IPv6 header
Routing protocol classification computer networks.
Glossary of terms used for IPv6 addresses
Decomposition of the dot-decimal IPv4 address representation to its binary value
Multicast structure in IPv6
Several examples of IPv6 extension headers
IPv6 packet header
A general structure for an IPv6 unicast address
The Link-Local Unicast Address structure in IPv6
The global unicast address structure in IPv6
IPv6 Prefix Assignment mechanism with IANA, RIRs, and ISPs
IPv4-compatible IPv6 unicast address
IPv4-mapped IPv6 unicast address
A timeline for the standards governing IPv6
Monthly IPv6 allocations per regional Internet registry (RIR)

Open Shortest Path First (OSPF) is encapsulated in IP, but runs only on the IPv4 subnet, while the IPv6 version runs on the link using only link-local addressing.

- Routing protocol

Dual-stack clients should only be configured to prefer IPv6, if the network is able to forward IPv6 packets using the IPv6 versions of routing protocols.

- IPv6
IPv6 header

2 related topics

Alpha

The Internet Messenger by Buky Schwartz, located in Holon, Israel

Internet

Global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.

Global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.

The Internet Messenger by Buky Schwartz, located in Holon, Israel
T3 NSFNET Backbone, c. 1992.
ICANN headquarters in the Playa Vista neighborhood of Los Angeles, California, United States.
2007 map showing submarine fiberoptic telecommunication cables around the world.
Packet routing across the Internet involves several tiers of Internet service providers.
Number of mobile cellular subscriptions 2012–2016
As user data is processed through the protocol stack, each abstraction layer adds encapsulation information at the sending host. Data is transmitted over the wire at the link level between hosts and routers. Encapsulation is removed by the receiving host. Intermediate relays update link encapsulation at each hop, and inspect the IP layer for routing purposes.
Conceptual data flow in a simple network topology of two hosts (A and B) connected by a link between their respective routers. The application on each host executes read and write operations as if the processes were directly connected to each other by some kind of data pipe. After the establishment of this pipe, most details of the communication are hidden from each process, as the underlying principles of communication are implemented in the lower protocol layers. In analogy, at the transport layer the communication appears as host-to-host, without knowledge of the application data structures and the connecting routers, while at the internetworking layer, individual network boundaries are traversed at each router.
A DNS resolver consults three name servers to resolve the domain name user-visible "www.wikipedia.org" to determine the IPV4 Address 207.142.131.234
Creating a subnet by dividing the host identifier
This NeXT Computer was used by Tim Berners-Lee at CERN and became the world's first Web server.
Share of population using the Internet. See or edit source data.
Internet users per 100 population members and GDP per capita for selected countries.
Internet users per 100 inhabitants Source: International Telecommunication Union.
Internet users in 2015 as a percentage of a country's population Source: International Telecommunication Union.
'''Fixed broadband Internet subscriptions in 2012
as a percentage of a country's population''' Source: International Telecommunication Union.
'''Mobile broadband Internet subscriptions in 2012
as a percentage of a country's population''' Source: International Telecommunication Union.
Banner in Bangkok during the 2014 Thai coup d'état, informing the Thai public that 'like' or 'share' activities on social media could result in imprisonment (observed 30 June 2014).
Internet users by language<ref name=NIUBL-IWS>{{cite web|url=http://www.internetworldstats.com/stats7.htm|title=Number of Internet Users by Language|archive-url=https://web.archive.org/web/20120426122721/http://www.internetworldstats.com/stats7.htm|archive-date=26 April 2012|website=Internet World Stats, Miniwatts Marketing Group|date=31 May 2011|access-date=22 April 2012}}</ref>
Website content languages<ref name=UofCLBWApril2013>{{cite web|title=Usage of content languages for websites|url=http://w3techs.com/technologies/overview/content_language/all|work=W3Techs.com|access-date=26 April 2013|archive-url=https://www.webcitation.org/66ZQzUXh6?url=http://w3techs.com/technologies/overview/content_language/all|archive-date=31 March 2012|url-status=live}}</ref>

The technical underpinning and standardization of the core protocols (IPv4 and IPv6) is an activity of the Internet Engineering Task Force (IETF), a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise.

Routing tables are maintained by manual configuration or automatically by routing protocols.

Encapsulation of application data carried by UDP to a link protocol frame

Internet Protocol

Network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.

Network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.

Encapsulation of application data carried by UDP to a link protocol frame
A timeline for the development of the transmission control Protocol TCP and Internet Protocol IP.
First Internet demonstration, linking the ARPANET, PRNET, and SATNET on November 22, 1977

Its successor is Internet Protocol Version 6 (IPv6), which has been in increasing deployment on the public Internet since c. 2006.

Routers communicate with one another via specially designed routing protocols, either interior gateway protocols or exterior gateway protocols, as needed for the topology of the network.