{"id":11776,"date":"2025-11-20T13:42:27","date_gmt":"2025-11-20T04:42:27","guid":{"rendered":"https:\/\/rakkoserver.com\/plus\/?p=11776"},"modified":"2026-01-30T10:56:59","modified_gmt":"2026-01-30T01:56:59","slug":"tool-cidr-calculator","status":"publish","type":"post","link":"https:\/\/rakkoserver.com\/plus\/tool-cidr-calculator\/","title":{"rendered":"CIDR\u8a08\u7b97\u30c4\u30fc\u30eb"},"content":{"rendered":"\n<div id=\"cidr-subnet-tool-root\">\n  <style>\n    #cidr-subnet-tool-root {\n      font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;\n      color: #222;\n      \/* font-size: 14px;  \u2190 \u56fa\u5b9a\u6307\u5b9a\u3092\u3084\u3081\u308b *\/\n      font-size: inherit; \/* \u30c6\u30fc\u30de\u306e\u672c\u6587\u30b5\u30a4\u30ba\u306b\u5408\u308f\u305b\u308b *\/\n    }\n    #cidr-subnet-tool-root * {\n      box-sizing: border-box;\n    }\n\n    .cidr-container {\n      max-width: 960px;\n      margin: 0 auto;\n    }\n\n    .cidr-section-title {\n      font-weight: 600;\n      margin: 16px 0 8px;\n      font-size: 15px;\n      color: #13284B;\n    }\n\n    .cidr-description {\n      margin: 0 0 8px;\n      color: #555;\n      \/* font-size: 13px; \u2190 \u56fa\u5b9a\u6307\u5b9a\u3092\u3084\u3081\u308b *\/\n      font-size: inherit; \/* \u672c\u6587\u3068\u540c\u3058\u306b\u3059\u308b *\/\n    }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u5165\u529b\u30a8\u30ea\u30a2 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    .cidr-input-area {\n      margin-top: 4px;\n    }\n\n    .cidr-input-row {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 8px;\n      align-items: center;\n      margin-bottom: 12px;\n    }\n\n    .cidr-input-row label {\n      font-size: 13px;\n      color: #444;\n      display: block;\n      margin-bottom: 4px;\n    }\n\n    .cidr-input-text {\n      flex: 1 1 220px;\n      min-width: 180px;\n    }\n\n    \/* \u67a0\u30fb\u80cc\u666f\u306f\u30c6\u30fc\u30de\u306b\u4efb\u305b\u308b\u3002\u5e45\u3060\u3051\u6307\u5b9a *\/\n    .cidr-input-text input,\n    .cidr-mask-select select {\n      width: 100%;\n      font-size: 14px;\n    }\n\n    .cidr-slider-wrapper {\n      flex: 0 0 200px;\n      min-width: 170px;\n      display: flex;\n      flex-direction: column;\n      gap: 4px;\n    }\n\n    .cidr-slider-wrapper input[type=\"range\"] {\n      width: 100%;\n      margin-top: 4px;\n    }\n\n    .cidr-slider-labels {\n      display: flex;\n      justify-content: space-between;\n      font-size: 11px;\n      color: #666;\n    }\n\n    .cidr-mask-select {\n      flex: 0 0 240px;\n      min-width: 200px;\n    }\n\n    .cidr-error {\n      margin-top: 4px;\n      color: #b00020;\n      font-size: 12px;\n    }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u30e1\u30a4\u30f3\u7d50\u679c \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    .cidr-main-card {\n      margin-top: 16px;\n      background: #fafafa;\n      border-radius: 4px;\n      box-shadow: 0 1px 3px rgba(0,0,0,0.08);\n      padding: 16px;\n    }\n\n    .cidr-main-card-header {\n      display: flex;\n      justify-content: space-between;\n      align-items: baseline;\n      gap: 8px;\n      margin-bottom: 8px;\n    }\n\n    .cidr-main-card-title {\n      font-size: 15px;\n      font-weight: 600;\n      color: #13284B;\n    }\n\n    .cidr-main-card-prefix {\n      font-size: 12px;\n      color: #666;\n      text-align: right;\n    }\n\n    .cidr-main-card-grid {\n      display: grid;\n      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));\n      gap: 12px;\n      margin-top: 8px;\n    }\n\n    .cidr-main-item-label {\n      font-size: 12px;\n      color: #666;\n      margin-bottom: 2px;\n    }\n\n    .cidr-main-item-value {\n      font-size: 15px;\n      font-weight: 