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補足
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ARIN管理となっていたので、[ARAIN](https://www.arin.net/)のページをグーグルのサイト検索「site:www.arin.net 172 arin」で検索した所
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[IPV4 PRIVATE ADDRESS SPACE AND FILTERING](https://www.arin.net/knowledge/address_filters.html)
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[IPV4 PRIVATE ADDRESS SPACE AND FILTERING | ARAIN](https://www.arin.net/knowledge/address_filters.html)
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2018/09/16夜追記
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探していてやっと見つけました。
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上記内容は根拠が薄かったので、他の根拠を探していてやっと見つけました。
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[why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class](https://superuser.com/questions/784978/why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class)
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[why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class | superuser](https://superuser.com/questions/784978/why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class)
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[RFC 1918 network range choices](https://mailman.nanog.org/pipermail/nanog/2017-October/092636.html)
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[RFC 1918 network range choices | nanog](https://mailman.nanog.org/pipermail/nanog/2017-October/092636.html)
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> As far as I recall the choice of the particular ranges were as follows:
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> 10/8: the ARPANET had just been turned off. One of us suggested it and
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よって影響は無いというのが回答です。
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※文中のJonは[Jon Postel氏](https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A7%E3%83%B3%E3%83%BB%E3%83%9D%E3%82%B9%E3%83%86%E3%83%AB)のことかと。
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あと検索時に見つけた参考情報
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[IANA IPv4 Special-Purpose Address Registry](https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml)
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[IANA IPv4 Special-Purpose Address Registry | IANA](https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml)
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追記
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RFC1918の共同著者による説明だと**未割り当て**のIPアドレスを選んだとのこと。
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RFC1918の共同著者(D. Karrenberg氏)による説明だと**未割り当て**のIPアドレスを選んだとのこと。
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よって影響は無いというのが回答です。
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探していてやっと見つけました。
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RFC1918の共同著者による
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RFC1918の共同著者による説明だと**未割り当て**のIPアドレスを選んだとのこと。
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よって影響は無いというのが回答です。
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[RFC 1918 network range choices](https://mailman.nanog.org/pipermail/nanog/2017-October/092636.html)
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> 10/8: the ARPANET had just been turned off. One of us suggested it and
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> Jon considered this a good re-use of this "historical" address block. We
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> also suspected that "net 10" might have been hard coded in some places,
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> so re-using it for private address space rather than in inter-AS routing
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> might have the slight advantage of keeping such silliness local.
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> 172.16/12: the lowest unallocated /12 in class B space.
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> 192.168/16: the lowest unallocated /16 in class C block 192/8.
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RFC1918の共同著者による解説だとクラスBとクラスCは**未割り当て**の番号を選んだとのこと。
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よって影響は無いというのが回答です。
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みつけたあああああ
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---
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2018/09/18追記
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探していてやっと見つけました。
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[why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class](https://superuser.com/questions/784978/why-did-the-ietf-specifically-choose-192-168-16-to-be-a-private-ip-address-class)
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[RFC 1918 network range choices](https://mailman.nanog.org/pipermail/nanog/2017-October/092636.html)
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RFC1918の著者による解説だと**未割り当て**の番号を選んだとのこと。
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あと検索時に見つけた参考情報
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[IANA IPv4 Special-Purpose Address Registry](https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml)
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[IANA IPv4 Address Space Registry | IANA](https://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml)を見る限りでは
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> 172/8 Administered by ARIN
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ARIN管理となっていたので、[ARAIN](https://www.arin.net/)のページをグーグルのサイト検索「site:www.arin.net 172 arin」で検索した所
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[IPV4 PRIVATE ADDRESS SPACE AND FILTERING](https://www.arin.net/knowledge/address_filters.html)
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