 13
    - Value: gzip, deflate
    - accept-encoding: gzip, deflate
    - Representation: Indexed Header Field
    - Index: 16
  - Header: user-agent: nghttp2/1.30.0
    - Name Length: 10
    - Name: user-agent
    - Value Length: 14
    - Value: nghttp2/1.30.0
    - user-agent: nghttp2/1.30.0
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 58

0000 0050b97031211a7d ec2850928000007e
0010 e66f0000

0000 .P¹p1!.}ì(P....~
0010 æo..

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 1, Ack: 101, Len: 0
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 0
- Sequence number: 1 (relative sequence number)
- Acknowledgment number: 101 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0xe66f [unverified]
- Urgent pointer: 0

0000  0050b97031211a7d  ec2850928000007e
0010  4517000000000000  0000000000000000
0020  0000180400000000  0000030000006400
0030  0400100000000800  0000010001000020
0040  0000000004010000  0000

0000  .P¹p1!.}ì(P....~
0010  E...............
0020  ..............d.
0030  ...............
0040  ..........

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 1, Ack: 101, Len: 42
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 42
- Sequence number: 1 (relative sequence number)
- Acknowledgment number: 101 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0x4517 [unverified]
- Urgent pointer: 0
- TCP payload (42 bytes)
- PDU Size: 33
- PDU Size: 9
HyperText Transfer Protocol 2
- Stream: SETTINGS, Stream ID: 0, Length 24
  - Length: 24
  - Type: SETTINGS (4)
  - Flags: 0x00
    - .... ...0 = ACK: False
    - 0000 000. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Stream Identifier: 0
  - Settings - Max concurrent streams : 100
    - Settings Identifier: Max concurrent streams (3)
    - Max concurrent streams: 100
  - Settings - Initial Windows size : 1048576
    - Settings Identifier: Initial Windows size (4)
    - Initial Windows Size: 1048576
  - Settings - Unknown (8) : 1
    - Settings Identifier: Unknown (8)
    - Unknown Settings: 1
  - Settings - Header table size : 8192
    - Settings Identifier: Header table size (1)
    - Header table size: 8192
- Stream: SETTINGS, Stream ID: 0, Length 0
  - Length: 0
  - Type: SETTINGS (4)
  - Flags: 0x01
    - .... ...1 = ACK: True
    - 0000 000. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Stream Identifier: 0

0000 b9700050ec285092 31211aa7800000e1
0010 e4f20000

0000 ¹p.Pì(P.1!.§...á
0010 äò..

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 101, Ack: 43, Len: 0
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 0
- Sequence number: 101 (relative sequence number)
- Acknowledgment number: 43 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 225
- Calculated window size: 225
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe4f2 [unverified]
- Urgent pointer: 0

0000  b9700050ec285092  31211aa7800000e1
0010  e3dd000000000000  0000000000000000
0020  0000000401000000  00

0000  ¹p.Pì(P.1!.§...á
0010  ãÝ..............
0020  .........

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 101, Ack: 43, Len: 9
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 9
- Sequence number: 101 (relative sequence number)
- Acknowledgment number: 43 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 225
- Calculated window size: 225
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe3dd [unverified]
- Urgent pointer: 0
- TCP payload (9 bytes)
- PDU Size: 9
HyperText Transfer Protocol 2
- Stream: SETTINGS, Stream ID: 0, Length 0
  - Length: 0
  - Type: SETTINGS (4)
  - Flags: 0x01
    - .... ...1 = ACK: True
    - 0000 000. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Stream Identifier: 0

0000  0050b97031211aa7  ec2850928000007e
0010  9a4d000000000000  0000000000000000
0020  0000dd0104000000  018861497ca58ae8
0030  19aa6c96d07abe94  0bea436c00000004
0040  64615f203237204f  6374206c947216c5
0050  ac4a7f8502e0005a  7f7686aa69d29afc
0060  ff7c870f79706500  00000a746578742f
0070  7052f2b4b60e920f  00000005406e6774
0080  6800000002363200  1d4d6f6e2c203139
0090  204175763a320000  0014787c65616465
00A0  722d727440766572  000000076e676874
00B0  7470780000000376  6961000000094074
00C0  2d73766300000016  68332d32333d223a
00D0  3434333322406e73  0000000a53414d45
00E0  4f524947494e0000  0010782d7873406c
00F0  6f636b0000001678  2d636f6e74656e74
0100  2d747970652d0000  3e00010000000155
0110  7365722d6167656e  743a202a0a446973
0120  616c6c6f773a200a  0a536974656d6170
0130  3a202f2f6e676874  7470322e6f72672f
0140  736974656d61702e  786d6c200a

