2015~ 2016
瀛﹀勾
绗簩瀛︽湡鏈熸湯鑰冭瘯
缃戠粶鍗忚鍒嗘瀽
A
鍗?/p>
绛旀鍙婅瘎鍒嗙粏鍒?/p>
涓�銆侀�夋嫨棰橈紙姣忛
1
鍒嗭紝鍏?/p>
20
鍒嗭級
1-5
锛?/p>
A
C
D
C
C
6-10
锛?/p>
C
B
B
B
C
11-15
锛?/p>
C
C
C
C
B
16-20
锛?/p>
B
C
C
D
A
浜屻�佸～绌洪锛堟瘡绌轰袱鍒嗭紝鍏?/p>
20
鍒嗭級
1. 800
鍚?/p>
2.
C
14
14
3. 30
100
80
70
4. 4
涓夈�佸垎鏋愰锛?/p>
35
鍒嗭級
1.
锛堟瘡涓瓟妗?/p>
1
鍒嗭級
(1)
3
鐗?/p>
锛?/p>
2
锛?/p>
1480
1480
1020
锛?/p>
3
锛?/p>
0
185
370
锛?/p>
4
锛?/p>
1
1
0
2.
锛堟瘡绌?/p>
1
鍒嗭紝鍏?/p>
15
鍒嗭級
锛?/p>
1
锛?/p>
8c:89:a5:73:46:38
锛?/p>
8c:89:a5:73:46:15
锛?/p>
ARP
锛?/p>
f:ff:ff:ff:ff:ff
锛?/p>
2
锛?/p>
IPV4
锛?/p>
38
锛?/p>
0x ac 11 84 30(172.17.132.48)
锛?/p>
0x ac 11 84 32(172.17.132.50)
锛?/p>
TCP
锛?/p>
鍚︼紱
DF=1
锛?/p>
鏃?/p>
锛?/p>
3
锛?/p>
0x 04 e3(1251)
锛?/p>
0x 00 19 (25)
锛?/p>
SMTP
3.
绛旀锛?/p>
锛?/p>
1
锛?/p>
19
锛?/p>
1
鍒嗭級
锛?/p>
2
锛?/p>
4
涓紝鍒嗗埆涓?/p>
01 04 05 C8
锛?/p>
05 06 12 BF 20 3D
锛?/p>
07 02
锛?/p>
0D 03 06
锛?/p>
8
鍒嗭級
锛?/p>
3
锛夊洖搴旂‘璁わ紙
Configure-Ack
锛夋姤鏂囷紝
锛?/p>
1
鍒嗭級
鎶ユ枃鍐呭涓猴細
锛?/p>
4
鍒嗭級
7E FF 03 C0 21
02
01 00 13 01 04 05 C8 05 06 12 BF 20 3D 07 02 0D 03 06 7E
4.
锛?/p>
1
锛夋簮
IP
锛?/p>
121.195.240.233
锛?/p>
0x 79 c3 f0 39
锛?/p>
锛?/p>
2
鍒嗭級
鏈嶅姟鍣細
211.71.233.21
( 0x d3 47 e9 15)
锛?/p>
2
鍒嗭級
锛?/p>
2
锛?/p>
ICMP
鍥為�佽姹傚寘
锛?/p>
1
鍒嗭級
锛?/p>
3
锛?/p>
ICMP
瓒呮椂鎶ユ枃
锛?/p>
1
鍒嗭級
锛?/p>
4
锛?/p>
ICMP
搴旂瓟鎶ユ枃
锛?/p>
1
鍒嗭級
锛?/p>
5
锛?/p>
3
涓?/p>
(1
鍒?/p>
)
121.195.240.254
172.16.1.57
192.168.254.6
锛?/p>
1
涓湴鍧�
2
鍒嗭級
锛?/p>
6
锛?/p>
TTL
锛?/p>
1
銆?/p>
3
銆?/p>
5
銆?/p>
7
锛?/p>
1
銆?/p>
2
銆?/p>
3
銆?/p>
4
锛?/p>
1
涓?/p>
1
鍒嗭級
锛?/p>
7
锛夊綋婧愪富鏈烘敹鍒?/p>
ICMP
鍥為�佸簲绛斿寘鐨勬椂鍊欙紝鐭ラ亾宸插埌杈炬湇鍔″櫒銆?/p>
锛?/p>
3
鍒嗭級