{"id":890,"date":"2025-10-26T06:40:53","date_gmt":"2025-10-26T06:40:53","guid":{"rendered":"https:\/\/thefasthost.net\/?p=890"},"modified":"2025-11-06T07:42:15","modified_gmt":"2025-11-06T07:42:15","slug":"how-to-calculate-ip-addresses-mastering-ipv4-and-ipv6-like-a-pro","status":"publish","type":"post","link":"https:\/\/thefasthost.net\/ja\/how-to-calculate-ip-addresses-mastering-ipv4-and-ipv6-like-a-pro\/","title":{"rendered":"IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u65b9\u6cd5\uff1a IPv4\u3068IPv6\u3092\u30de\u30b9\u30bf\u30ea\u30f3\u30b0\u3059\u308b"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>\u30e1\u30bf\u306e\u8aac\u660e\uff1a<\/strong> IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u306b\u6238\u60d1\u3046\uff1f \u3053\u306e\u30d7\u30ed\u30ac\u30a4\u30c9\u3067\u306f\u3001IPv4\u304a\u3088\u3073IPv6\u30a2\u30c9\u30ec\u30b9\u3001CIDR\u8868\u8a18\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 \u30de\u30b9\u30bf\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u4eca\u65e5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b0\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u306e\u69cb\u6210\u3001VPS\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u7528\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u5b9a\u3001\u63a5\u7d9a\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u57fa\u672c\u7684\u306a\u30b9\u30ad\u30eb\u3067\u3059\u3002 \u3053\u308c\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6574\u7406\u3057\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u304b\u306e\u9375\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u6b63\u76f4\u306b\u8a00\u3063\u3066\u307f\u307e\u3057\u3087\u3046\uff1a \u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5316\u300d\u3001\u300cCIDR\u300d\u3001\u300c16\u9032\u6570\u300d\u306a\u3069\u306e\u7528\u8a9e\u306f\u3001\u8105\u8feb\u7684\u306b\u898b\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001IP\u30a2\u30c9\u30ec\u30c3\u30b7\u30f3\u30b0\u306e\u8b0e\u3092\u89e3\u304d\u660e\u304b\u3057\u307e\u3059\u3002 IPv4\u3068IPv6\u306e\u4e21\u65b9\u306e\u30ed\u30b8\u30c3\u30af\u3092\u5206\u89e3\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u521d\u5fc3\u8005\u304b\u3089\u81ea\u4fe1\u306e\u3042\u308b\u30d7\u30ed\u306b\u5909\u8eab\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">IP\u30a2\u30c9\u30ec\u30b9\u3068\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IP\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u4e00\u610f\u306e\u6570\u5024\u30e9\u30d9\u30eb\u3067\u3059\u3002 \u305d\u306e\u4e3b\u306a\u76ee\u7684\u306f\u4e8c\u91cd\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8b58\u5225\u60c5\u5831\uff1a<\/strong> \u30db\u30b9\u30c8\u307e\u305f\u306f\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5834\u6240\uff1a<\/strong> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u4f4d\u7f6e\u3092\u63d0\u4f9b\u3057\u3001\u30c7\u30fc\u30bf\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306e\u30d1\u30b9\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30bd\u30b3\u30f3\u306e\u4f4f\u6240\u3068\u3057\u3066\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u305d\u308c\u304c\u306a\u3051\u308c\u3070\u3001\u30c7\u30fc\u30bf\u30d1\u30b1\u30c3\u30c8\u306f\u3069\u3053\u306b\u884c\u3051\u3070\u3044\u3044\u306e\u304b\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u3002 2\u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fIPv4\u3068IPv6\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c 1 \u90e8\uff1a IPv4 \u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IPv4 \u306f\u3001\u304a\u305d\u3089\u304f\u3042\u306a\u305f\u304c\u6700\u3082\u3088\u304f\u77e5\u3063\u3066\u3044\u308b\u30ef\u30fc\u30af\u30db\u30fc\u30b9\u3067\u3059\uff08\u4f8b\uff1a <code>172.217.14.228<\/code>\uff09. IPv4 \u30a2\u30c9\u30ec\u30b9\u306f 32 \u30d3\u30c3\u30c8\u306e\u6570\u5024\u3067\u3001\u901a\u5e38\u306f 4 \u3064\u306e 8 \u30d3\u30c3\u30c8\u6570\u5b57 \uff08\u30aa\u30af\u30c6\u30c3\u30c8\uff09 \u3067 10 \u9032\u5f62\u5f0f\u3067\u8a18\u8ff0\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPv4\u306e\u300c\u8a08\u7b97\u300d\u90e8\u5206\u306f\u3001\u307b\u3068\u3093\u3069\u5e38\u306b <strong>\u30b5\u30d6\u30cd\u30c3\u30c8 \u5316 \u300d<\/strong>. \u3053\u308c\u306f\u3001\u5927\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u3088\u308a\u5c0f\u3055\u304f\u3001\u3088\u308a\u7ba1\u7406\u53ef\u80fd\u306a\u30b5\u30d6\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5206\u5272\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002 \u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001 <strong>\u30b5\u30d6\u30cd\u30c3\u30c8 \u30de\u30b9\u30af<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3b\u306a\u6982\u5ff5\uff1a \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3068CIDR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u6b21\u306e2\u3064\u306e\u90e8\u5206\u304c\u3042\u308a\u307e\u3059\u3002 THE \u306e <strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af ID<\/strong> \u305d\u3057\u3066 The <strong>\u30db\u30b9\u30c8 ID<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af ID:<\/strong> \u30c7\u30d0\u30a4\u30b9\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u8b58\u5225\u3057\u307e\u3059\u3002 \uff08\u901a\u308a\u306e\u540d\u524d\u3068\u540c\u3058\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30db\u30b9\u30c8 ID:<\/strong> \u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002 \uff08\u30cf\u30a6\u30b9\u30ca\u30f3\u30d0\u30fc\u3068\u540c\u3058\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c A \u300d <strong>\u30b5\u30d6\u30cd\u30c3\u30c8 \u30de\u30b9\u30af<\/strong> \u306f\u3001IP \u30a2\u30c9\u30ec\u30b9\u3092\u300c\u30de\u30b9\u30af\u300d\u3059\u308b 32 \u30d3\u30c3\u30c8\u756a\u53f7\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u5206\u3092\u30db\u30b9\u30c8\u90e8\u5206\u304b\u3089\u660e\u78ba\u306b\u5206\u96e2\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u306a\u305f\u306f2\u3064\u306e\u4e00\u822c\u7684\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u305d\u308c\u3092\u898b\u308b\u3067\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c9\u30c3\u30c8\u4ed8\u304d 10 \u9032\u6570\uff1a<\/strong> <code>255.255.255.0<\/code><\/li>\n\n\n\n<li><strong>CIDR \u8868\u8a18\uff1a<\/strong> <code>\/24<\/code> \uff08\u3053\u308c\u306f\u3088\u308a\u8fd1\u4ee3\u7684\u3067\u52b9\u7387\u7684\u3067\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c \u4e21\u65b9 \u300d <code>255.255.255.0<\/code> &lt;&lt; <code>\/24<\/code> MEAN THE <em>\u6700\u521d\u306e24\u30d3\u30c3\u30c8<\/em> \uff08\u6700\u521d\u306e 3 \u30aa\u30af\u30c6\u30c3\u30c8\uff09\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af ID \u3067\u3042\u308a\u3001 <em>\u6700\u5f8c\u306e8\u30d3\u30c3\u30c8<\/em> \uff08\u6700\u5f8c\u306e\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u306f\u30db\u30b9\u30c8 ID \u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30de\u30b8\u30c3\u30af\uff1a \u30d0\u30a4\u30ca\u30ea AND<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30ad\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u308b\u306b\u306f\u3001\u7c21\u5358\u306a\u64cd\u4f5c\u304c1\u3064\u3060\u3051\u3067\u3059\u3002 THE \u306e <strong>bitwise \u304a\u3088\u3073<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IP \u30a2\u30c9\u30ec\u30b9\uff1a<\/strong> <code>192.168.1.150<\/code><\/li>\n\n\n\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff1a<\/strong> <code>\/24<\/code> \uff09\u3067\u3042\u308b\u3002 <code>255.255.255.0<\/code>)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f55\u304c\u8d77\u3053\u3063\u3066\u3044\u308b\u304b\u3092\u898b\u308b\u305f\u3081\u306b\u30d0\u30a4\u30ca\u30ea\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u5c0f\u6570\u70b9 \u5c0f\u6570\u70b9<\/th><th>\u30d0\u30a4\u30ca\u30ea\u30fc \u30d0\u30a4\u30ca\u30ea\u30fc<\/th><\/tr><tr><td><code>192.168.1.150<\/code><\/td><td><code>11000000.10101000.00000001.10010110<\/code><\/td><\/tr><tr><td><code>255.255.255.0<\/code><\/td><td><code>11111111.11111111.11111111.00000000<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306b\u3001\u30d3\u30c3\u30c8\u5358\u4f4d\u306e AND \u6f14\u7b97(1AND 1 = 1, 1 AND 0 = 0 = 0, 0 AND 0 = 0 = 0)\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>  11000000.10101000.00000001.10010110(IP)&amp; 11111111.11111111.11111111.\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b --------------------------------------------------------------------------------------------------------------------- \u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- \u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\u200b\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u7d50\u679c\u3092 10 \u9032\u6570\u306b\u5909\u63db\u3057\u307e\u3059\u3002 <code>192.168.1.0<\/code>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u306a\u305f\u306e\u6700\u521d\u306e\u4f4f\u6240\u3092\u8a08\u7b97\u3057\u307e\u3057\u305f\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3059\u3079\u3066\u306e\u4e3b\u8981\u306aIPv4\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\uff08\u7c21\u5358\u306a\u65b9\u6cd5\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\uff1a <strong><code>192.168.1.150 \/24<\/code><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30afID\uff09:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u81ea\u4f53\u3092\u8b58\u5225\u3057\u307e\u3059\u3002 \u7bc4\u56f2\u5185\u306e\u6700\u521d\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8a08\u7b97\uff1a<\/strong> IP \u3068\u30b5\u30d6\u30cd\u30c3\u30c8 \u30de\u30b9\u30af\u306e\u9593\u3067\u30d3\u30c3\u30c8\u5358\u4f4d\u306e AND \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u7d50\u679c\uff1a<\/strong> <code>192.168.1.0<\/code> \uff08\u4e0a\u8a18\u3067\u8a08\u7b97\u3057\u305f\u901a\u308a\uff09<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u30a2\u30c9\u30ec\u30b9\u3002 <em>\u300c ALL \u300d<\/em> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u3002 \u7bc4\u56f2\u5185\u306e\u6700\u5f8c\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8a08\u7b97\uff1a<\/strong> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af ID\uff08<code>192.168.1.0<\/code>\uff09. \u30db\u30b9\u30c8\u90e8\u5206\uff08\u6700\u5f8c\u306e 8 \u30d3\u30c3\u30c8\u307e\u305f\u306f\u6700\u5f8c\u306e\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u3067\u3001\u3059\u3079\u3066\u306e\u30d3\u30c3\u30c8\u3092 <code>1<\/code>.