When the FTP client is connected to the FTP server, the Transport Layer protocol TCP created a reliable session. TCP is routinely used during a session to control datagram delivery, verify datagram arrival, and manage window size. For each exchange of data between the FTP client and FTP server, a new TCP session is started as shown in this WireShark screenshot: 1.Identify Three-way handshake packets and write them here? 2.Identify and list the graceful termination of communication between FTP client and server? 3. what is the port number of FTP protocol? 4. Identify the source and distention IP addresses?
When the FTP client is connected to the FTP server, the Transport Layer protocol TCP created a reliable session. TCP is routinely used during a session to control datagram delivery, verify datagram arrival, and manage window size. For each exchange of data between the FTP client and FTP server, a new TCP session is started as shown in this WireShark screenshot: 1.Identify Three-way handshake packets and write them here? 2.Identify and list the graceful termination of communication between FTP client and server? 3. what is the port number of FTP protocol? 4. Identify the source and distention IP addresses?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
When the FTP client is connected to the FTP server, the Transport Layer protocol TCP created a reliable session. TCP is routinely used during a session to control datagram delivery, verify datagram arrival, and manage window size. For each exchange of data between the FTP client and FTP server, a new TCP session is started as shown in this WireShark screenshot:
1.Identify Three-way handshake packets and write them here?
2.Identify and list the graceful termination of communication between FTP client and server?
3. what is the port number of FTP protocol?
4. Identify the source and distention IP addresses?
![*WiFi [Wireshark 2.2.3 (v2.2.3-0-g57531cd))
Eile Edit View Go Capture Analyze Statistics Telephony Iools Internals Help
Q Q Q =
Expression. Clear Apply Save
Filter
Destination
66. 220. 9. 50
192.168.0. 6
66. 220. 9. 50
No.
Time
Source
192.168. 0. 6
Protocel
Length
66
66
Info
66
50977-21 [SYN] Seq=0 win=8192 Len=0 MSS=1460 WS=1 SACK PERM=1
21-50977 [SYN, ACK] Seq-0 Ack-1 win-8192 Len-0 MSS-1460 WS-256 SACK_PERM-1
50977-21 [ACK] seq-1 Ack-1 win-8192 Len-0
Response: 220 welcome to the most popular FTP hosting service! Save on hardware, software, hosting an
50977-21 [ACK] Seq-1 Ack-185 win-8008 Len-0
Request: USER
Response: 331 user name ok, need password.
50977-21 [ACK] Seq-18 Ack-219 win-7974 Len-0
Request: PASS
Response: 230 user
50977-21 [ACK] Seq-34 Ack-296 win-7897 Len-0
Request: QUIT
Response: 221 Bye
21-50977 [FIN, ACK] Seq=305 Ack-40 win-131328 Len=0
50977-21 [ACK] seq-40 Ack-306 win-7888 Len-0
50977-21 [FIN, ACK] seq-40 Ack-306 win=7888 Len-0
21-50977 [ACK] Seq-306 Ack-41 win-131328 Len-0
11
4.392104000
TCP
13
14
15
16
27
66. 220. 9. 50
192.168.0. 6
TCP
TCP
4.550383000
4.551425000
4.707715000
54
192.168.0.6
66. 220. 9. 50
66. 220. 9. 5O
66. 220. 9. 50
238
54
ETP
4.768504000
192.168.0.6
TCP
12.115825000
192.168.0. 6
71
FTP
28
12.273038000
66. 220. 9. 50
192.168.0.6
88
FTP
29
54
55
56
80
12. 326524000
17.595695000
17.780551000
17.823534000
66. 220. 9. 50
192.168.0. 6
192.168. 0. 6
66. 220. 9. 50
192.168.0.6
54
TCP
66. 220. 9. 50
70
FTP
logged on. Free service has restrictions and is slower.
192.168.0.6
131
54
FTP
66. 220. 9. 50
66. 220. 9. 50
TCP
24.722724000
192.168.0. 6
60
FTP
81
82
83
66. 220. 9. 50
66. 220. 9. 50
192.168. 0. 6
24. 880090000
192.168.0.6
192.168. 0.6
66. 220. 9. 50
66. 220. 9. 50
192.168.0.6
63
54
FTP
24.882612000
24.882732000
24. 883459000 192.168.0.6
25.063393000
TCP
54
TCP
84
54
84
54
TCP
85
66. 220. 9. 50
54
TCP
E Frame 81: 63 bytes on wire (504 bits), 63 bytes captured (504 bits) on interface 0
E Ethernet II, src: Bskybltd_d0:c2:44 (7c:4c:a5:d0:c2:44), Dst: Intelcor_80:58:c2 (60:6c:66:80:58:c2)
E Internet Protocol verston 4, src: 66. 220.9. 50, Dst: 192.168.0.6
a Transmission control Protocol, src Port: 21, Dst Port: 50977, seq: 296, Ack: 40, Len: 9
a File Transfer Protocol (FTP)
E 221 Bye\r\n
0000 50 6c 66 80
0010 00
0020 00 06 00
0030 02 01 af 61 00 00 32 32
58 C2 7c 4c
06. 40 00 77 06
Tf.x. L
as do c2 44 08 00 45 00
e4 04 42 de
c6 7f 1c a0 4c 91 e5 e3 50 18
31 20 42 79 65 od 0a
D..E.
