{"id":107645,"date":"2020-05-29T02:41:23","date_gmt":"2020-05-28T18:41:23","guid":{"rendered":"http:\/\/4563.org\/?p=107645"},"modified":"2020-05-29T02:41:23","modified_gmt":"2020-05-28T18:41:23","slug":"%e6%9c%89%e6%b2%a1%e6%9c%89%e4%bb%80%e4%b9%88%e7%ae%80%e5%8d%95%e3%80%81%e6%80%a7%e8%83%bd%e4%b9%9f%e8%bf%98%e8%bf%87%e5%be%97%e5%8e%bb%e7%9a%84-%e5%8c%b9%e9%85%8d-cidr-%e9%9b%86%e5%90%88%ef%bc%88","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=107645","title":{"rendered":"\u6709\u6ca1\u6709\u4ec0\u4e48\u7b80\u5355\u3001\u6027\u80fd\u4e5f\u8fd8\u8fc7\u5f97\u53bb\u7684 \u5339\u914d CIDR \u96c6\u5408\uff08\u5305\u542b IPv6 \u7684 CIDR\uff09\u7684\u7b97\u6cd5\u63a8\u8350\uff1f"},"content":{"rendered":"
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\u6709\u6ca1\u6709\u4ec0\u4e48\u7b80\u5355\u3001\u6027\u80fd\u4e5f\u8fd8\u8fc7\u5f97\u53bb\u7684 \u5339\u914d CIDR \u96c6\u5408\uff08\u5305\u542b IPv6 \u7684 CIDR\uff09\u7684\u7b97\u6cd5\u63a8\u8350\uff1f <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : monsoon <\/span> <\/i> 2<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u9700\u6c42\u5f88\u7b80\u5355\u7684\uff0c\u5c31\u662f\u6709\u4e00\u4e2a 1W \u4e2a\u5de6\u53f3\u7684 CIDR \u96c6\u5408\uff08\u5305\u62ec IP \u3001CIDR \uff09\uff0c\u60f3\u5339\u914d\u4e00\u4e2a IP \u5728\u4e0d\u5728\u8fd9\u91cc\u9762\u3002\u5bbf\u4e3b\u8bed\u8a00\u662f Java \u4e4b\u7c7b\u4e0d\u76f4\u63a5\u64cd\u4f5c\u6307\u9488\u7684\u8bed\u8a00\u3002\u8f93\u5165\u7ed3\u679c\u662f\u4e00\u4e2a true \u6216\u8005 false \u5c31\u53ef\u4ee5\u4e86\u3002 \u73b0\u5728\u6211\u53ea\u4f1a loop \u7684\u65b9\u6cd5\u548c binary trie\u2026\u2026 IPv6 \u548c IPv4 \u6211\u4f1a\u5206\u6210\u4e24\u4e2a\u96c6\u5408\u5206\u5f00\u6765\u5339\u914d\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

\u627e\u4e86\u4e00\u4e0b\u8bba\u6587\uff0c\u611f\u89c9\u6709\u5f88\u591a\u7684 Longest prefix match \u7684\u7b97\u6cd5\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u54ea\u4e2a\u6539\u8d77\u6765\u5408\u9002\u2026\u2026\u5199\u8d77\u6765\u7b80\u5355\uff0c\u6027\u80fd\u4e5f\u8fd8\u53ef\u4ee5\uff0c\u5185\u5b58\u5360\u7528\u4e5f\u4e0d\u592a\u3002<\/p>\n

\u5927\u5bb6\u6709\u6ca1\u6709\u4ec0\u4e48\u63a8\u8350\u7684\u7b97\u6cd5\uff0c\u4e0d\u8981\u90a3\u79cd\u8981 128 \u6b21\u5339\u914d\uff08\u5bf9\u4e8e IPv6 \uff09\u7684\u90a3\u79cd\u3002\u5148\u8c22\u8c22\u4e86\u3002<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (3<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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  • \n
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    \u8cc7\u6df1\u5927\u4f6c : rrfeng <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    cidr \uff1f\u8981\u60f3\u5feb\u76f4\u63a5\u53d8\u6570\u503c\uff0c\u7136\u540e\u7b97\u51fa\u8fb9\u754c\u6765\u76f4\u63a5\u6bd4\u5927\u5c0f\u554a\u2026\u2026\u7b80\u5355\u5199\u4e2a\u4e8c\u5206\u67e5\u627e\u5c31\u4e0d\u4f1a\u5f88\u5dee\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : iRiven <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7edf\u7edf\u8f6c\u6210 u128\uff0c\u7136\u540e\u6392\u5e8f \u4e8c\u5206\u67e5\u627e\uff0c\u6700\u5feb <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : monsoon <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u975e\u5e38\u611f\u8c22\u4e0a\u4e24\u4f4d\uff0c\u8f6c\u6362\u6210\u4e86\u4e00\u4e2a pair \uff08\u8868\u793a range \uff09 \u7684 list\uff0c\u4e8c\u5206\u6cd5\u975e\u5e38\u597d\u5199\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u6709\u6ca1\u6709\u4ec0\u4e48\u7b80\u5355\u3001\u6027\u80fd\u4e5f\u8fd8\u8fc7\u5f97\u53bb\u7684 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/107645"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=107645"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/107645\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=107645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=107645"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=107645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}