600;\n      word-break: break-all;\n    }\n\n    .cidr-copyable {\n      display: flex;\n      align-items: center;\n      justify-content: space-between;\n      gap: 8px;\n    }\n\n    .cidr-copy-text {\n      flex: 1 1 auto;\n      word-break: break-all;\n    }\n\n    .cidr-copy-button {\n      flex: 0 0 auto;\n      border: 1px solid #ccc;\n      background: #fff;\n      color: #333;\n      padding: 3px 6px;\n      border-radius: 3px;\n      font-size: 11px;\n      cursor: pointer;\n      display: inline-flex;\n      align-items: center;\n      gap: 4px;\n      white-space: nowrap;\n    }\n    .cidr-copy-button:hover { border-color: #007cba; }\n    .cidr-copy-button:active { background: #f0f0f0; }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a73\u7d30 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    .cidr-secondary-section {\n      margin-top: 16px;\n      padding: 12px 14px;\n      background: #fff;\n      border-radius: 4px;\n      box-shadow: 0 1px 2px rgba(0,0,0,0.06);\n    }\n\n    .cidr-secondary-list {\n      margin: 4px 0 0;\n      padding: 0;\n      list-style: none;\n      font-size: 13px;\n    }\n\n    .cidr-secondary-list li {\n      display: flex;\n      justify-content: space-between;\n      gap: 8px;\n      padding: 4px 0;\n      border-bottom: 1px dotted #eee;\n    }\n\n    .cidr-secondary-list li:last-child {\n      border-bottom: none;\n    }\n\n    .cidr-secondary-label {\n      color: #555;\n      flex: 0 0 160px;\n      white-space: nowrap; \/* PC\u3067\u306f\u6298\u308a\u8fd4\u3055\u306a\u3044 *\/\n    }\n\n    .cidr-secondary-value {\n      flex: 1 1 auto;\n      text-align: right;\n      word-break: break-all;\n      color: #222;\n    }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u6280\u8853\u8005\u5411\u3051 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    .cidr-tech-section {\n      margin-top: 16px;\n      padding: 12px 14px;\n      background: #fff;\n      border-radius: 4px;\n      box-shadow: 0 1px 2px rgba(0,0,0,0.06);\n    }\n\n    .cidr-tech-table {\n      width: 100%;\n      border-collapse: collapse;\n      font-size: 12px;\n      margin-top: 8px;\n    }\n\n    .cidr-tech-table th,\n    .cidr-tech-table td {\n      text-align: left;\n      padding: 4px 6px;\n      border-bottom: 1px solid #eee;\n      vertical-align: top;\n    }\n\n    .cidr-tech-table th {\n      width: 140px;\n      color: #555;\n      font-weight: 600;\n      white-space: nowrap;\n    }\n\n    .cidr-tech-table td pre {\n      margin: 0;\n      white-space: pre-wrap;\n      word-break: break-all;\n      font-family: SFMono-Regular, Menlo, Monaco, Consolas, \"Liberation Mono\";\n      font-size: 12px;\n    }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u5168IP\u30ea\u30b9\u30c8 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    .cidr-iplist-section {\n      margin-top: 16px;\n      padding: 12px 14px;\n      background: #fff;\n      border-radius: 4px;\n      box-shadow: 0 1px 2px rgba(0,0,0,0.06);\n    }\n\n    .cidr-iplist-header {\n      display: flex;\n      justify-content: space-between;\n      align-items: center;\n      gap: 8px;\n      cursor: pointer;\n    }\n\n    .cidr-iplist-body {\n      margin-top: 8px;\n      display: none;\n    }\n    .cidr-iplist-body.active { display: block; }\n\n    .cidr-btn-primary {\n      display: inline-block;\n      padding: 6px 12px;\n      border-radius: 3px;\n      border: 1px solid #007cba;\n      background: #007cba;\n      color: #fff;\n      font-size: 13px;\n      font-weight: 500;\n      cursor: pointer;\n      text-align: center;\n    }\n    .cidr-btn-primary:hover { opacity: 0.9; }\n\n    .cidr-iplist-preview {\n      max-height: 200px;\n      overflow: auto;\n      border: 1px