1..0.w...B..2.
....!...L...P.
а. . 22 1 Вуе. .
32 có a
O Frame (frame), 63 bytes
Peckets: 89 Profile: Default](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F479c8cfa-5e02-4a93-a044-2aa8cc81b4fa%2F7c7a738d-b6b6-469a-b18f-e541d77cede9%2F8gdbgh9_processed.png&w=3840&q=75)
Transcribed Image Text:*WiFi [Wireshark 2.2.3 (v2.2.3-0-g57531cd))
Eile Edit View Go Capture Analyze Statistics Telephony Iools Internals Help
Q Q Q =
Expression. Clear Apply Save
Filter
Destination
66. 220. 9. 50
192.168.0. 6
66. 220. 9. 50
No.
Time
Source
192.168. 0. 6
Protocel
Length
66
66
Info
66
50977-21 [SYN] Seq=0 win=8192 Len=0 MSS=1460 WS=1 SACK PERM=1
21-50977 [SYN, ACK] Seq-0 Ack-1 win-8192 Len-0 MSS-1460 WS-256 SACK_PERM-1
50977-21 [ACK] seq-1 Ack-1 win-8192 Len-0
Response: 220 welcome to the most popular FTP hosting service! Save on hardware, software, hosting an
50977-21 [ACK] Seq-1 Ack-185 win-8008 Len-0
Request: USER
Response: 331 user name ok, need password.
50977-21 [ACK] Seq-18 Ack-219 win-7974 Len-0
Request: PASS
Response: 230 user
50977-21 [ACK] Seq-34 Ack-296 win-7897 Len-0
Request: QUIT
Response: 221 Bye
21-50977 [FIN, ACK] Seq=305 Ack-40 win-131328 Len=0
50977-21 [ACK] seq-40 Ack-306 win-7888 Len-0
50977-21 [FIN, ACK] seq-40 Ack-306 win=7888 Len-0
21-50977 [ACK] Seq-306 Ack-41 win-131328 Len-0
11
4.392104000
TCP
13
14
15
16
27
66. 220. 9. 50
192.168.0. 6
TCP
TCP
4.550383000
4.551425000
4.707715000
54
192.168.0.6
66. 220. 9. 50
66. 220. 9. 5O
66. 220. 9. 50
238
54
ETP
4.768504000
192.168.0.6
TCP
12.115825000
192.168.0. 6
71
FTP
28
12.273038000
66. 220. 9. 50
192.168.0.6
88
FTP
29
54
55
56
80
12. 326524000
17.595695000
17.780551000
17.823534000
66. 220. 9. 50
192.168.0. 6
192.168. 0. 6
66. 220. 9. 50
192.168.0.6
54
TCP
66. 220. 9. 50
70
FTP
logged on. Free service has restrictions and is slower.
192.168.0.6
131
54
FTP
66. 220. 9. 50
66. 220. 9. 50
TCP
24.722724000
192.168.0. 6
60
FTP
81
82
83
66. 220. 9. 50
66. 220. 9. 50
192.168. 0. 6
24. 880090000
192.168.0.6
192.168. 0.6
66. 220. 9. 50
66. 220. 9. 50
192.168.0.6
63
54
FTP
24.882612000
24.882732000
24. 883459000 192.168.0.6
25.063393000
TCP
54
TCP
84
54
84
54
TCP
85
66. 220. 9. 50
54
TCP
E Frame 81: 63 bytes on wire (504 bits), 63 bytes captured (504 bits) on interface 0
E Ethernet II, src: Bskybltd_d0:c2:44 (7c:4c:a5:d0:c2:44), Dst: Intelcor_80:58:c2 (60:6c:66:80:58:c2)
E Internet Protocol verston 4, src: 66. 220.9. 50, Dst: 192.168.0.6
a Transmission control Protocol, src Port: 21, Dst Port: 50977, seq: 296, Ack: 40, Len: 9
a File Transfer Protocol (FTP)
E 221 Bye\r\n
0000 50 6c 66 80
0010 00
0020 00 06 00
0030 02 01 af 61 00 00 32 32
58 C2 7c 4c
06. 40 00 77 06
Tf.x. L
as do c2 44 08 00 45 00
e4 04 42 de
c6 7f 1c a0 4c 91 e5 e3 50 18
31 20 42 79 65 od 0a
D..E.
1..0.w...B..2.
....!...L...P.
а. . 22 1 Вуе. .
32 có a
O Frame (frame), 63 bytes
Peckets: 89 Profile: Default
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