Comparing the IPv4 and IPv6 HeadersThe IPv4 and IPv6 Version FieldsIPv4 Internet Header Length (IHL) FieldIPv4 Type of Service (ToS) and IPv6 Traffic Class FieldsIPv6 Flow Label FieldIPv4 Total Length Field, IPv6 Payload Length Field, and IPv6 JumbogramsIPv4 and IPv6 MTUsIPv4 FragmentationIPv6 Fragmentation: IPv6 Source OnlyIPv4 Protocol and IPv6 Next Header FieldsIPv4 Time to Live (TTL) and IPv6 Hop Limit FieldsChecksums: IPv4, TCP, and UDPIPv4 and IPv6 Source Address and Destination Address FieldsIPv4 Options and Padding Fields, IPv6 Fixed LengthIPv6 over EthernetPacket Analysis Using WiresharkExtension HeadersHop-by-Hop Options Extension HeaderRouting Extension HeaderFragment Extension HeaderIPsec: AH and ESP Extension HeadersEncapsulating Security Payload (ESP) Extension HeaderAuthentication Header (AH) Extension HeaderDestination Options Extension HeaderNo Next HeaderComparing IPv4 and IPv6 at a GlanceSummaryReview QuestionsReferencesRFCsWebsites