solid #eee;\n      border-radius: 3px;\n      padding: 6px;\n      background: #fafafa;\n      white-space: pre;\n      font-family: SFMono-Regular, Menlo, Consolas, monospace;\n      font-size: 12px;\n    }\n\n    .cidr-footer-note {\n      margin-top: 8px;\n      font-size: 11px;\n      color: #777;\n    }\n\n    \/* \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u30e2\u30d0\u30a4\u30eb\u6700\u9069\u5316 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\n    @media (max-width: 600px) {\n\n      \/* \u5165\u529b\uff1a\u5b8c\u5168\u306b\u7e26\u4e26\u3073\u3001\u5168\u5e45\u3001\u4f59\u767d16px *\/\n      .cidr-input-row {\n        display: block;\n      }\n\n      .cidr-input-text,\n      .cidr-slider-wrapper,\n      .cidr-mask-select {\n        width: 100%;\n        min-width: 0;\n        margin-bottom: 16px;\n      }\n\n      .cidr-slider-wrapper {\n        margin-top: 4px;\n      }\n\n      \/* \u30e1\u30a4\u30f3\u30ab\u30fc\u30c91\u5217 *\/\n      .cidr-main-card-grid {\n        grid-template-columns: 1fr !important;\n        gap: 16px;\n      }\n\n      \/* \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a73\u7d30\uff1a\u9699\u9593\u8abf\u6574\uff0b\u6298\u308a\u8fd4\u3057\u8a31\u53ef *\/\n      .cidr-secondary-list li {\n        padding: 4px 0;\n        gap: 4px;\n      }\n      .cidr-secondary-label {\n        flex: 0 0 130px;\n        white-space: normal;\n      }\n      .cidr-secondary-value {\n        text-align: right;\n      }\n\n      \/* \u6280\u8853\u8005\u5411\u3051\u8a73\u7d30\uff1a\u7e26\u7a4d\u307f *\/\n      .cidr-tech-table th,\n      .cidr-tech-table td {\n        display: block;\n        width: 100% !important;\n      }\n      .cidr-tech-table th {\n        margin-top: 8px;\n      }\n\n      \/* \u30b3\u30d4\u30fc\u884c\u306f\u6a2a\u4e26\u3073\u7dad\u6301 *\/\n      .cidr-copyable {\n        flex-direction: row;\n      }\n\n      \/* IP\u30ea\u30b9\u30c8\u30dc\u30bf\u30f3\u7e26\u4e26\u3073 *\/\n      #cidr-iplist-body > div {\n        display: flex;\n        flex-direction: column;\n        gap: 6px;\n      }\n\n      .cidr-iplist-preview {\n        font-size: 11px;\n        white-space: pre-wrap;\n        word-break: break-all;\n      }\n    }\n  <\/style>\n\n  <div class=\"cidr-container\" id=\"cidr-subnet-tool\">\n    <p class=\"cidr-description\">\n      IPv4\u30a2\u30c9\u30ec\u30b9\u3068\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u9577\uff08CIDR\uff09\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u30db\u30b9\u30c8\u7bc4\u56f2\u30fb\u30db\u30b9\u30c8\u6570\u30fb\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u3092\u307e\u3068\u3081\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002\n    <\/p>\n\n    <!-- \u5165\u529b -->\n    <div class=\"cidr-input-area\">\n      <p class=\"cidr-section-title\">\u5165\u529b<\/p>\n      <div class=\"cidr-input-row\">\n        <div class=\"cidr-input-text\">\n          <label for=\"cidr-ip-input\">IP\u30a2\u30c9\u30ec\u30b9 \/ CIDR<\/label>\n          <input id=\"cidr-ip-input\" type=\"text\" placeholder=\"\u4f8b\uff09192.168.1.1 \u307e\u305f\u306f 192.168.1.1\/24\">\n        <\/div>\n        <div class=\"cidr-slider-wrapper\">\n          <label for=\"cidr-prefix-slider\">\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u9577\uff08\/0\u301c\/32\uff09<\/label>\n          <input id=\"cidr-prefix-slider\" type=\"range\" min=\"0\" max=\"32\" value=\"24\">\n          <div class=\"cidr-slider-labels\">\n            <span>\/0<\/span><span id=\"cidr-prefix-current\">\/24<\/span><span>\/32<\/span>\n          <\/div>\n        <\/div>\n        <div class=\"cidr-mask-select\">\n          <label for=\"cidr-mask-select\">\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/label>\n          <select id=\"cidr-mask-select\"><\/select>\n        <\/div>\n      <\/div>\n      <p id=\"cidr-error-message\" class=\"cidr-error\" style=\"display:none;\"><\/p>\n    <\/div>\n\n    <!