IPv6 Headers

Version field: First field in an IP header that specifies the version of IP

Traffic class field: An 8-bit field that defines the type of traffic contained within the IP datagram and allows for different classes of traffic to receive different priorities

Flow label field: 20-bit field that’s used in conjunction with the traffic class field for routers to make decisions about the quality of service level for a specific datagram

Payload length field: 16-bit field that defines how long the data payload section of the datagram is

Next header field: Defines what kind of header is immediately after this current one

Hop limit field: An 8-bit field that’s identical in purpose to the TTL field in an IPv4 header