숙제에 주어진 파일들 :
이 포스트는 07년 4월 4일 제출된 리포트 입니다. 이미 공개 했기 때문에 Copy를 해도 점수에 의미가 없습니다. 학업수행에 힘들어 하는 학우들을 위해서 올렸습니다. 틀릴수 있으니 덧글로 수정요청 하시면 확인후 수정하겠습니다.
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invalid-file1. 얼마나 많은 패킷이 필터에 잡혔는가?
- 10개의 패킷 총 612 Bytes
2. Client에서 보내진 패킷의 수는?
- 6개의 패킷 총 354 Bytes
3. Server에서 보내진 패킷 수는?
- 4개의 패킷 총 258 Bytes
4. TCP 연결을 세팅하는데 얼마나 많은 패킷이 쓰였는가?
- 3개의 Frames (1, 2, 3) : 총 186 Bytes (66 + 66 + 54)
5. 데이터 보내는데 얼마나 많은 패킷이 쓰였는가?
- 3개의 Frames (4, 5, 6) : 총 198 Bytes (72 + 72+ 54)
6. TCP연결을 끊을 때에는 얼마나 많은 패킷이 쓰였는가?
- 4개의 Frames (7, 8, 9, 10) : 총 228 Bytes (54 + 60 + 60 + 54)
7. Client의 Ethernet주소는 무엇인가?
- 00:0b:6a:b1:16:aa
8. Server의 Ethernet주소는 무엇인가?
- 00:00:f0:8a:c9:88
9. Client에서 Server로 보낸 데이터 패킷 중에 하나를 골라라 (4번 Frame 의 패킷 선택)
- 키보드로 입력시킨 message는 무엇인가?
2001_______, 이재욱
- 프레임에 있는 애플리케이션 데이터의 바이트 수는 몇인가?
ü 18 Bytes
- TCP헤더의 바이트 수는 몇인가?
ü 20 Bytes
- IP헤더의 바이트 수는 몇인가?
ü 20 Bytes
- Ethernet헤더의 바이트 수는 몇인가?
ü 14 Bytes
- Frame의 총 바이트 수는 몇인가?
ü 72 Bytes
10. 관련 그림을 캡쳐하여 제출
송수신한 것만 따로 걸러서 캡쳐 했습니다.
4번 Frame 에서 보내어진 패킷의 Data 부분만 따로 분석한 결과 보낸 내용인 2001_______, 이재욱 이 나왔습니다.
- 자세한 Frame 상의 패킷의 내용
Frame 1 (66 bytes on wire, 66 bytes captured)
Arrival Time: Apr 3, 2007 11:57:06.379258000
Time delta from previous packet: 0.000000000 seconds
Time since reference or first frame: 0.000000000 seconds
Frame Number: 1
Packet Length: 66 bytes
Capture Length: 66 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 52
Identification: 0xd21c (53788)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6ee5 (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 0, Ack: 0, Len: 0
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 0
Header length: 32 bytes
Flags: 0x0002 (SYN)
0... .... = Congestion Window Reduced (CWR): Not set
.0.. .... = ECN-Echo: Not set
..0. .... = Urgent: Not set
...0 .... = Acknowledgment: Not set
.... 0... = Push: Not set
.... .0.. = Reset: Not set
.... ..1. = Syn: Set
.... ...0 = Fin: Not set
Window size: 65535
Checksum: 0xecb2 (correct)
Options: (12 bytes)
Maximum segment size: 1438 bytes
NOP
Window scale: 3 (multiply by 8)
NOP
NOP
SACK permitted
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 34 d2 1c 40 00 40 06 6e e5 a3 98 d9 61 a3 98 .4..@.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 08 00 00 00 00 80 02 ./..'..7........
0030 ff ff ec b2 00 00 02 04 05 9e 01 03 03 03 01 01 ................
0040 04 02 ..