-- \u30e1\u30a4\u30f3\u7d50\u679c -->\n    <div class=\"cidr-main-card\">\n      <div class=\"cidr-main-card-header\">\n        <p class=\"cidr-main-card-title\">\u30e1\u30a4\u30f3\u8a08\u7b97\u7d50\u679c<\/p>\n        <p class=\"cidr-main-card-prefix\">\n          \u5bfe\u8c61\u30cd\u30c3\u30c8\u30ef\u30fc\u30af: <span id=\"cidr-main-network-label\">\u2013<\/span>\n        <\/p>\n      <\/div>\n      <div class=\"cidr-main-card-grid\">\n        <div>\n          <p class=\"cidr-main-item-label\">\u5229\u7528\u53ef\u80fd\u30db\u30b9\u30c8IP\u7bc4\u56f2<\/p>\n          <div class=\"cidr-copyable\">\n            <div class=\"cidr-main-item-value cidr-copy-text\" id=\"cidr-host-range\">\u2013<\/div>\n            <button class=\"cidr-copy-button\" data-copy-target=\"cidr-host-range\">\u30b3\u30d4\u30fc<\/button>\n          <\/div>\n        <\/div>\n        <div>\n          <p class=\"cidr-main-item-label\">\u5229\u7528\u53ef\u80fd\u30db\u30b9\u30c8\u6570<\/p>\n          <div class=\"cidr-copyable\">\n            <div class=\"cidr-main-item-value cidr-copy-text\" id=\"cidr-host-count\">\u2013<\/div>\n            <button class=\"cidr-copy-button\" data-copy-target=\"cidr-host-count\">\u30b3\u30d4\u30fc<\/button>\n          <\/div>\n        <\/div>\n        <div>\n          <p class=\"cidr-main-item-label\">\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/p>\n          <div class=\"cidr-copyable\">\n            <div class=\"cidr-main-item-value cidr-copy-text\" id=\"cidr-subnet-mask\">\u2013<\/div>\n            <button class=\"cidr-copy-button\" data-copy-target=\"cidr-subnet-mask\">\u30b3\u30d4\u30fc<\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <!-- \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a73\u7d30 -->\n    <div class=\"cidr-secondary-section\">\n      <p class=\"cidr-section-title\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a73\u7d30\u60c5\u5831<\/p>\n      <ul class=\"cidr-secondary-list\">\n        <li><span class=\"cidr-secondary-label\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/span><span class=\"cidr-secondary-value\" id=\"cidr-network-address\">\u2013<\/span><\/li>\n        <li><span class=\"cidr-secondary-label\">\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/span><span class=\"cidr-secondary-value\" id=\"cidr-broadcast-address\">\u2013<\/span><\/li>\n        <li><span class=\"cidr-secondary-label\">CIDR\u8868\u8a18<\/span><span class=\"cidr-secondary-value\" id=\"cidr-cidr-notation\">\u2013<\/span><\/li>\n        <li><span class=\"cidr-secondary-label\">IP\u30af\u30e9\u30b9<\/span><span class=\"cidr-secondary-value\" id=\"cidr-ip-class\">\u2013<\/span><\/li>\n      <\/ul>\n    <\/div>\n\n    <!-- \u6280\u8853\u8005\u5411\u3051 -->\n    <div class=\"cidr-tech-section\">\n      <p class=\"cidr-section-title\">\u6280\u8853\u8005\u5411\u3051\u8a73\u7d30\u30c7\u30fc\u30bf\uff082\u9032\u6570\u30fb10\u9032\u6570\u30fb16\u9032\u6570\u30fb\u6b63\u898f\u8868\u73fe\u30fbPTR\uff09<\/p>\n      <table class=\"cidr-tech-table\">\n        <tbody>\n          <tr><th>IP\u30a2\u30c9\u30ec\u30b9\uff082\u9032\u6570\uff09<\/th><td><pre id=\"cidr-ip-binary\">-<\/pre><\/td><\/tr>\n          <tr><th>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff082\u9032\u6570\uff09<\/th><td><pre id=\"cidr-mask-binary\">-<\/pre><\/td><\/tr>\n          <tr><th>IP\u30a2\u30c9\u30ec\u30b9\uff0810\u9032\u6570\u6574\u6570\uff09<\/th><td><pre id=\"cidr-ip-decimal\">-<\/pre><\/td><\/tr>\n          <tr><th>IP\u30a2\u30c9\u30ec\u30b9\uff0816\u9032\u6570\uff09<\/th><td><pre