Webサイトや書籍に例としてIPアドレスを掲載したい時、自分や他者のグローバルIPアドレスを使うわけにもいきません。読んだ人が、必要もないのにそのIPアドレスにアクセスしてしまうかもしれないからです。
そのため、「ドキュメント用のIPv4アドレス範囲」が「RFC6890」や「RFC5737」で定められています。
このページでは、「ドキュメントで例に使えるIPv4アドレス」を紹介します。
ドキュメントに利用できるIPv4アドレスの範囲
次の範囲内のIPv4アドレスを、ドキュメントで例に使うことができます。
- 192.0.2.0/24 (TEST-NET-1)
- 198.51.100.0/24 (TEST-NET-2)
- 203.0.113.0/24 (TEST-NET-3)
通常、この範囲に含まれるアドレスにアクセスしようとしても、どこにもルーティングされません。
なお、「ドキュメントに利用できるIPv6アドレスの範囲」については次の記事をご覧ください。
ドキュメントで例に使えるIPアドレスまとめ【IPv6編】
Webサイトや書籍に例としてIPv6アドレスを掲載したい時、自分や他者のグローバルIPv6アドレスを使うわけにもいきません。読んだ人が、必要もないのにそのIPv6アドレスにアクセスしてしまうかもしれないからです。 そのため、「ドキュメント...
linuxfan.info
2018.07.18
ドキュメントに利用できるIPv4アドレスの一覧
以下に、ドキュメントに利用できる全IPv4アドレスを掲載します。ただし、ネットワークアドレス（ホスト部のビットがすべて0）とブロードキャストアドレス（ホスト部のビットがすべて1）は除いてあります。
必要に応じて、コピー＆ペーストしてお使いください。
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192.0.2.254198.51.100.0/24 (TEST-NET-2)
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198.51.100.254203.0.113.0/24 (TEST-NET-3)
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