During this connection, the client sent some data in successive segments and then the server replied with a an acknowledgement that confirms the reception of all the previous segments. Can you infer the acknowledgement number of the segment returned by the server ?
# |
Length |
Summary |
Status |
0 |
28 bytes |
Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592493, Ack: 2477434132, Len: 8 |
|
1 |
27 bytes |
Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592501, Ack: 2477434132, Len: 7 |
|
2 |
29 bytes |
Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592508, Ack: 2477434132, Len: 9 |
|
3 |
29 bytes |
Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592517, Ack: 2477434132, Len: 9 |
|
4 |
20 bytes |
Transmission Control Protocol, Src Port: 1234, Dst Port: 53710, Seq: 2477434132, Ack: ????, Len: 0 |
|
0000
d1
ce
04
d2
c9
61
3a
ed
93
aa
a5
14
50
18
70
80
0010
00
00
00
00
73
64
71
73
64
73
71
0a
0000
Ñ
Î
.
Ò
É
a
:
í
.
ª
¥
.
P
.
p
.
0010
.
.
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- Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592493, Ack: 2477434132, Len: 8
- Source Port: 53710
- Destination Port: 1234
- Sequence number: 3378592493
- Acknowledgment number: 2477434132
- 0101 .... = Header Length: 20 bytes (5)
- Flags: 0x018 (PSH, ACK)
- 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 (8 bytes)
0000
d1
ce
04
d2
c9
61
3a
f5
93
aa
a5
14
50
18
70
80
0010
00
00
00
00
73
71
64
71
73
64
0a
0000
Ñ
Î
.
Ò
É
a
:
õ
.
ª
¥
.
P
.
p
.
0010
.
.
.
.
s
q
d
q
s
d
.
- Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592501, Ack: 2477434132, Len: 7
- Source Port: 53710
- Destination Port: 1234
- Sequence number: 3378592501
- Acknowledgment number: 2477434132
- 0101 .... = Header Length: 20 bytes (5)
- Flags: 0x018 (PSH, ACK)
- 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 (7 bytes)
0000
d1
ce
04
d2
c9
61
3a
fc
93
aa
a5
14
50
18
70
80
0010
00
00
00
00
73
71
64
71
73
64
73
71
0a
0000
Ñ
Î
.
Ò
É
a
:
ü
.
ª
¥
.
P
.
p
.
0010
.
.
.
.
s
q
d
q
s
d
s
q
.
- Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592508, Ack: 2477434132, Len: 9
- Source Port: 53710
- Destination Port: 1234
- Sequence number: 3378592508
- Acknowledgment number: 2477434132
- 0101 .... = Header Length: 20 bytes (5)
- Flags: 0x018 (PSH, ACK)
- 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 (9 bytes)
0000
d1
ce
04
d2
c9
61
3b
05
93
aa
a5
14
50
18
70
80
0010
00
00
00
00
73
71
64
73
71
64
73
71
0a
0000
Ñ
Î
.
Ò
É
a
;
.
.
ª
¥
.
P
.
p
.
0010
.
.
.
.
s
q
d
s
q
d
s
q
.
- Transmission Control Protocol, Src Port: 53710, Dst Port: 1234, Seq: 3378592517, Ack: 2477434132, Len: 9
- Source Port: 53710
- Destination Port: 1234
- Sequence number: 3378592517
- Acknowledgment number: 2477434132
- 0101 .... = Header Length: 20 bytes (5)
- Flags: 0x018 (PSH, ACK)
- 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 (9 bytes)
0000
04
d2
d1
ce
93
aa
a5
14
??
??
??
??
50
10
70
80
0010
00
00
00
00
0000
.
Ò
Ñ
Î
.
ª
¥
.
?
?
?
?
P
.
p
.
0010
.
.
.
.
- Transmission Control Protocol, Src Port: 1234, Dst Port: 53710, Seq: 2477434132, Ack: ????, Len: 0