文档介绍：IPv6LabAPAN26Queenstown,NewZealandOlympic2008Website (NewZealanddelegationdancesitupinOlympicVillage,,2008)http://en./venues/olympicvillage/headlines/?ProblemswithIPv4“Addressisrunningout!”RoutingtableexplosionSecurityissueQoS…NumberResourceReportIPv6ALLOCATIONSRIRstoLIRs/ISPs (Jan1999–March2008)HowmanytotalallocationshavebeenmadebyeachRIR?Intermsof/32s,howmuchtotalspacehaseachRIRallocated?Protocolversion6(RFC)Over200relatedRFCsAnewtypeofIPaddressAnewtypeofIPpacketAnewIPprotocolstackofOS20octets+options:13fields,lassFlowLabelPayloadLengthNextHeaderHopLimit128-bitSourceAddress128-bitDestinationAddress4122416IPv6Header 40Bytes,8Fields128-bitaddressspace340,282,366,920,938,463,463,374,607,431,768,211,456addresses()DifferencesBetweenv4&v6Feature IPv4 IPv6Addresslength 32bits 128bitsIPSecsupport Optional RequiredQoSsupport Some BetterFragmentation Hostsandrouters HostsonlyPacketsize 576bytes 1280bytesChecksuminheader Yes NoOptionsinheader Yes NoLink-layeraddressresolution ARP(broadcast) MulticastNeighbor DiscoveryMessagesMulticastmembership IGMP MulticastListener Discovery(MLD)RouterDiscovery Optional RequiredUsesbroadcasts Yes NoConfiguration Manual,DHCP Automatic,DHCPDNSnamequeries UsesArecords UsesAAAA recordsDNSreversequeries UsesIN-