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??? TCP/IP ??

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Title: TCP/IP Author: Flora Last modified by: Flora Created Date: 2/16/2004 1:31:27 AM Document presentation format: – PowerPoint PPT presentation

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Title: ??? TCP/IP ??


1
??? TCP/IP ??
  • 3-1 TCP/IP ???????
  • 3-2 ??????
  • 3-3 ??????
  • 3-4 ??
  • 3-5 ??

2
  • 3-6 ??
  • 3-7 ?????
  • 3-8 IP ????
  • 3-9 ????
  • 3-10 ??????

3
3-1 TCP/IP???????
  • TCP/IP?????????1964?,??????????????????,??????????
    ??????????????????1969??????????????ARPA???????
  • ?1982??,??????TCP/IP??,????????????????????1983???
    ARPANet??????????TCP/IP?????,?????TCP/IP??????

4
3-2 ??????
  • OSI???????????,???
  • Application(???)
  • Presentation(???)
  • Session(???)
  • Transport(???)
  • Network(???)
  • DataLink(?????)
  • Physical(???)
  • TCP/IP?????,??????????
  • Application(???)
  • Transport(???)
  • Internet(?????)
  • Network(???)

5
OSI?TCP/IP??????????
OSI????? TCP/IP???? Microsoft Network
Application(???) Application(???) Application Interface (???????)
Presentation(???) Application(???) Application Interface (???????)
Session(???) Application(???) Application Interface (???????)
Transport(???) Transport(???) Transport Device Interface (???????)
Network(???) Internet (?????) Network Driver Interface (???????)
DataLink(?????) Network(???) Physical Network Layer(?????)
Physical(???) Network(???) Physical Network Layer(?????)
6
3-2-1 IP
  • IP????(packet)????????,??TCP/IP
    ??????????????????????32??????????????????????????
    ??????????

7
???IP??????
8
IP????
  • IP???????32??????,???????,???????(Network
    ID)/16Bits?????(Host ID)/16Bits,????IPNetwork ID
    Host ID????AE?????????0(??A)?10(??B)?110(??C)?1
    110(??D)????

9
IP?????
? ? ???? Network Host ???? ????
Class A 0 7bits 24bits 1.x.x.x - 126.x.x.x ???
Class B 10 14bits 16bits 128.n.x.x-191.n.x.x ????
Class C 110 21bits 8bits 192.n.n.x-223.n.n.x ????
Class D 1110 - - 224.- -239.- ????
Class E 1111 - - 240.- -255.- ?????
10
3-2-2 ARP
  • ??????????,??????????IP?MAC???????????????IP???,??
    ?????????????ARP(??????)?????????MAC???
  • ?????????MAC??,?????ARP????????????????,?????????A
    RP????????????,ARP?????????????

11
3-2-3 TCP
  • TCP???????,??????????????????????????TCP??????????
    ???????????????????????????????????,????????????
    ??????????????????????????????
  • ???????????(Sliding Window)

12
TCP????
13
????
  • TCP?????SQN?ACK???????????????????????????????????
    ????,??????????????,??????Sliding
    Window??????????????,??????????????????

14
3-2-4 UDP
  • UDP???????????????????,???IP????????????UDP???????
    ?????????,???????????????????UDP?TCP??????????????
    ??????????,???????????
  • UDP???????????????????????,?????????????????????,?
    ?????????

15
3-2-5 ICMP
  • ??????????(Internet Control Message
    Protocol,ICMP)???????TCP?UDP??????????????????????
    ??????,??????????,????????????????????????????????
    ????????ping???

16
3-3 ??????
  • DNS?????? (Domain Name System),???????,???????????
    ??????????????? (Domain Name)???(IP)??????
  • ?????? (DNS) ?????? IP ??????????,????????????????
    ?

17
(1) ???????
18
(2) ???????????
19
(3) ?????????????
20
3-4 ??( Encapsulation )
  • ? TCP/IP ??????,??????????????????????????????????
    ( header ) ?????,???????????????????????,????????
    ???????????????????,????????????????,???????????

21
??????????????
22
3-5 ??
  • ????????????????,????????????????,????????????????
    ???????????????????,????????????,????????(
    Demultiplexing ) ?

23
???????????
24
3-6 ??
  • ??????????????????(???????????????)??,?????IP?????
    ?????????????,???????,TCP???????????????
  • ???????????,???119??????, FTP????TCP???21,??Telnet
    ????TCP???23,TFTP(????????)????UDP???69?

25
3-7 ?????
  • Internet ??(ISOC,Internet Society)???????????Inter
    ne t ?????????????
  • Internet ???????(IAB,Internet Architecture
    Board)??????????????
  • Internet ??????(IETF,Internet Engineering Task
    Force)??????????,???9???(?????????????)?
  • Internet ??????(IRIF,Internet Research Task
    Force)???????????????

26
TCP/IP???????
  • ?? TCP/IP ??????,???????????????,??????????,?????
    Internet Network Information Center (INTERNIC)
    ??????,????????????(? DNS ?)?TCP/IP ????????
    Request For Comment (RFC) ??????????RFC ???????
    TCP/IP ????,????????

27
3-8 IP ????
  • ??????????????(??????)??????????(????????),??IP???
    ??????????????,?????????????????,?????????????????
    ?????????????

28
IP??????????
  • (1) ?????,??????IP??????????????,?????????????????
    ?????????????
  • (2) ?????,????????????????????,???????????????????
    ???????????
  • (3) ?????,???????????????,????????????????????

29
3-9 ????
  • TCP/IP ??????????????,????????????????,?????? ???
    ?????? 61 ???????
  • TCP/IP ??????????????,???????????????? TCP/IP
    ?????????,??????????????????????????,?????????
    WWW?E-MAIL?FTP?DNS ?????

30
3-9-1 SMTP
  • SMTP????? (Internet)???????(E-mail)?????,?????????
    ?(POP3)??????????????????????,????,SMTP????,?POP3?
    ?????

31
????????
32
3-9-2 Telnet
  • TELNET???TCP/IP????????????????????????????(client
    )???????(server),?????????????,?????????????????,?
    ??????????????,??????????????,????????????????

33
3-9-2 ??????
  • NTP(Network Time Protocol)??????????D.L.
    Mills???1985???,??????????????????,?????????????,?
    ????????????????

34
3-9-4 ??????
  • Finger ?????????????????????????? Unix ???????
    finger ,???????????????????
  • Whois ???????????(?IP Address?Domain
    Name?)???????????????Internet????

35
3-10 ??????
  • ?????????????????????????????????e
    mail??????,???????????,???????????,?????????(FTP)?
    ????????(TFTP)?
  • ????????Web?????????,??????FTP?TFTP??????????

36
3-10-1 TFTP
  • ????????????????????,TFTP ?? UDP ?? TCP
    ?????,????????,?????,??????? ROM
    ??,?????????????,????????ROM???TFTP??,????? TFTP
    ????????

37
3-10-2 FTP
  • ??????? Internet ?????????FTP????,?????????????,??
    ???????????????,??FTP???Internet???,??????????????
    ????
  • ????FTP???,?????????????????,?????????????FTP?????
    ?FTP????????? ?anonymous?????????????,????????????
    ????
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