Frame 2 (66 bytes on wire, 66 bytes captured)
Arrival Time: Apr 3, 2007 11:57:06.379505000
Time delta from previous packet: 0.000247000 seconds
Time since reference or first frame: 0.000247000 seconds
Frame Number: 2
Packet Length: 66 bytes
Capture Length: 66 bytes
Ethernet II, Src: 00:00:f0:8a:c9:88, Dst: 00:0b:6a:b1:16:aa
Destination: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Source: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.47 (163.152.217.47), Dst Addr: 163.152.217.97 (163.152.217.97)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 52
Identification: 0x18a0 (6304)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: TCP (0x06)
Header checksum: 0xe861 (correct)
Source: 163.152.217.47 (163.152.217.47)
Destination: 163.152.217.97 (163.152.217.97)
Transmission Control Protocol, Src Port: 10111 (10111), Dst Port: 4087 (4087), Seq: 0, Ack: 1, Len: 0
Source port: 10111 (10111)
Destination port: 4087 (4087)
Sequence number: 0
Acknowledgement number: 1
Header length: 32 bytes
Flags: 0x0012 (SYN, ACK)
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
.... ..1. = Syn: Set
.... ...0 = Fin: Not set
Window size: 65535
Checksum: 0xb219 (correct)
Options: (12 bytes)
Maximum segment size: 1460 bytes
NOP
Window scale: 0 (multiply by 1)
NOP
NOP
SACK permitted
SEQ/ACK analysis
This is an ACK to the segment in frame: 1
The RTT to ACK the segment was: 0.000247000 seconds
0000 00 0b 6a b1 16 aa 00 00 f0 8a c9 88 08 00 45 00 ..j...........E.
0010 00 34 18 a0 40 00 80 06 e8 61 a3 98 d9 2f a3 98 .4..@....a.../..
0020 d9 61 27 7f 0f f7 31 cc 08 a9 8c 37 c5 09 80 12 .a'...1....7....
0030 ff ff b2 19 00 00 02 04 05 b4 01 03 03 00 01 01 ................
0040 04 02 ..
Frame 3 (54 bytes on wire, 54 bytes captured)
Arrival Time: Apr 3, 2007 11:57:06.379552000
Time delta from previous packet: 0.000047000 seconds
Time since reference or first frame: 0.000294000 seconds
Frame Number: 3
Packet Length: 54 bytes
Capture Length: 54 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0xd21d (53789)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6ef0 (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 1, Ack: 1, Len: 0
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 1
Acknowledgement number: 1
Header length: 20 bytes
Flags: 0x0010 (ACK)
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: 372440
Checksum: 0x3d09 (correct)
SEQ/ACK analysis
This is an ACK to the segment in frame: 2
The RTT to ACK the segment was: 0.000047000 seconds
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 28 d2 1d 40 00 40 06 6e f0 a3 98 d9 61 a3 98 .(..@.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 09 31 cc 08 aa 50 10 ./..'..7..1...P.
0030 b5 db 3d 09 00 00 ..=...
Frame 4 (72 bytes on wire, 72 bytes captured)
Arrival Time: Apr 3, 2007 11:57:08.178127000
Time delta from previous packet: 1.798575000 seconds
Time since reference or first frame: 1.798869000 seconds
Frame Number: 4
Packet Length: 72 bytes
Capture Length: 72 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 58
Identification: 0xd220 (53792)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6edb (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 1, Ack: 1, Len: 18
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 1
Next sequence number: 19
Acknowledgement number: 1
Header length: 20 bytes
Flags: 0x0018 (PSH, ACK)
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: 372440
Checksum: 0xd529 (correct)
Data (18 bytes)
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 3a d2 20 40 00 40 06 6e db a3 98 d9 61 a3 98 .:. @.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 09 31 cc 08 aa 50 18 ./..'..7..1...P.
0030 b5 db d5 29 00 00 32 30 30 31 32 34 30 35 35 38 ...)..2001______
0040 2c 20 c0 cc c0 e7 bf ed , ......
Frame 5 (72 bytes on wire, 72 bytes captured)
Arrival Time: Apr 3, 2007 11:57:08.178451000
Time delta from previous packet: 0.000324000 seconds
Time since reference or first frame: 1.799193000 seconds
Frame Number: 5
Packet Length: 72 bytes
Capture Length: 72 bytes
Ethernet II, Src: 00:00:f0:8a:c9:88, Dst: 00:0b:6a:b1:16:aa
Destination: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Source: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.47 (163.152.217.47), Dst Addr: 163.152.217.97 (163.152.217.97)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 58
Identification: 0x18a1 (6305)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: TCP (0x06)
Header checksum: 0xe85a (correct)
Source: 163.152.217.47 (163.152.217.47)
Destination: 163.152.217.97 (163.152.217.97)
Transmission Control Protocol, Src Port: 10111 (10111), Dst Port: 4087 (4087), Seq: 1, Ack: 19, Len: 18
Source port: 10111 (10111)
Destination port: 4087 (4087)
Sequence number: 1
Next sequence number: 19
Acknowledgement number: 19
Header length: 20 bytes
Flags: 0x0018 (PSH, ACK)
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: 65517
Checksum: 0x8b05 (correct)
SEQ/ACK analysis
This is an ACK to the segment in frame: 4
The RTT to ACK the segment was: 0.000324000 seconds
Data (18 bytes)
0000 00 0b 6a b1 16 aa 00 00 f0 8a c9 88 08 00 45 00 ..j...........E.
