IPv6 Header
The fields are:
�¡ Version.6.
�¡ Priority.Similar to DSCP in version 4, this eight-bit field is used to
describe relative priority.
�¡ Flow.20-bit flow label allows tagging in a manner similar to MPLS.
�¡ Length.The length of the data in the packet.
�¡ Next Header.Indicates how the bits after the IP header should be
interpreted. Could indicate TCP or UDP, or it could show an extension
header.
�¡ Hop Limit.Similar to TTL.
�¡ Source and Destination.IPv6 addresses.
Zero or more extension headers could follow, including:
�¡ Hop-by-hop options.Options for intermediate devices.
�¡ Destination options.Options for the end node.
�¡ Source routing.Specifies �gway stations�h that the route must include.
�¡ Fragmentation.Used to divide packets.
�¡ Authentication.Used to attest to source. Replaces the AH header from
IPSec.
�¡ Encryption.Replaces the IPSec ESP header.