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TCP

TCP/IP????Novell NetWare??. ??????IP?????IP???IPX?????IPX??. ??????. ???????????????????Internet Control Message Protocol. ??????. Transmission Control Protocol (TCP), ?RFC793???,??????:??????????????????. ??????????. ??????????,TCP?????????????TCP?????????,TCP?????????????????????????

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TCP

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Presentation Transcript

    1. ????覧TCP/IP????Novell NetWare?? ???<ygh@dlut.edu.cn> ??????????

    2. TCP/IP????Novell NetWare?? ?????? IP????? IP??? IPX????? IPX??

    3. ?????? ?????? ??????? ?????? Internet Control Message Protocol

    4. ?????? Transmission Control Protocol (TCP), ?RFC793???,??????: ???? ???? ???? ???? ??

    5. ??????覧???? ??????????,TCP?????????????TCP?????????,TCP??????????????????????????????????????TCP??TCP??,???????????,????????????????????? ??????????socket???TCP??;TCP?????socket?????? ?????IP??/????????????????????;??socket??/??????????????????????

    6. ??????覧????

    7. ??????覧????

    8. ??????覧????

    9. ??????覧???? ??????????? ??????????,????????????????? ?????????????

    10. ??????覧??

    11. ??????覧??

    12. ???????

    13. ???????

    14. ??????

    15. ??????

    16. Internet Control Message Protocol

    17. Internet Control Message Protocol

    18. Internet Control Message Protocol

    19. ICMP Destination Unreachable Message Network unreachable Host unreachable Can稚 fragment Protocol unavailable Port unavaiable

    20. ICMP Destination Unreachable Message

    21. ICMP Destination Unreachable Message network unreachable覧if router A haven稚 a route to 10.1.2.0/24. A will send an unreachable with network unreachable code to Fred. host unreachable覧if web is down, router B will not get ARP reply from web. B will send an unreachable with host unreachable code.

    22. ICMP Destination Unreachable Message can稚 fragment覧if router A or B needed to fragment packet, but the do not fragment bit was set in the IP header, it would send an unreachable with the can稚 fragment value in the code field.

    23. ICMP Destination Unreachable Message protocol unavailable port unavailable

    24. Time Exceeded ICMP Message

    25. ICMP Redirect

    26. IP????? IP????:????? IP?? IP????:?????? IP????:??????

    27. IP????:????? ?RFC791????IP??,IP??????????????: ???????????????? IP???????????,??????,??????????? ???????????,?????????? ???????(???)?

    28. IP????:????? ????????????????????????,?????????? ?????????????????,?????????? ??????????????????;????????????? ????????????,???????????????? ??????,??????,???????????????? ??32???,??????(????????)?

    29. IP????:????? IP??

    30. IP????:?????

    31. IP????:?????

    32. IP????:?????

    33. IP????:????? ?? ???????????

    34. IP????:?????

    35. IP????:?????

    36. IP????:????? ???? ???????????????????: ??????????? ?????255.0.0.0,???????????? ?????255.255.0.0,???????????? ?????255.255.255.0,???????????? ?????????1?

    37. IP????:?????

    38. IP?? ??????,???????A,B,C??????????: IP????????????IP???????? ??IP???????????????????????????,????????????????A,B,C????

    39. IP?? ?????A,B?C??????? ???????????????????????? ?????????????????? ????????????????????????????

    40. IP??

    41. IP?? ????? Network number Subnet number Network address Subnet address Mask Default mask Subnet mask Host address IP address

    42. ??IP??:????? ??IP???????,???????????: ?IP????????????? ?IP???????????????????AND?? ???????????

    43. ??IP??:????? ???????

    44. ??IP??:?????? ????????? ????????? ????????? ???????1??,????????

    45. IP??? ??IP ?????? ???????IP??

    46. ??IP

    47. ??IP

    48. ??IP

    49. ????IP?? ????????????? ip address ip-address mask [secondary]

    50. ???????IP?? interface serial 0 encapsulation frame-relay interface serial 0.1 point-to-point ip address 150.10.1.251 255.255.255.0 frame-relay interface-dlci 44 interface serial 0.2 point-to-point ip address 150.10.2.251 255.255.255.0 frame-relay interface-dlci 45

    51. IPX?????

    52. IPX?????

    53. IPX?????

    54. IPX?????

    55. IPX?????

    56. IPX??

    57. IPX??

    58. ??:??B????????

    59. ??:??B????????

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