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Line 1: {{short description\|Smallest message entity exchanged using Internet Protocol version 6}} An '''IPv6 packet''' is the smallest message entity exchanged using [[~~IPv6\|~~Internet Protocol version 6]] (IPv6). [[Network packet\|Packet]]s consist of control information for addressing and routing and a [[payload (computing)\|payload]] of user data. The control information in IPv6 packets is subdivided into a mandatory fixed [[header (computing)\|header]] and optional extension headers. The payload of an IPv6 packet is typically a [[datagram]] or segment of the higher-level [[transport layer]] protocol, but may be data for an [[internet layer]] (e.g., [[ICMPv6]]) or [[link layer]] (e.g., [[OSPF]]) instead. IPv6 packets are typically transmitted over the link layer (i.e., over [[Ethernet]] or [[Wi-Fi]]), which encapsulates each packet in a [[frame (networking)\|frame]]. Packets may also be transported over a higher-layer [[tunneling protocol]], such as [[IPv4]] when using [[6to4]] or [[Teredo tunneling\|Teredo]] transition technologies. Line 144: ===Authentication Header (AH) and Encapsulating Security Payload (ESP)=== The ''[[~~IPsec#Authentication Header\|~~Authentication Header]]'' and the ''[[~~IPsec#Encapsulating Security Payload\|~~Encapsulating Security Payload]]'' are part of [[IPsec]] and are used identically in IPv6 and in IPv4.{{Ref RFC\|4302}}{{Ref RFC\|4303}} ==Payload==

IPv6 packet: Difference between revisions