D002 TCP-IP???????

1
HL-002 TCP/IP???????
ISSUE 5.1
??
???????????? ????,???????????
2
????
??????,?????

• ??TCP/IP???OSI????
• ??TCP/IP???????????
• ??IPv4????IPv6?????
• ??IP???????
• ????????

3
??

• TCP/IP??
• IP???
• ????

4
TCP/IP???OSI????

• TCP/IP????????????,?OSI?????????????

? ? ?
TCP/IP
???
OSI????
7
???
6
TCP/IP
???
5
???
???
4
???
???
3
?????
?????
2
???
???
1
5
TCP/IP???
6
TCP/IP??????
7
?????

• ????
• FTP?TFTP
• ????
• SMTP?POP3
• ????
• SNMP
• ????
• Telnet
• ????
• HTTP?DNS?WINS

???
???
???
?????
???
8
?????

• TCP(Transmission Control Protocol)
• UDP(User Datagram Protocol)

???
???
???
?????
???
9
TCP/UDP????
10
???

• ????????????????????????
• ???(Socket)IP???

53
20/21
23
25
69
161
80
11
????TCP???
??
??? IP10.1.1.2
Telnet 10.1.1.2,????23
1028
23
10.1.1.2
???
????
IP??
12
TCP????????
??
???
??SYN
SYN (seqa)
??SYN,??SYN,ACK
SYN (seqb,acka1)
??SYN, ????
SYN (seqa1,ackb1)
13
????
????????
???????!
win2048
ack 6145
14
?????

• Internet Protocol (IP)
• Internet Control Message Protocol (ICMP)
• Address Resolution Protocol (ARP)
• Reverse Address Resolution Protocol (RARP)

???
???
???
?????
???
15
IP????
16
ARP(??????)
10.0.0.2 ???MAC00-E0-FC-00-00-12
IP10.0.0.1/24 MAC00-E0-FC-00-00-11
IP10.0.0.2/24 MAC00-E0-FC-00-00-12
??10.0.0.2?MAC???
ARP Request
17
RARP(????????)
??IP???10.0.0.1
?????
RARP Server
??IP??????
RARP Request
18
ICMP??
??
A
B
B????
ICMP Echo Request
19
??

• TCP/IP??
• IP???
• ????

20
IPv6??

• IPv4????????
• Internet??????IPv4????????????
• ???????IP????????

IPv4????????
21
IP??????

• ?IPv4??????Internet??????
• ?IPv4???????????IP??????????,?1996???80?A?????,50
  ?B???,10?C????????,??????2010?IPv4???????
• ???????????????IP??
• CIDR,VLSM,NAT,?????????????IPv4????,???????????
• IP???????????IPv4?????

????????!
22
IPv6????

• ???????????????
• ?????32????128?
• ??(????)
• ???????????,??????
• ????????????,?????
• ??????????,????
• ??????IPSec?????,?????
• QoS??????
• ??Mobile IPv6

23
IPv6?????

• 1992? IETF???IPng???
• 1994? IPng????????IP????(IPv6)?????
• 1995? IPng?????IPv6?????
• 1996? IETF??????IPv6??? - 6BONE
• 1998? ???????IPv6????? - 6REN
• 1999? ??IETF??????????
• 1999? ???IPv6??,??????IPv6??,IPv6???????????
• 2001? ??????????IPv6,Windows XP,Linux,Solaris
• 2003? ??????????IPv6????
• 2003? ??????????????? - CNGI

24
??IPv6??

• IPv6???IPv4??????????
• ???????,?FE08.
• 4???,?????,?200112FC.
• ?????????,????????,? 12ABCD.
• ???????/xx???,?11/64
• ????????????????
• 00010123000000000000ABCD00000001/96
• 1123000ABCD01/96
• 1123ABCD01/96

25
??

• TCP/IP??
• IP???
• ????

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IP????

• IP????????????
• IP???????????????
• IP????????????????

10.110.192.111
20.130.188.144
27
IP????
32bit
?? ?? ?
255
255
255
255
?? ?
11111111
11111111
11111111
11111111
27 26 25 24 23 22 21 20
128 64 32 16 8 4 2 1
IP????
192
168
100
122
11000000
10101000
01100100
01111010
28
IP????
(??)
29
??IP??
30
?????

• ?????????????,???????????B???172.16.0.0,??255.255.
  0.0?????

31
?????

• B???172.16.0.0

172.16.4.1, 255.255.255.0
172.16.8.1, 255.255.255.0
32
????
201.222.5.8
201.222.5.9
255.255.255.248
255.255.255.248
201.222.5.0
255.255.255.0
201.222.5.16
201.222.5.17
255.255.255.248
255.255.255.248
201.222.5.24
201.222.5.25
255.255.255.248
255.255.255.248
201.222.5.32
201.222.5.33
255.255.255.248
255.255.255.248
33
B???????
34
C???????
35
??????(VLSM)
192.168.1.32/27
192.168.1.160/30
192.168.1.64/27
?? 192.168.1.0
192.168.1.164/30
ISP
192.168.1.168/30
192.168.1.96/27
192.168.1.172/30
192.168.1.128/27
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??????(CIDR)

• CIDR?????????,???????????

198.168.1.0/24
198.168.2.0/24
ISP
???? 198.168.0.0/16
198.168.3.0/24
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????

• TCP/IP????OSI??????
• TCP/IP???????????
• IP??????
• IP??????

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