0010 00 3a 18 a1 40 00 80 06 e8 5a a3 98 d9 2f a3 98 .:..@....Z.../..
0020 d9 61 27 7f 0f f7 31 cc 08 aa 8c 37 c5 1b 50 18 .a'...1....7..P.
0030 ff ed 8b 05 00 00 32 30 30 31 32 34 30 35 35 38 ......2001_____
0040 2c 20 c0 cc c0 e7 bf ed , ......
Frame 6 (54 bytes on wire, 54 bytes captured)
Arrival Time: Apr 3, 2007 11:57:08.367931000
Time delta from previous packet: 0.189480000 seconds
Time since reference or first frame: 1.988673000 seconds
Frame Number: 6
Packet Length: 54 bytes
Capture Length: 54 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0xd221 (53793)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6eec (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 19, Ack: 19, Len: 0
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 19
Acknowledgement number: 19
Header length: 20 bytes
Flags: 0x0010 (ACK)
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: 372424
Checksum: 0x3ce7 (correct)
SEQ/ACK analysis
This is an ACK to the segment in frame: 5
The RTT to ACK the segment was: 0.189480000 seconds
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 28 d2 21 40 00 40 06 6e ec a3 98 d9 61 a3 98 .(.!@.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 1b 31 cc 08 bc 50 10 ./..'..7..1...P.
0030 b5 d9 3c e7 00 00 ..<...
Frame 7 (54 bytes on wire, 54 bytes captured)
Arrival Time: Apr 3, 2007 11:57:09.401882000
Time delta from previous packet: 1.033951000 seconds
Time since reference or first frame: 3.022624000 seconds
Frame Number: 7
Packet Length: 54 bytes
Capture Length: 54 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0xd222 (53794)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6eeb (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 19, Ack: 19, Len: 0
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 19
Acknowledgement number: 19
Header length: 20 bytes
Flags: 0x0011 (FIN, ACK)
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
.... ...1 = Fin: Set
Window size: 372424
Checksum: 0x3ce6 (correct)
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 28 d2 22 40 00 40 06 6e eb a3 98 d9 61 a3 98 .(."@.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 1b 31 cc 08 bc 50 11 ./..'..7..1...P.
0030 b5 d9 3c e6 00 00 ..<...
Frame 8 (60 bytes on wire, 60 bytes captured)
Arrival Time: Apr 3, 2007 11:57:09.402202000
Time delta from previous packet: 0.000320000 seconds
Time since reference or first frame: 3.022944000 seconds
Frame Number: 8
Packet Length: 60 bytes
Capture Length: 60 bytes
Ethernet II, Src: 00:00:f0:8a:c9:88, Dst: 00:0b:6a:b1:16:aa
Destination: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Source: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Type: IP (0x0800)
Trailer: 000000000000
Internet Protocol, Src Addr: 163.152.217.47 (163.152.217.47), Dst Addr: 163.152.217.97 (163.152.217.97)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0x18a2 (6306)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: TCP (0x06)
Header checksum: 0xe86b (correct)
Source: 163.152.217.47 (163.152.217.47)
Destination: 163.152.217.97 (163.152.217.97)
Transmission Control Protocol, Src Port: 10111 (10111), Dst Port: 4087 (4087), Seq: 19, Ack: 20, Len: 0
Source port: 10111 (10111)
Destination port: 4087 (4087)
Sequence number: 19
Acknowledgement number: 20
Header length: 20 bytes
Flags: 0x0010 (ACK)
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: 65517
Checksum: 0xf2d1 (correct)
SEQ/ACK analysis
This is an ACK to the segment in frame: 7
The RTT to ACK the segment was: 0.000320000 seconds
0000 00 0b 6a b1 16 aa 00 00 f0 8a c9 88 08 00 45 00 ..j...........E.
