网络基础知识培训教材-课程03 IP协议_

3IP27.............................................................26.............................................................25............................................................25............................................................22InternetICMP.........................................21............................................................21............................................................194.2..............................................184.1IP...............................................17.................................................16............................................................16............................................................143.2IP...............................................113.1IP..........................................11IP..................................................10............................................................10............................................................72.3......................................................52.2......................................................32.1IP.................................................3IP...................................................21.1InternetIP............................................1...........................................................1...........................................................1...........................................................1...........................................................1..............................................................IP3InternetIPIPIPICMPüIPüIPIPüIPTCP/IPIllstrated,Volume1-TheProtocolsTCP/IPIllstrated,Volume1-TheImplementationIP311.1Internet-IPINTERNETIPIPIPIPIPIPIPTCP/IPIPARPAddressResolutionProtocolRARPReverseAddressResolutionProtocolInternetICMPInternetControlMessageProtcol1-1IPARPRARPIPICMPIP“TCP/IP”TCPIPTCPOSITCPTCPIP11IPIP32IPICMPTelnRARPTelnet,FTP...TCP,UDPARPIPTCP/IPIP2.1IPInternetIPInternet32bitIPInternetIPnet-idhost-idIPIPDDNNICIPInternetIPAEIP2IPnet-id;host-idDInternetIAB(InternetArchitectureBoard)EIPACIP330net-idhost-id10net-idhost-id110net-idhost-id111011110012348162431ABCDE2IPnet-idhost-idAIPIPBCIABIPnet-idhost-id32bitIP8IP10000000000010110000001100011111BIP128.11.3.31IPŸ0Ÿ1Ÿ0IPŸ1Ÿ0IP0.0.0.0Ÿ127.X.X.X.X.X.XLoopbacktestIP34Ÿ1255.255.255.2550.0.0.01IP1IP254223.255.25412.0.12.097.150C65.534191.254128.116.382B16.777.2141261126AIP1.IPIP2.IPnet-idmultihomedhost.3.Internetnet-id.4.IPnet-id3RBIP2.2IPIPAC21137.2IP70IPIPBIP351B553:::::::::::3IPIP[NETW93]IPOSI201985IPIPnet-idhost-idIP36TCP/IPsubnetOSIsubnetwork4subnetmask4aBIP4bTCP/IP32bit10104c4BIP655346bit621010bit102262*1022=633641ABCIP255.0.0.0,255.255.0.0255.255.255.02.3IP1.IPNSAPIP2.IPTCP/IPIP37TCP/IPhostsIPhostsIPnet-idhost-idnet-idhost-id11111111111111111111110000000000Subnet-id(a)(b)(c)B4DNSDomainNameSystemnameserver,IPresolverDNSnameserverDNS5host-ahost-bDNShost-bIP209.0.0.6:::host-b209.0.0608002B00EE0ADNSARPIP=209.0.0.6host-b08002B00EE0Ahost-aIP=209.0.0.5IPnet-id=209.0.05IPIP38IPARP5IP209.0.0.6ARP48bit08002B00EE0AIP32bit,MAC48bitIPARPARPARPcacheIPABIPARPBIPBIPBAAARPB:1.ARPARPBIP2.ARPARP3.BARPIPAARP4.ABARPARPBIPABBABAARPAARPIPARPBAARPBABARPBAIP39RARPRARPIPROMTCP/IPIPROMRARPIPRARPRARPRARPRARPARPRARPIPRARPRARPIPRARPIPIPInternet32bitIPInternetInternetIPIPIPARP2-1ABCIP2-22-3ARPIP310IPTCP/IP32bit46IPIPIP...DTRC0481619243120012345676IP6IP203.1IP14bit,IPIPIP424bit154IP60IP4460IP31138bit684D5T6R7C416bit655355OSIIPDUIP63bitMFMoreFragmentMF=1MF=0DFDon’tFragmentDF=07IP312OSIIPDU8IP13bitOSIIPDU16bit8TTLTimeToLive,323-425598bitIPUDP17TCP6ICMP1GGP3EGP8IGP9OSPF89ISOTP4291011IP313IPIP41001231bit2bit5bit7Option3.2IPIP4077041bit102bit8IP3140()12,Internet3850014279IPIP...081624319IPIP3151.——0072.——3.——IP4IPIP4IPŸ3(loosesourcerouting)Ÿ9(strictsourcerouting)103109IPIP(IP)IPIPIPIPIP316InternetŸ4(024)(1)2IP3IP4(UniversalTimer)IP20IP3-1IP3-2IP317()(hop)10AC323AB545:B:C:ARRRRR10IP3184.1IPIPABAIPIPnet-idARPABIPARPIPIPIPIPIP11MACMACIP319IP(1)(8)ARP080000102172ARP142.1.0.2108000010217208000000219730.0.0.1142.1.0.8080000102172080000002197142.1.0.830.0.0.181:A238ARP080000109715ARP30.0.0.108000010971508000012345630.0.0.1142.1.0.8080000123456080000109715142.1.0.830.0.0.14567MAC:080000123456MCA:080000102172IP:30.0.0.21IP:142.1.0.21:BMAC:080000109715IP:30.0.0.21MAC:0800000021975IP:142.1.0.811IP(MAC)AIPMACBA(7)(8)4.2IPIPIP320(defaultrouter)Internet128078IPIP8IP10.0.0.0211.0.0.0112.0.0.011.0.0.2113.0.0.0314.0.0.013.0.0.2315.0.0.010.0.0.2216.0.0.010.0.0.2215.0.0.016.0.0.010.0.0.013.0.0.012.0.0.014.0.0.011.0.0.0R4R1R3R2R6R5R7R8111.0.0.2212.0.0.112.0.0.212.0.0.314.0.0.114.0.0.213.0.0.113.0.0.411.0.0.1311.0.0.110.0.0.216.0.0.316.0.0.215.0.0.215.0.0.113.0.0.216.0.0.213.0.0.3R812IP321IP()4-1IP4-2IP322InternetICMPIPInternetICMP(InternetControlMessageProtocol)ICMPICMPICMPIPICMP13ICMPIP13ICMPIPICMP08163114ICMPICMPICMPICMPICMPICMP0Ech0()34(SourceQuench)IP3235(Redirect)8Echo111213(Timestamp)1417(AddressMask)18ICMPICMPICMPICMPICMPICMPICMP15:B:C:AR2R123115I