:,,1965,,VLANIP(264025)VLANIP,IP,IP,IPMACIPVLAN(VirtualLocalAreaNet,VLAN),TCP/IPIP,IPTCP/IP,IP,IP,IPv4,,4IP,IPIPIP,IPEthernet,MACMACEthernetEthernet,EPROM,6IEEE,MAC,MAC,EthernetMAC1IPMAC1.1Windows98/ME,WinIpCfg,IP,MACWindowsNT/2000/XPIP2Config/all,IPAddessIP,PhysicalAddessMAC1.2VLANPING,IP,ARP-AMAC1.3LanHelperV1.0,NetBIOSDNSIPMAC(),,LanHelper,LANRegisterV0.99IP,,(MAC),Web,HTMLNetSuperV2.1VLAN,IP,,MAC,IP2IP700,,IP,,IP,,,,,()IP,IPVLAV,IP,,IP:a.IP(DHCP),IP,,,IP,IP,IPIPDHCP,b.IP,3IPIP,,,IP:a.TCP/IP,IP,,,;b.1420056,;c.,IP;d.IP,,,IPMAC,IP:ARP-SIPMAC:ARP-S10.2.40.4000-00-21-34-63-56IP10.2.40.4000-00-21-34-63-56MAC,,,EPROMMAC,MAC,MACWindows98/NT/2000MACMAC,,IP4IPIP,VLANIPVLANIP,MAC,:4.1IP,IP,PINGARP4.2PINGIP10.2.40.40,MS-DOS,(,):C:WindowsPING10.2.40.40RequesttimedoutReplyfrom10.2.40.40:bytes=32time1msTTL=128Replyfrom10.2.40.40:bytes=32time1msTTL=128Replyfrom10.2.40.40:bytes=32time1msTTL=128()PING,:;,MACARP4.3ARPARPVLAN,,:C:WindowsARP-aInterface:onInerfaceInternetAddress/PhysicalAddress/Type10.2.40.40/00-00-21-34-63-56/dynamic(),IP10.2.40.40MAC00-00-21-34-63-56MAC00-00-21-34-63-564.4MAC,,MACQuidwayS3050,QuidwayS3050,MACQuidwayS3050,WebMAC,VLAN,IP,(,IP,,MACAddressTable):indexmacaddresslearnedonportlearningmethodfilterpacketstothisaddress100:00:21:34:63:5613dynamicno200:00:81:65:c3:a0n/astaticno300:00:a2:f7:c3:e425dynamicno400:00:21:34:63:562dynamicno()4,MAC,2,,,,,MAC,VLAN,,,,MAC,MACMAC,MAC,,,IP,55.1IPIPIP,IP5.2VLAN,,VLAN,IPMACMAC,,,,5.3IP,,IP1,.IP.,2001;(5)2,.MACIP.,2002;(9)3,..,2000;(10)4URL:(:)24JournalofInformationNo.6,2005