\n<ul class=\"wp-block-list\">\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff1a <code>11000000.10101000.00000001.00000000<\/code><\/li>\n\n\n\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff1a <code>11000000.10101000.00000001.11111111<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7d50\u679c\uff1a<\/strong> <code>192.168.1.255<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. \u6700\u521d\u306e\u4f7f\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u30c7\u30d0\u30a4\u30b9\uff08\u30eb\u30fc\u30bf\u30fc\u306a\u3069\uff09\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6700\u521d\u306eIP\u3002<\/li>\n\n\n\n<li><strong>\u8a08\u7b97\uff1a<\/strong> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 + 1<\/li>\n\n\n\n<li><strong>\u7d50\u679c\uff1a<\/strong> <code>192.168.1.1<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. \u6700\u5f8c\u306e\u4f7f\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76ee\u7684\uff1a<\/strong> \u30c7\u30d0\u30a4\u30b9\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6700\u5f8c\u306e IP\u3002<\/li>\n\n\n\n<li><strong>\u8a08\u7b97\uff1a<\/strong> \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9 - 1<\/li>\n\n\n\n<li><strong>\u7d50\u679c\uff1a<\/strong> <code>192.168.1.254<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. \u30db\u30b9\u30c8\u7dcf\u6570\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8a08\u7b97\uff1a<\/strong> \u30db\u30b9\u30c8\u30d3\u30c3\u30c8\u306e\u6570\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002 A \u306e <code>\/24<\/code> \u30db\u30b9\u30c8\u306b 8 \u30d3\u30c3\u30c8\u3092\u6b8b\u3057\u307e\u3059\uff08<code>32 - 24 = 8<\/code>\uff09. \u5f0f\u306f\u3001 The formula is $2^n \u306e$ (Where ) $\u300c N \u300d$ \u306f\u30db\u30b9\u30c8\u30d3\u30c3\u30c8\u306e\u6570\u3067\u3059\uff09\u3002\n<ul class=\"wp-block-list\">\n<li>$2^8 = 256$ \u7dcf\u4f4f\u6240<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\uff1a<\/strong> $2^n - 2$ \uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u6e1b\u7b97\u3057\u307e\u3059\u3002\n<ul class=\"wp-block-list\">\n<li>$2^8 - 2 = 254$ \u4f7f\u7528\u53ef\u80fd\u306a IP \u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u306e\u8981\u7d04 <code>192.168.1.150 \/24<\/code>:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff1a<\/strong> <code>192.168.1.0<\/code><\/li>\n\n\n\n<li><strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff1a<\/strong> <code>192.168.1.255<\/code><\/li>\n\n\n\n<li><strong>\u30db\u30b9\u30c8\u7bc4\u56f2\uff1a<\/strong> <code>192.168.1.1<\/code> - <code>192.168.1.254<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d1\u30fc\u30c82\uff1a IPv6\u30a2\u30c9\u30ec\u30b9\u3092\u300c\u8a08\u7b97\u300d\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IPv6\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u4f5c\u6210\u3055\u308c\u307e\u3057\u305f\u3002 \u305d\u308c\u306f32\u3067\u306f\u306a\u304f128\u30d3\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3001\u975e\u5e38\u306b\u591a\u304f\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPv6 \u30a2\u30c9\u30ec\u30b9\u306e\u4f8b\uff1a <code>2001:0db8:85a3:0000:0000:0000:8a2e:0370:7334<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IPv6\u5f62\u5f0f\u3068\u7565\u8a9e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u306b\u3001IPv6\u306e\u300c\u8a08\u7b97\u300d\u306f\u3001\u8907\u96d1\u306a\u30d0\u30a4\u30ca\u30ea\u306b\u3064\u3044\u3066\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\uff1a<\/strong> 8\u3064\u306e16\u30d3\u30c3\u30c8\u30d6\u30ed\u30c3\u30af\uff08\u30d8\u30ad\u30b9\u30c6\u30c3\u30c8\uff09\u300116\u9032\u6570\u3067\u66f8\u304b\u308c\u3001\u30b3\u30ed\u30f3\u3067\u533a\u5207\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>16 \u9032\u6570\uff1a<\/strong> \u6570\u5b57 0-9 \u3068 a-f \u306e\u6587\u5b57\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7565\u8a9e\u30eb\u30fc\u30eb(Crucial!)