0010 00 28 18 a2 40 00 80 06 e8 6b a3 98 d9 2f a3 98 .(..@....k.../..
0020 d9 61 27 7f 0f f7 31 cc 08 bc 8c 37 c5 1c 50 10 .a'...1....7..P.
0030 ff ed f2 d1 00 00 00 00 00 00 00 00 ............
Frame 9 (60 bytes on wire, 60 bytes captured)
Arrival Time: Apr 3, 2007 11:57:09.402234000
Time delta from previous packet: 0.000032000 seconds
Time since reference or first frame: 3.022976000 seconds
Frame Number: 9
Packet Length: 60 bytes
Capture Length: 60 bytes
Ethernet II, Src: 00:00:f0:8a:c9:88, Dst: 00:0b:6a:b1:16:aa
Destination: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Source: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Type: IP (0x0800)
Trailer: 000000000000
Internet Protocol, Src Addr: 163.152.217.47 (163.152.217.47), Dst Addr: 163.152.217.97 (163.152.217.97)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0x18a3 (6307)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 128
Protocol: TCP (0x06)
Header checksum: 0xe86a (correct)
Source: 163.152.217.47 (163.152.217.47)
Destination: 163.152.217.97 (163.152.217.97)
Transmission Control Protocol, Src Port: 10111 (10111), Dst Port: 4087 (4087), Seq: 19, Ack: 20, Len: 0
Source port: 10111 (10111)
Destination port: 4087 (4087)
Sequence number: 19
Acknowledgement number: 20
Header length: 20 bytes
Flags: 0x0011 (FIN, ACK)
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
.... ...1 = Fin: Set
Window size: 65517
Checksum: 0xf2d0 (correct)
0000 00 0b 6a b1 16 aa 00 00 f0 8a c9 88 08 00 45 00 ..j...........E.
0010 00 28 18 a3 40 00 80 06 e8 6a a3 98 d9 2f a3 98 .(..@....j.../..
0020 d9 61 27 7f 0f f7 31 cc 08 bc 8c 37 c5 1c 50 11 .a'...1....7..P.
0030 ff ed f2 d0 00 00 00 00 00 00 00 00 ............
Frame 10 (54 bytes on wire, 54 bytes captured)
Arrival Time: Apr 3, 2007 11:57:09.402259000
Time delta from previous packet: 0.000025000 seconds
Time since reference or first frame: 3.023001000 seconds
Frame Number: 10
Packet Length: 54 bytes
Capture Length: 54 bytes
Ethernet II, Src: 00:0b:6a:b1:16:aa, Dst: 00:00:f0:8a:c9:88
Destination: 00:00:f0:8a:c9:88 (SamsungE_8a:c9:88)
Source: 00:0b:6a:b1:16:aa (Asiarock_b1:16:aa)
Type: IP (0x0800)
Internet Protocol, Src Addr: 163.152.217.97 (163.152.217.97), Dst Addr: 163.152.217.47 (163.152.217.47)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0xd223 (53795)
Flags: 0x04
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (0x06)
Header checksum: 0x6eea (correct)
Source: 163.152.217.97 (163.152.217.97)
Destination: 163.152.217.47 (163.152.217.47)
Transmission Control Protocol, Src Port: 4087 (4087), Dst Port: 10111 (10111), Seq: 20, Ack: 20, Len: 0
Source port: 4087 (4087)
Destination port: 10111 (10111)
Sequence number: 20
Acknowledgement number: 20
Header length: 20 bytes
Flags: 0x0010 (ACK)
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: 372424
Checksum: 0x3ce5 (correct)
SEQ/ACK analysis
This is an ACK to the segment in frame: 9
The RTT to ACK the segment was: 0.000025000 seconds
0000 00 00 f0 8a c9 88 00 0b 6a b1 16 aa 08 00 45 00 ........j.....E.
0010 00 28 d2 23 40 00 40 06 6e ea a3 98 d9 61 a3 98 .(.#@.@.n....a..
0020 d9 2f 0f f7 27 7f 8c 37 c5 1c 31 cc 08 bd 50 10 ./..'..7..1...P.
0030 b5 d9 3c e5 00 00 ..<...
11. 연결 설정, 해제 시 패킷 흐름도를 그려라.