id=\"cidr-ip-hex\">-<\/pre><\/td><\/tr>\n          <tr><th>IPv4\u5f62\u5f0f\u30c1\u30a7\u30c3\u30af\u7528\u6b63\u898f\u8868\u73fe<\/th><td><pre id=\"cidr-ipv4-regex\">-<\/pre><\/td><\/tr>\n          <tr><th>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7bc4\u56f2\u7c21\u6613\u30de\u30c3\u30c1\u7528\u6b63\u898f\u8868\u73fe<\/th><td><pre id=\"cidr-network-regex\">-<\/pre><\/td><\/tr>\n          <tr><th>PTR\u30ec\u30b3\u30fc\u30c9\u5f62\u5f0f\uff08\u30db\u30b9\u30c8\uff09<\/th><td><pre id=\"cidr-ptr-host\">-<\/pre><\/td><\/tr>\n          <tr><th>PTR\u30be\u30fc\u30f3\u4f8b\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<\/th><td><pre id=\"cidr-ptr-zone\">-<\/pre><\/td><\/tr>\n        <\/tbody>\n      <\/table>\n      <p class=\"cidr-footer-note\">\u203b\/31, \/32 \u306e\u5834\u5408\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3092\u542b\u3080\u5168\u30a2\u30c9\u30ec\u30b9\u3092\u30db\u30b9\u30c8\u3068\u3057\u3066\u6271\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n    <\/div>\n\n    <!-- \u5168IP\u30ea\u30b9\u30c8 -->\n    <div class=\"cidr-iplist-section\">\n      <div class=\"cidr-iplist-header\" id=\"cidr-iplist-toggle\">\n        <p>\u5168IP\u30a2\u30c9\u30ec\u30b9\u4e00\u89a7\u30fbCSV\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/p>\n        <span id=\"cidr-iplist-toggle-arrow\">\u25bc<\/span>\n      <\/div>\n      <div class=\"cidr-iplist-body\" id=\"cidr-iplist-body\">\n        <p id=\"cidr-iplist-meta\">\u5bfe\u8c61\u30cd\u30c3\u30c8\u30ef\u30fc\u30af: \u2013<\/p>\n        <p id=\"cidr-iplist-warning\">\/16 \u3088\u308a\u5e83\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u30db\u30b9\u30c8\u6570\u304c\u591a\u3044\u5834\u5408\uff09\u306f\u4e00\u89a7\u751f\u6210\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001CSV\u306e\u307f\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n        <div>\n          <button class=\"cidr-btn-primary\" id=\"cidr-iplist-generate-btn\">\u4e00\u89a7\u3092\u751f\u6210\uff08\u6700\u5927 10,000 \u4ef6\u3092\u8868\u793a\uff09<\/button>\n          <button class=\"cidr-btn-primary\" id=\"cidr-iplist-csv-btn\">CSV\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/button>\n        <\/div>\n        <p class=\"cidr-error\" id=\"cidr-iplist-error\" style=\"display:none;\"><\/p>\n        <pre class=\"cidr-iplist-preview\" id=\"cidr-iplist-preview\">-<\/pre>\n        <p class=\"cidr-footer-note\">\u203b\u4e00\u89a7\u8868\u793a\u306f\u6700\u5927 10,000 \u4ef6\u307e\u3067\u3067\u3059\u3002CSV \u306f\u6700\u5927 1,000,000 \u884c\u307e\u3067\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>\u3053\u306e\u300cCIDR\u8a08\u7b97\u30c4\u30fc\u30eb\u300d\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff08CIDR\uff09\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u7bc9\u3084\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a\u306b\u5fc5\u8981\u306a\u60c5\u5831\u3092\u5373\u5ea7\u306b\u8a08\u7b97\u30fb\u8868\u793a\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-0\">\u3053\u306e\u30c4\u30fc\u30eb\u3067\u3067\u304d\u308b\u3053\u3068<\/h3>\n\n\n\n<p>\u4e3b\u306a\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IP\u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2\u306e\u8a08\u7b97<\/strong> CIDR\u8868\u8a18\uff08\u4f8b\uff1a\/24\uff09\u304b\u3089\u3001\u5b9f\u969b\u306b\u5229\u7528\u53ef\u80fd\u306aIP\u30a2\u30c9\u30ec\u30b9\u306e\u958b\u59cb\u3068\u7d42\u4e86\u306e\u7bc4\u56f2\u3001\u304a\u3088\u3073\u5229\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u6570\uff08\u500b\u6570\uff09\u3092\u7b97\u51fa\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u8abf\u6574<\/strong> \u30b9\u30e9\u30a4\u30c0\u30fc\u307e\u305f\u306f\u30d7\u30eb\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u3092