What Is Ipv4 and Ipv6?

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Work Cited: http://en.wikipedia.org/wiki/IPv4 http://en.wikipedia.org/wiki/IPv6 http://ezinearticles.com/?IPv4-Vs-IPv6-(Advantages-and-Disadvantages)&id=5160096 http://EzineArticles.com/5160096 Research Assignment on IPv 4 and IPv6 What is IPv4 and IPv6? Internet Protocol version 4 (IPv4) is the fourth revision in the development of the Internet Protocol (IP) and the first version of the protocol to be widely deployed. Together with, Ipv6 it is at the core of standards-based internetworking methods of the Internet. As of 2012 IPv4 is still the most widely deployed Internet Layer protocol. IPv4 is a connectionless protocol for use on packet-switched Link Layered networks (e.g., Ethernet) It operates on a best effort delivery model, in that it does not guarantee delivery, nor does it assure proper sequencing or avoidance of duplicate delivery. These aspects, including data integrity, are addressed by an upper layer transport protocol, such as the Transmission Control Protocol (TCP). IPv4 uses 32-bit (four-byte) addresses, which limits the address space to 4294967296 (232) addresses. Addresses were assigned to users, and the number of unassigned addresses decreased. Ipv4 address exhaustion occurred on February 3, 2011. It had been significantly delayed by address changes such as class full network design, Classless Inter-Domain Routing, and network address translation (NAT). This limitation of IPv4 stimulated the development of Ipv6 in the 1990s, which has been in commercial deployment since 2006. IPv4 reserves special address blocks for private networks (~18 million addresses) and multicast addresses (~270 million addresses). IPv6 (Internet Protocol version 6) is a revision of the Internet Protocol (IP) developed by the Internet Engineering Task Force (IETF). IPv6 is intended to succeed Ipv4, which is the dominant communication protocol for most

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