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Computer Network and Distributed Lecture 4 Internet

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??? UTP,STP ????????? RJ-45. ????????????????????????. Access Point. ??????????? ... IPv4 Class. ???????????. Unicast ????????????????????????????????????????? ... – PowerPoint PPT presentation

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Title: Computer Network and Distributed Lecture 4 Internet


1
Computer Network and DistributedLecture
4???????????? (Internet)
????????? ??????? ????????????????????????????????
?????? ?????????????????????????
2
???????????? (Internet)
  • ????? ????? Inter Connection Network
  • ??????? ????????????????????????????????????????
    ? ??????????????????????

3
?????????????????????????????????????? ???????
?????????????????????????
4
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5
???????????????????????????????????
  • ???????????????????????????????????????????????
    ?????????? ???????????? ???Advanced Research
    Projects Agency (ARPA) ???? ?.?. 1969

6
???????????????????????
  • ??????????????????????????? ?.?. 2530 ???
  • ???????????????????????? ????????????????????????
    ???????? IDP (The International Development Plan)
    ???????????????????? ?????????????????????????????
    ?????????????????????????

7
  • ???? ?.?. 2538 ???????????????????????????????
    ?????????? ?????????????????????????????
    (Internet Thailand) ????????????????????????????
    (Internet Service Provider ISP)
  • ?????????????

8
????????????????????????????????
  • ????????????????????????? (analog Modem , ADSL
    Modem) ??????????????? ISP
  • ???????????????????? LAN (????????????????????????
    ????????????????????)

9
1.????????????????????????????????????????????
(ISP)
  • ?????????????????????????????????????????????????
    ??????????? ??????????????????????????
    ???????????????????????????????
    ????????????????????????????????????????????????

10
????????????????????? ISP
  • 1. ????????????????????
  • 2. ?????????????????????

11
??????????????????????? ????????????????????????
ISP
12
1.
????????
4.
2.
3.
13
Analog Digital
???????????
Analog
ISP
Digital
?????? analog
?????? analog
14
  • ???????????????????????????????????????? ?

56 kbps
15
Analog Digital
???????????
Spliter
ISP
Analog
Digital
?????? ADSL
?????? ADSL
16
???????????????????????? (Internet Service
Provider)???????????
17
  • Internet Thailand
  • A-net Internet
  • Internet KSC
  • CS-Loxinfo Internet
  • Asia Access
  • etc..

18
2. ???????????????????? LAN
  • ??????????????????????????????????????????????????
    ????????? LAN

19
??????????????????????? ?????????????????????????
LAN
20
?????????????????????
??? UTP,STP ????????? RJ-45
LAN card (NIC)
21
????????????????????????
22
Access Point
23
????????????????????????????????????????????????
24
???????????????????????
  • ????????????????????????????????????????????????
    ????????? ??? TCP/IP (Transmission Control
    Protocol/Internet Protocol)

25
???????? (Protocol)
  • ??? ????????????????????????????????????????

26
IP Address
  • Internet Protocol
  • ?????????????????????????????????????????????
    ??????????????????????????????????????????????
    ??????????????????????????????????????????
  • IP Address ?????? Network Layer

27
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28
????????? IP Address
  • IPv4 (????????) IPv6 (?????)
  • ???????????????? 4 ???
  • ???????????????????? 0 255
  • ??????????????????? (.)
  • ???? 203.183.233.6

29
????????? IP Address
  • 0.0.0.0 0.0.1.0
  • 0.0.0.1 0.0.1.1
  • 0.0.0.2 0.0.1.2
  • 0.0.0.255 0.0.1.255
  • 255.255.255.255

30
????????? IP Address
  • ??????????????????????? IP Address ??????????
  • ????????????
  • 256 x 256 x 256 x 256
  • 4,294,967,296 ???????

31
????????? IP Address
  • IPv4 ?????? 32 ???
  • ????????
  • 127. 5. 10. 3
  • 01111111.00000101.00001010.00000011

32
?????????????
  • ??? 10 ??????? 2
  • ??? 2 ??????? 10

33
??? 10 ??????? 2
  • ????????????????? ???????? ?????? 23710
    ??????? 2
  • ??????
  • 237 / 2 118 ??? 1
  • 118 / 2 59 ??? 0
  • 59 / 2 29 ??? 1
  • 29 / 2 14 ??? 1
  • 14 / 2 7 ??? 0
  • 7 / 2 3 ??? 1
  • 3 / 2 1 ??? 1
  • ans 111011012

34
??? 2 ??????? 10
  • ???????? ?????? 111011012 ??????? 10
  • ??????????????????????? 1 (??????????) ??????? 2
    ???????? ? ???????????????????????????????????????
    ????? ????
  • 128 , 64 , 32 , 16 , 8 , 4 , 2 , 1
  • ?????????????????????????????????????????????
    ????
  • 128 , 64 , 32 , 16 , 8 , 4 , 2 , 1
  • 1 1 1 0 1 1 0 1
  • ????????????????????????? 1 ????
  • 128 64 32 8 4 1
  • 23710

35
?????????
  • ???????????????????????????
  • 24310
  • 12510
  • ???????????????????????????
  • 110010112
  • 101010012

36
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37
16777214
16777216
38
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39
IPv4 Class
40
???????????
  • Unicast ?????????????????????????????????????????
  • Multicast ???????????????????????????????????????
  • Broadcast ???????????????????????????????????????
    ???????????????

41
IP class D E
  • Class D ??????? multicast address
  • Class E ???????????????

42
IP address ?????????
  • ???????????????????????? 0 ???????
    ???????????????????? (Subnet) ????
  • 15.0.0.0 , 180.5.0.0 , 202.29.53.0
  • ???????????????????????? 1 ???????
    ??????????????????? (broadcast) ????
  • 15.255.255.255 , 180.5.255.255 , 202.29.53.255
  • 0.0.0.0 ?????????????????? ???????????????????
    Default route
  • 127.x.x.x ???????????????????????????????????????
    ??????????? ????????????????????????????????????
    LanCard ??????????????????????

43
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44
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45
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46
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47
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48
IP address ???????????????????????????????????????
?????????? ??? 202.29.53.5
49
IP Address ????????????
  • ??????????????????????????????? ISP ??????? 1
    ??????? ????????????????????? ???????????????????
    ????? ISP ????????????
  • ??????????????????? InterNIC ???????????? IP ??
    ?????????????????????????????????????????
    ????????????????
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