\u4f7f\u3063\u3066\u3001\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u9577\uff08\/0\u301c\/32\uff09\u3092\u76f4\u611f\u7684\u306b\u5909\u66f4\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u898f\u6a21\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u8a73\u7d30\u30c7\u30fc\u30bf\u306e\u5909\u63db<\/strong> IP\u30a2\u30c9\u30ec\u30b9\u306e\u300c2\u9032\u6570\u8868\u8a18\u300d\u300c10\u9032\u6570\u8868\u8a18\u300d\u300c16\u9032\u6570\u8868\u8a18\u300d\u3092\u4e00\u62ec\u3067\u8868\u793a\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30da\u30b7\u30e3\u30ea\u30b9\u30c8\u8a66\u9a13\u306a\u3069\u306e\u5b66\u7fd2\u3084\u3001\u4f4e\u30ec\u30a4\u30e4\u30fc\u306e\u30c7\u30d0\u30c3\u30b0\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u6b63\u898f\u8868\u73fe\u306e\u81ea\u52d5\u751f\u6210<\/strong> \u6307\u5b9a\u3057\u305fCIDR\u7bc4\u56f2\u306b\u30de\u30c3\u30c1\u3059\u308b\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u3084WAF\u306e\u8a2d\u5b9a\u306a\u3069\u3067IP\u5236\u9650\u3092\u884c\u3046\u969b\u306b\u305d\u306e\u307e\u307e\u30b3\u30d4\u30fc\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>IP\u30a2\u30c9\u30ec\u30b9\u4e00\u89a7\u306e\u51fa\u529b<\/strong> \u5bfe\u8c61\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u3059\u3079\u3066\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u30ea\u30b9\u30c8\u5316\u3057\u3066\u8868\u793a\u3057\u307e\u3059\u3002CSV\u5f62\u5f0f\u3067\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3082\u53ef\u80fd\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u3053\u306e\u30c4\u30fc\u30eb\u3067\u53d6\u5f97\u3059\u308b\u60c5\u5831\u306e\u57fa\u790e\u77e5\u8b58<\/h3>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u3092\u884c\u3046\u4e0a\u3067\u983b\u51fa\u3059\u308b\u7528\u8a9e\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u30c4\u30fc\u30eb\u3067\u306f\u3053\u308c\u3089\u306e\u5024\u3092\u81ea\u52d5\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CIDR\uff08\u30b5\u30a4\u30c0\u30fc\uff09<\/strong> \u300cClassless Inter-Domain Routing\u300d\u306e\u7565\u3067\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u3092\u67d4\u8edf\u306b\u884c\u3046\u4ed5\u7d44\u307f\u3067\u3001\u300c192.168.1.0\/24\u300d\u306e\u3088\u3046\u306b\u300c\/\uff08\u30b9\u30e9\u30c3\u30b7\u30e5\uff09\u300d\u306e\u5f8c\u306b\u30d3\u30c3\u30c8\u6570\u3092\u8a18\u8ff0\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5927\u304d\u3055\u3092\u8868\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/strong> IP\u30a2\u30c9\u30ec\u30b9\u306e\u3046\u3061\u300c\u3069\u3053\u307e\u3067\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3001\u3069\u3053\u304b\u3089\u304c\u30db\u30b9\u30c8\u90e8\u304b\u300d\u3092\u5b9a\u7fa9\u3059\u308b\u6570\u5024\u3067\u3059\u3002\u300c\/24\u300d\u306f\u300c255.255.255.0\u300d\u3068\u540c\u3058\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong> \u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u81ea\u4f53\u3092\u8868\u3059\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u901a\u5e38\u3001\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u304c\u3059\u3079\u3066\u300c0\u300d\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u8a72\u5f53\u3057\u3001\u6a5f\u5668\u3078\u306e\u5272\u308a\u5f53\u3066\u306b\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong> \u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u6a5f\u5668\u306b\u4e00\u6589\u9001\u4fe1\u3092\u884c\u3046\u305f\u3081\u306e\u7279\u5225\u306a\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u304c\u3059\u3079\u3066\u300c1\u300d\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u8a72\u5f53\u3057\u3001\u901a\u5e38\u306f\u6a5f\u5668\u3078\u5272\u308a\u5f53\u3066\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