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AWSサブネットのIPアドレスについて

Posted at

192.168.1.0/29で例を挙げる

  • 192.168.0.0 ネットワークアドレス
  • 192.168.0.1 AWS予約(VPCルータ用)
  • 192.168.0.2 AWS予約(DNS用)
  • 192.168.0.3 AWS予約(将来予備)
  • 192.168.0.4 利用可能
  • 192.168.0.5 利用可能
  • 192.168.0.6 利用可能(/29の場合8-5=3個のIPが利用可能)
  • 192.168.0.7 ブロードキャストアドレス

192.168.1.0/28で例を挙げる

  • 192.168.0.0 ネットワークアドレス
  • 192.168.0.1 AWS予約(VPCルータ用)
  • 192.168.0.2 AWS予約(DNS用)
  • 192.168.0.3 AWS予約(将来予備)
  • 192.168.0.4 利用可能
  • ...
  • 192.168.0.14 利用可能(/28の場合16-5=11個のIPが利用可能)
  • 192.168.0.15 ブロードキャストアドレス
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