\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30fc\u30c7\u30a3\u30f3\u30b0\u30bc\u30ed\u3092\u7701\u7565\uff1a<\/strong> \u3069\u306e\u30d6\u30ed\u30c3\u30af\u3067\u3082\u3001\u5148\u982d\u306e\u30bc\u30ed\u3092\u524a\u9664\u3067\u304d\u307e\u3059\u3002\n<ul class=\"wp-block-list\">\n<li><code>0db8 \u306e<\/code> -> <code>db8 \u306e<\/code><\/li>\n\n\n\n<li><code>0000<\/code> -> <code>0<\/code><\/li>\n\n\n\n<li><code>0370<\/code> -> <code>370<\/code><\/li>\n\n\n\n<li>\u79c1\u305f\u3061\u306e\u4f8b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <code>2001:db8:85a3:0:0:8a2e:370:7334<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9023\u7d9a\u3057\u305f\u30bc\u30ed\u3092\u5727\u7e2e\u3057\u3066\u4e0b\u3055\u3044\uff1a<\/strong><em>\u4f4f\u6240\u3054\u3068\u306b1\u56de<\/em>, \u9023\u7d9a\u3059\u308b\u30bc\u30ed\u30d6\u30ed\u30c3\u30af\u306e 1 \u3064\u306e\u6587\u5b57\u5217\u3092\u4e8c\u91cd\u30b3\u30ed\u30f3\uff08<code>::<\/code>).\n<ul class=\"wp-block-list\">\n<li>\u79c1\u305f\u3061\u306e\u4f8b\uff1a <code>2001:db8:85a3:0:0:8a2e:370:7334<\/code><\/li>\n\n\n\n<li>\u306b\u306a\u308a\u307e\u3059\u3002\uff1a <code>2001:db8:85a3::8a2e:370:7334<\/code> ( THE ) <code>0:0<\/code> \u5727\u7e2e\u3055\u308c\u305f\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">IPv6\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u300d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">IPv6 \u306f CIDR \u8868\u8a18\u3092\u4f7f\u7528\u3057\u3066 <strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9<\/strong> \uff08\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u300d\u306e\u90e8\u5206\uff09\u3068\u3001 <strong>\u300c \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 ID \u300d<\/strong> \uff08\u300c\u30db\u30b9\u30c8\u300d\u306e\u90e8\u5206\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LAN \u306e\u5178\u578b\u7684\u306a IPv6 \u5272\u308a\u5f53\u3066\u306f\u3001 <code>\/64<\/code>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f4f\u6240\uff1a<\/strong> <code>2001:db8:85a3:aaaa:02c4:31ff:fe1e:45a1 \/64<\/code><\/li>\n\n\n\n<li><strong>\u3053\u308c\u306f\u3001\u6b21\u306e\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08\u6700\u521d\u306e64\u30d3\u30c3\u30c8\uff09:<\/strong> <code>2001:db8:85a3:aaaaa<\/code><\/li>\n\n\n\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 ID\uff08\u6700\u5f8c\u306e 64 \u30d3\u30c3\u30c8\uff09:<\/strong> <code>02c4:31ff:fe1e:45a1<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">IPv6\u3067\u306f\u3001\u5b9f\u969b\u306b\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3092\u300c\u8a08\u7b97\u300d\u3057\u307e\u305b\u3093\u3002 \u63a5\u982d\u8f9e \u63a5\u982d\u8f9e <em>is \u3067\u3059\u3002<\/em> \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff1a<\/strong> <code>2001:db8:85a3:aaaa::\/64<\/code> \uff08\u30db\u30b9\u30c8\u90e8\u5206\u3092 <code>::<\/code>)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">IPv4\u3068\u306f\u7570\u306a\u308a\u3001IPv6\u306b\u306f\u300c\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u300d\u304c\u3042\u308a\u307e\u305b\u3093\u3002 <strong>\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8 \u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8<\/strong> \u305d\u306e\u305f\u3081\u306b \u307e\u305f\u3001\u6700\u521d\u306e\u30a2\u30c9\u30ec\u30b9\uff08\u30db\u30b9\u30c8\u90e8\u5206\u306e\u3059\u3079\u3066\u306e\u30bc\u30ed\uff09 <em>is \u3067\u3059\u3002<\/em> \u3053\u306e\u30a2\u30c9\u30ec\u30b9\u306f \"Subnet-Router anycast address\" \u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IPv6\u30db\u30b9\u30c8\u306e\u300c\u8a08\u7b97\u300d\u306f\u3057\u3070\u3057\u3070\u81ea\u52d5\u3067\u3059\u3002 64 \u30d3\u30c3\u30c8 \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 ID \u306f\u3001\u4e00\u822c\u7684\u306b\u6b21\u306e 2 \u3064\u306e\u65b9\u6cd5\u306e\u3044\u305a\u308c\u304b\u3067\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>SLAAC(Stateless Address Autoconfiguration)\u3068\u306f<\/strong> \u30c7\u30d0\u30a4\u30b9\u306f\u81ea\u52d5\u7684\u306b\u72ec\u81ea\u306e\u4e00\u610f\u306e ID \u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>EUI-64 \u3088\u308a\uff1a<\/strong> \u30c7\u30d0\u30a4\u30b9\u306f\u300148 \u30d3\u30c3\u30c8 MAC \uff08\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\uff09 \u30a2\u30c9\u30ec\u30b9\u3068\u633f\u5165\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 <code>FF: FE \u3067\u3059\u3002<\/code> \u771f\u3093\u4e2d\u306b64\u30d3\u30c3\u30c8ID\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u306a\u305c\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u304b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IP\u30a2\u30c9\u30ec\u30c3\u30b7\u30f3\u30b0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001Web\u30b5\u30fc\u30d3\u30b9\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5c02\u7528IP:<\/strong> \u5f53\u793e\u304b\u3089\u5c02\u7528\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3068\u3001\u30b5\u30a4\u30c8\u306b\u56fa\u6709\u306eIPv4\u307e\u305f\u306fIPv6\u30a2\u30c9\u30ec\u30b9\u304c\u53d6\u5f97\u3055\u308c\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u8a55\u5224\u3068SSL\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a<\/strong> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb \u30eb\u30fc\u30eb\u3068\u30a2\u30af\u30bb\u30b9 \u30ea\u30b9\u30c8\u3092\u69cb\u6210\u3059\u308b\u306b\u306f\u3001IP \u7bc4\u56f2\u307e\u305f\u306f\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff1a<\/strong> \u8907\u6570\u306e\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc(VPS)\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u3089\u306e\u9593\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 IP \u3092\u5272\u308a\u5f53\u3066\u308b\u65b9\u6cd5\uff08<code>10.x.x.x.x<\/code> OR \u306e <code>172.16.x.x \u306e<\/code>) \uff09\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/li>\n\n\n\n<li><strong>\u672a\u6765\u306fIPv6\u3067\u3059\u3002<\/strong> Web \u306f IPv6 \u306b\u79fb\u884c\u3057\u3066\u3044\u307e\u3059\u3002 \u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u5b8c\u5168\u306bIPv6\u5bfe\u5fdc\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3053\u3068\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u5c06\u6765\u4fdd\u8a3c\u3057\u3001\u8a2a\u554f\u8005\u306b\u3068\u3063\u3066\u6700\u9ad8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3042\u306a\u305f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IP\u30a2\u30c9\u30ec\u30c3\u30b7\u30f3\u30b0\u306f\u30c0\u30fc\u30af\u30a2\u30fc\u30c8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u305d\u308c\u306f\u8ad6\u7406\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002 \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af(IPv4)\u3067IP\u3092\u5206\u89e3\u3059\u308b\u65b9\u6cd5\u3068\u3001\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08IPv6\u306e\u5834\u5408\uff09\u306e\u8aad\u307f\u53d6\u308a\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u30b3\u30a2\u30b9\u30ad\u30eb\u3092\u5f97\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u77e5\u8b58\u3092\u6d3b\u304b\u3059\u6e96\u5099\u306f\u3067\u304d\u307e\u3057\u305f\u304b\uff1f \u79c1\u305f\u3061\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30e9\u30f3\u3092\u63a2\u7d22\u3057\u3001\u5171\u6709\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u304b\u3089\u3001\u5fc5\u8981\u306a\u3059\u3079\u3066\u306eIP\u3092\u5099\u3048\u305f\u5f37\u529b\u306a\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u307e\u3067\u3001\u5b8c\u74a7\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u898b\u3064\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/thefasthost.net\/ja\/ssd-wordpress-hosting\/\" data-type=\"page\" data-id=\"683\">\u79c1\u305f\u3061\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30e9\u30f3\u3092\u30d6\u30e9\u30a6\u30ba<\/a><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>\u30e1\u30bf\u306e\u8aac\u660e\uff1a IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u306b\u6238\u60d1\u3046\uff1f \u3053\u306e\u30d7\u30ed\u30ac\u30a4\u30c9\u3067\u306f\u3001IPv4\u304a\u3088\u3073IPv6\u30a2\u30c9\u30ec\u30b9\u3001CIDR\u8868\u8a18\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 \u30de\u30b9\u30bf\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u4eca\u65e5\u3002 \u65b0\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u306e\u69cb\u6210\u3001VPS\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u7528\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u5b9a\u3001\u63a5\u7d9a\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u57fa\u672c\u7684\u306a\u30b9\u30ad\u30eb\u3067\u3059\u3002 \u3053\u308c\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6574\u7406\u3057\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u304b\u306e\u9375\u3067\u3059\u3002 \u3057\u304b\u3057\u3001\u6b63\u76f4\u306b\u8a00\u3063\u3066\u307f\u307e\u3057\u3087\u3046\uff1a \u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5316\u300d\u3001\u300cCIDR\u300d\u3001\u300c16\u9032\u6570\u300d\u306a\u3069\u306e\u7528\u8a9e\u306f\u3001\u8105\u8feb\u7684\u306b\u898b\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001IP\u30a2\u30c9\u30ec\u30c3\u30b7\u30f3\u30b0\u306e\u8b0e\u3092\u89e3\u304d\u660e\u304b\u3057\u307e\u3059\u3002 IPv4\u3068IPv6\u306e\u4e21\u65b9\u306e\u30ed\u30b8\u30c3\u30af\u3092\u5206\u89e3\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u521d\u5fc3\u8005\u304b\u3089\u81ea\u4fe1\u306e\u3042\u308b\u30d7\u30ed\u306b\u5909\u8eab\u3057\u307e\u3059\u3002 \u300cWhat [\u2026]<\/p>","protected":false},"author":1,"featured_media":891,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"no","rop_publish_now_accounts":{"twitter_1268815233012940800_1268815233012940800":""},"rop_publish_now_history":[{"account":"twitter_1268815233012940800_1268815233012940800","service":"twitter","timestamp":1761461074,"status":"error"}],"rop_publish_now_status":"done","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[146],"tags":[152,154,155],"class_list":["post-890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledgebase","tag-ip-address","tag-ipv4-calculation","tag-ipv6-calculation"],"blocksy_meta":[],"jetpack_featured_media_url":"https:\/\/thefasthost.net\/wp-content\/uploads\/2025\/10\/ip_address_calculator_hero_image-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/posts\/890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/comments?post=890"}],"version-history":[{"count":0,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/posts\/890\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/media\/891"}],"wp:attachment":[{"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/media?parent=890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/categories?post=890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thefasthost.net\/ja\/wp-json\/wp\/v2\/tags?post=890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}