>\u5229\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u6570<\/strong> \u5b9f\u969b\u306bPC\u3084\u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u6a5f\u5668\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308bIP\u30a2\u30c9\u30ec\u30b9\u306e\u7dcf\u6570\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306eIP\u6570\u304b\u3089\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306e2\u3064\u3092\u9664\u3044\u305f\u6570\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u3053\u306e\u30c4\u30fc\u30eb\u304c\u5f79\u7acb\u3064\u3068\u304d\u306f\u3069\u3093\u306a\u3068\u304d\uff1f \u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\uff1f<\/h3>\n\n\n\n<p><strong>1. \u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084VLAN\u306e\u8a2d\u8a08\u6642<\/strong> \u65b0\u898f\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u69cb\u7bc9\u3059\u308b\u969b\u3001\u5fc5\u8981\u306a\u30db\u30b9\u30c8\u6570\uff08\u63a5\u7d9a\u53f0\u6570\uff09\u306b\u5408\u308f\u305b\u3066\u6700\u9069\u306a\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff08\/24\u3001\/26\u306a\u3069\uff09\u3092\u8a08\u7b97\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u300c\u3053\u306e\u8a2d\u5b9a\u3067IP\u30a2\u30c9\u30ec\u30b9\u304c\u8db3\u308a\u308b\u304b\uff1f\u300d\u3092\u5373\u5ea7\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>2. \u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d0\u30fc\uff08AWS\u30fbAzure\u7b49\uff09\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a<\/strong> AWS\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u3084\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u3067\u3001\u7279\u5b9a\u306eIP\u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2\u306e\u307f\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3057\u305f\u3044\u5834\u5408\u3001\u6b63\u78ba\u306aCIDR\u8868\u8a18\u304c\u5fc5\u8981\u3067\u3059\u3002IP\u7bc4\u56f2\u306e\u30df\u30b9\u306b\u3088\u308b\u63a5\u7d9a\u30c8\u30e9\u30d6\u30eb\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>3. \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3067\u306e\u30a2\u30af\u30bb\u30b9\u5236\u9650<\/strong> Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084API\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u7279\u5b9a\u306eIP\u5e2f\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u306e\u307f\u3092\u8a31\u53ef\uff08\u307e\u305f\u306f\u62d2\u5426\uff09\u3059\u308b\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\u3059\u308b\u969b\u3001\u30c4\u30fc\u30eb\u304c\u51fa\u529b\u3059\u308b\u300c\u6b63\u898f\u8868\u73fe\u300d\u3092\u30b3\u30fc\u30c9\u306b\u8cbc\u308a\u4ed8\u3051\u308b\u3060\u3051\u3067\u5b9f\u88c5\u3092\u52b9\u7387\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>4. \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u8cc7\u683c\u306e\u5b66\u7fd2<\/strong> CCNA\u3084\u57fa\u672c\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306a\u3069\u3067\u51fa\u984c\u3055\u308c\u308b\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5316\u300d\u3084\u300c2\u9032\u6570\u5909\u63db\u300d\u306e\u52c9\u5f37\u306b\u304a\u3044\u3066\u3001\u81ea\u5206\u306e\u8a08\u7b97\u304c\u5408\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u7b54\u3048\u5408\u308f\u305b\u30c4\u30fc\u30eb\u3068\u3057\u3066\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">IP\u30a2\u30c9\u30ec\u30b9\u4e00\u89a7\u30ea\u30b9\u30c8\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u3053\u306e\u30c4\u30fc\u30eb\u306b\u306f\u3001\u6307\u5b9a\u3057\u305f\u7bc4\u56f2\u306b\u542b\u307e\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u5168\u4ef6\u51fa\u529b\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002 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