{"published":"2020-06-24 01:05:43","type":"rich","height":"190","categories":[],"provider_name":"Hatena Blog","blog_url":"https://blog.kyanny.me/","provider_url":"https://hatena.blog","url":"https://blog.kyanny.me/entry/2020/06/24/010543","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.kyanny.me%2Fentry%2F2020%2F06%2F24%2F010543\" title=\"IPv4 CIDR \u304c 192.168.0.0/28 \u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u5185\u306b 11 \u500b\u4ee5\u4e0a\u306e EC2 \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8d77\u52d5\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b - @kyanny&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","author_url":"https://blog.hatena.ne.jp/a666666/","blog_title":"@kyanny's blog","title":"IPv4 CIDR \u304c 192.168.0.0/28 \u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u5185\u306b 11 \u500b\u4ee5\u4e0a\u306e EC2 \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8d77\u52d5\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b","author_name":"a666666","image_url":null,"description":"Amazon VPC \u3084\u30b5\u30d6\u30cd\u30c3\u30c8\u3078\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u5b9f\u9a13\u3002 IPv4 CIDR \u304c 192.168.0.0/28 \u306e VPC \u3092\u4f5c\u308b AWS VPC \u3067\u306f /16 \u304b\u3089 /28 \u307e\u3067\u6307\u5b9a\u3067\u304d\u308b \u305d\u306e VPC \u5185\u306b IPv4 CIDR \u304c 192.168.0.0/28 \u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u4f5c\u308b /28 \u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u304c 28 \u30d3\u30c3\u30c8\u3067\u30db\u30b9\u30c8\u90e8\u304c 4 \u30d3\u30c3\u30c8\u306a\u306e\u3067\u3001 IP \u30a2\u30c9\u30ec\u30b9\u306e\u500b\u6570\u306f\u6700\u5927\u3067 24 = 16 \u500b \u3053\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u4e00\u3064\u3067 VPC \u5185\u306e CIDR \u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3044\u5207\u308b \u5b9f\u9a13\u7528\u306b t2.micro \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u7acb\u3061\u4e0a\u3052\u305f\u3044\u306e\u3067\u3001\u30a2\u30d9\u30a4\u30e9\u30d3\u30ea\u30c6\u30a3\u30be\u30fc\u30f3\u306b ap-northeast-1a \u2026"}