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Editorial Team
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Asked: 2026-05-31T20:09:38+00:00

ok, i know, this time i’ll be banned with ip banned :D my question

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ok, i know, this time i’ll be banned with ip banned 😀
my question is quite strange: why only the V4 and then jumped to V6 are adopted! why when hearing about internet history we dont find IP V3 or IP V2?! why they dident Just adopt the IP V5, this was logic no?

because personnaly (am dumb) i thought that 4 and 6 were the number of bytes used…

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1 Answer

  1. Editorial Team

    The gap in version sequence between IPv4 and IPv6 resulted from the
    assignment of number 5 to the experimental Internet Stream Protocol in
    1979, which however was never referred to as IPv5

    http://en.wikipedia.org/wiki/IP_address#IP_versions

    IPv1, 2, & 3 would actually be part of the TCP/IP protocols, of which
    there were 3 versions. IPv4 is were they split the 2 in to separate
    protocols and created an updated IP protocol.

    http://itknowledgeexchange.techtarget.com/itanswers/what-happened-to-ipv1-ipv2-ipv3-and-ipv5/

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