0000  .P¹p1!.§ì(P....~
0010  .M..............
0020  ..Ý.......aI|¥.è
0030  .ªl.Ðz¾..êCl....
0040  da_ 27 Oct l.r.Å
0050  ¬J...à.Z.v.ªiÒ.ü
0060  ÿ|..ype....text/
0070  pRò´¶.......@ngt
0080  h....62..Mon, 19
0090   Auv:2....x|eade
00A0  r-rt@ver....nght
00B0  tpx....via....@t
00C0  -svc....h3-23=":
00D0  4433"@ns....SAME
00E0  ORIGIN....x-xs@l
00F0  ock....x-content
0100  -type-..>......U
0110  ser-agent: *.Dis
0120  allow: ..Sitemap
0130  : //nghttp2.org/
0140  sitemap.xml .

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 43, Ack: 101, Len: 301
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 301
- Sequence number: 43 (relative sequence number)
- Acknowledgment number: 101 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0x9a4d [unverified]
- Urgent pointer: 0
- TCP payload (301 bytes)
- PDU Size: 230
- PDU Size: 71
HyperText Transfer Protocol 2
- Stream: HEADERS, Stream ID: 1, Length 221, 200 OK
  - Length: 221
  - Type: HEADERS (1)
  - Flags: 0x04
    - .... ...0 = End Stream: False
    - .... .1.. = End Headers: True
    - .... 0... = Padded: False
    - ..0. .... = Priority: False
    - 00.0 ..0. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0001 = Stream Identifier: 1
  - Header Block Fragment: 886196dd6d5f4a09d535112a08017d40b971b66e09953168...
  - Header Length: 434
  - Header Count: 14
  - Header: :status: 200 OK
    - Name Length: 7
    - Name: :status
    - Value Length: 3
    - Value: 200
    - :status: 200
    - Representation: Indexed Header Field
    - Index: 8
  - Header: date: Sun, 27 Oct 2019 16:53:23 GMT
    - Name Length: 4
    - Name: date
    - Value Length: 29
    - Value: Sun, 27 Oct 2019 16:53:23 GMT
    - date: Sun, 27 Oct 2019 16:53:23 GMT
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 33
  - Header: content-type: text/plain
    - Name Length: 12
    - Name: content-type
    - Value Length: 10
    - Value: text/plain
    - content-type: text/plain
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 31
  - Header: last-modified: Mon, 19 Aug 2019 13:20:36 GMT
    - Name Length: 13
    - Name: last-modified
    - Value Length: 29
    - Value: Mon, 19 Aug 2019 13:20:36 GMT
    - last-modified: Mon, 19 Aug 2019 13:20:36 GMT
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 44
  - Header: etag: "5d5aa224-3e"
    - Name Length: 4
    - Name: etag
    - Value Length: 13
    - Value: "5d5aa224-3e"
    - etag: "5d5aa224-3e"
    - Representation: Literal Header Field without Indexing - Indexed Name
    - Index: 34
  - Header: accept-ranges: bytes
    - Name Length: 13
    - Name: accept-ranges
    - Value Length: 5
    - Value: bytes
    - accept-ranges: bytes
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 18
  - Header: content-length: 62
    - Name Length: 14
    - Name: content-length
    - Value Length: 2
    - Value: 62
    - content-length: 62
    - Representation: Literal Header Field without Indexing - Indexed Name
    - Index: 28
  - Header: x-backend-header-rtt: 0.00149
    - Name Length: 20
    - Name: x-backend-header-rtt
    - Value Length: 7
    - Value: 0.00149
    - Representation: Literal Header Field with Incremental Indexing - New Name
  - Header: server: nghttpx
    - Name Length: 6
    - Name: server
    - Value Length: 7
    - Value: nghttpx
    - server: nghttpx
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 54
  - Header: via: 2 nghttpx
    - Name Length: 3
    - Name: via
    - Value Length: 9
    - Value: 2 nghttpx
    - via: 2 nghttpx
    - Representation: Literal Header Field with Incremental Indexing - Indexed Name
    - Index: 60
  - Header: alt-svc: h3-23=":4433"; ma=3600
    - Name Length: 7
    - Name: alt-svc
    - Value Length: 22
    - Value: h3-23=":4433"; ma=3600
    - Representation: Literal Header Field with Incremental Indexing - New Name
  - Header: x-frame-options: SAMEORIGIN
    - Name Length: 15
    - Name: x-frame-options
    - Value Length: 10
    - Value: SAMEORIGIN
    - Representation: Literal Header Field with Incremental Indexing - New Name
  - Header: x-xss-protection: 1; mode=block
    - Name Length: 16
    - Name: x-xss-protection
    - Value Length: 13
    - Value: 1; mode=block
    - Representation: Literal Header Field with Incremental Indexing - New Name
  - Header: x-content-type-options: nosniff
    - Name Length: 22
    - Name: x-content-type-options
    - Value Length: 7
    - Value: nosniff
    - Representation: Literal Header Field with Incremental Indexing - New Name
- Stream: DATA, Stream ID: 1, Length 62
  - Length: 62
  - Type: DATA (0)
  - Flags: 0x01
    - .... ...1 = End Stream: True
    - .... 0... = Padded: False
    - 0000 .00. = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0001 = Stream Identifier: 1
  - Data: 557365722d6167656e743a202a0a446973616c6c6f773a20...

