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  1. Versions 0 to 3 of IP were experimental, and used between 1977 and 1979. Versions 2 and 3, and a draft of version 4, allowed an address length of up to 128 bits, but this was mistakenly reduced to 32 bits in the final version of IPv4. Versions 7-9 were prototypes of what eventually became IPv6.
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    Internet Protocol Version or IPV is a version of the Internet Protocol that can be one of the following: These are called IP addresses and are made up of binary values. The Internet Protocol Version 4 runs at 32 bits long, while the Internet Protocol Version 6 runs at 128 bits long.
    During the development of the first version of the Internet Protocol in the 1970s, the initial experimental versions 1 to 3 were not standardized. The first working version that was widely deployed was assigned version number 4. A separate protocol based on reliable connections was developed and assigned version 5.
    Internet Protocol version 4 is described in IETF publication RFC 791 (September 1981), replacing an earlier definition of January 1980 (RFC 760). In March 1982, the US Department of Defense decided on the Internet Protocol Suite (TCP/IP) as the standard for all military computer networking.
    The following Internet Experiment Note (IEN) documents describe version 3 of the Internet Protocol, prior to the modern version of IPv4: IEN 2 ( Comments on Internet Protocol and TCP ), dated August 1977 describes the need to separate the TCP and Internet Protocol functionalities (which were previously combined).
  3. WebMay 12, 2022 · Does frequent talk of IPv4 and IPv6 have you wondering about the other Internet Protocol version numbers? The ones that come before and in between 4 and 6? Or even after? Let's take a look at the …