0000  b9700050ec28509b  31211bd4800000ea
0010  db8e000000000000  0000000000000000
0020  0000080700000000  0000000000000000
0030  00

0000  ¹p.Pì(P.1!.Ô...ê
0010  Û...............
0020  ................
0030  .

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 110, Ack: 344, Len: 17
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 17
- Sequence number: 110 (relative sequence number)
- Acknowledgment number: 344 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 234
- Calculated window size: 234
- Window size scaling factor: -1 (unknown)
- Checksum: 0xdb8e [unverified]
- Urgent pointer: 0
- TCP payload (17 bytes)
- PDU Size: 17
HyperText Transfer Protocol 2
- Stream: GOAWAY, Stream ID: 0, Length 8
  - Length: 8
  - Type: GOAWAY (7)
  - Flags: 0x00
    - 0000 0000 = Unused: 0x00
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Stream Identifier: 0
  - 0... .... .... .... .... .... .... .... = Reserved: 0x0
  - .000 0000 0000 0000 0000 0000 0000 0000 = Promised-Stream-ID: 0
  - Error: NO_ERROR (0)

0000 b9700050ec2850ac 31211bd4800000ea
0010 e39c0000

0000 ¹p.Pì(P¬1!.Ô...ê
0010 ã...

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 127, Ack: 344, Len: 0
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 0
- Sequence number: 127 (relative sequence number)
- Acknowledgment number: 344 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 234
- Calculated window size: 234
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe39c [unverified]
- Urgent pointer: 0

0000 0050b97031211bd4 ec28509b8000007e
0010 e3340000

0000 .P¹p1!.Ôì(P....~
0010 ã4..

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 110, Len: 0
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 0
- Sequence number: 344 (relative sequence number)
- Acknowledgment number: 110 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0xe334 [unverified]
- Urgent pointer: 0

0000 0050b97031211bd4 ec2850ac8000007e
0010 e31c0000

0000 .P¹p1!.Ôì(P¬...~
0010 ã...

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 127, Len: 0
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 0
- Sequence number: 344 (relative sequence number)
- Acknowledgment number: 127 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0xe31c [unverified]
- Urgent pointer: 0

0000 0050b97031211bd4 ec2850ad8000007e
0010 e31a0000

0000 .P¹p1!.Ôì(P....~
0010 ã...

Transmission Control Protocol, Src Port: 80, Dst Port: 47472, Seq: 344, Ack: 128, Len: 0
- Source Port: 80
- Destination Port: 47472
- TCP Segment Len: 0
- Sequence number: 344 (relative sequence number)
- Acknowledgment number: 128 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 126
- Calculated window size: 64512
- Window size scaling factor: 512
- Checksum: 0xe31a [unverified]
- Urgent pointer: 0

0000 b9700050ec2850ad 31211bd5800000ea
0010 e1c10000

0000 ¹p.Pì(P.1!.Õ...ê
0010 áÁ..

Transmission Control Protocol, Src Port: 47472, Dst Port: 80, Seq: 128, Ack: 345, Len: 0
- Source Port: 47472
- Destination Port: 80
- TCP Segment Len: 0
- Sequence number: 128 (relative sequence number)
- Acknowledgment number: 345 (relative ack number)
- 1000 .... = Header Length: 32 bytes (8)
- Window size value: 234
- Calculated window size: 234
- Window size scaling factor: -1 (unknown)
- Checksum: 0xe1c1 [unverified]
- Urgent pointer: 0

Auteur(s)	Olivier Bonaventure
Date limite	Pas de date limite
Limite de soumission	Pas de limite
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