{"id":598,"date":"2023-09-20T16:32:53","date_gmt":"2023-09-20T08:32:53","guid":{"rendered":"http:\/\/madapapa.com\/wordpress\/?p=598"},"modified":"2023-11-03T18:00:57","modified_gmt":"2023-11-03T10:00:57","slug":"cidr-yu-zi-wang-yan-ma","status":"publish","type":"post","link":"http:\/\/madapapa.com\/wordpress\/?p=598","title":{"rendered":"CIDR\u4e0e\u5b50\u7f51\u63a9\u7801"},"content":{"rendered":"<h2><a id=\"cidr%E8%A1%A8%E7%A4%BA%E6%B3%95\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>CIDR\u8868\u793a\u6cd5<\/h2>\n<p>&quot;10.0.0.0\/26&quot; \u662f\u4f7f\u7528CIDR\uff08\u65e0\u7c7b\u522b\u57df\u95f4\u8def\u7531\/Classless Inter-Domain Routing\uff09\u8868\u793a\u6cd5\u6765\u8868\u793a\u4e00\u4e2aIP\u5730\u5740\u8303\u56f4\u7684\u65b9\u5f0f\u3002\u5728CIDR\u8868\u793a\u6cd5\u4e2d\uff0cIP\u5730\u5740\u8303\u56f4\u7531\u4e00\u4e2aIP\u5730\u5740\u540e\u8ddf\u4e00\u4e2a\u6b63\u659c\u6760\u548c\u4e00\u4e2a\u6570\u5b57\u7ec4\u6210\uff0c\u8be5\u6570\u5b57\u6307\u5b9a\u4e86\u7f51\u7edc\u524d\u7f00\u4e2d\u7684\u4f4d\u6570\u3002\u4e0b\u9762\u89e3\u91ca\u4e00\u4e0b &quot;10.0.0.0\/26&quot; \u7684\u542b\u4e49\uff1a<\/p>\n<p>IP\u5730\u5740\uff1a&quot;10.0.0.0&quot; \u662f\u8be5\u8303\u56f4\u7684\u57fa\u672cIP\u5730\u5740\u3002\u5b83\u662f\u5730\u5740\u8303\u56f4\u7684\u8d77\u70b9\u3002<\/p>\n<p>\/26\uff1a&quot;\/26&quot; \u8868\u793a\u5b50\u7f51\u63a9\u7801\u6216\u7f51\u7edc\u524d\u7f00\u4e2d\u7684\u4f4d\u6570\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u8868\u793aIP\u5730\u5740\u4e2d\u5de6\u8fb9\u768426\u4f4d\u7528\u4e8e\u8868\u793a\u7f51\u7edc\uff0c\u800c\u5269\u4e0b\u76846\u4f4d\u7528\u4e8e\u8868\u793a\u7f51\u7edc\u5185\u7684\u5404\u4e2a\u4e3b\u673a\u5730\u5740\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u66f4\u8be6\u7ec6\u5730\u89e3\u91ca &quot;10.0.0.0\/26&quot;\uff1a<\/p>\n<p>\u7f51\u7edc\u5730\u5740\uff1a&quot;10.0.0.0&quot; \u662f\u7f51\u7edc\u5730\u5740\uff0c\u8868\u793a\u6574\u4e2a\u7f51\u7edc\u6216\u5b50\u7f51\u3002<\/p>\n<p>\u53ef\u7528IP\u5730\u5740\uff1a\u5728\/26\u5b50\u7f51\u4e2d\uff0c\u67092^6 = 64\u4e2a\u53ef\u80fd\u7684IP\u5730\u5740\u3002\u7136\u800c\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u8303\u56f4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u548c\u6700\u540e\u4e00\u4e2a\u5730\u5740\u88ab\u4fdd\u7559\u7528\u4e8e\u7f51\u7edc\u6807\u8bc6\u548c\u5e7f\u64ad\uff0c\u56e0\u6b64\u5728\u7f51\u7edc\u5185\u670962\u4e2a\u53ef\u7528\u7684IP\u5730\u5740\u4f9b\u4e3b\u673a\u4f7f\u7528\u3002<\/p>\n<p>\u53ef\u7528IP\u5730\u5740\u8303\u56f4\uff1a&quot;10.0.0.1&quot; \u5230 &quot;10.0.0.62&quot;<br \/>\n\u5b50\u7f51\u63a9\u7801\uff1a\u4e0e&quot;\/26&quot;\u76f8\u5173\u8054\u7684\u5b50\u7f51\u63a9\u7801\u4ee5\u6807\u51c6\u70b9\u5206\u5341\u8fdb\u5236\u683c\u5f0f\u8868\u793a\u4e3a &quot;255.255.255.192&quot;\u3002\u4ee5\u4e8c\u8fdb\u5236\u8868\u793a\uff0c\u5b83\u662f &quot;11111111.11111111.11111111.11000000&quot;\uff0c\u5176\u4e2d\u524d26\u4f4d\u88ab\u8bbe\u7f6e\u4e3a &quot;1&quot; \u4ee5\u8868\u793a\u7f51\u7edc\u90e8\u5206\uff0c\u540e6\u4f4d\u88ab\u8bbe\u7f6e\u4e3a &quot;0&quot; \u4ee5\u8868\u793a\u4e3b\u673a\u5730\u5740\u3002<\/p>\n<p>\u603b\u4e4b\uff0c&quot;10.0.0.0\/26&quot; \u5b9a\u4e49\u4e86\u4e00\u4e2a\u5177\u670964\u4e2aIP\u5730\u5740\u7684\u5b50\u7f51\u8303\u56f4\uff0c\u4ece &quot;10.0.0.1&quot; \u5230 &quot;10.0.0.62&quot;\u3002\u8fd9\u901a\u5e38\u7528\u4e8e\u4e3a\u7f51\u7edc\u6bb5\u5185\u7684\u8bbe\u5907\u6216\u4e3b\u673a\u5206\u914dIP\u5730\u5740\uff0c\u540c\u65f6\u4fdd\u7559\u4e86\u7f51\u7edc\u548c\u5e7f\u64ad\u5730\u5740\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/madapapa.com\/wordpress\/wp-content\/uploads\/2023\/09\/16951988821048.jpg\" alt=\"\" \/><\/p>\n<h2><a id=\"%E5%AD%90%E7%BD%91%E6%8E%A9%E7%A0%81%E3%80%81%E7%BD%91%E7%BB%9C%E5%9C%B0%E5%9D%80%E8%8C%83%E5%9B%B4%E5%92%8Ccidr\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u5b50\u7f51\u63a9\u7801\u3001\u7f51\u7edc\u5730\u5740\u8303\u56f4\u548cCIDR<\/h2>\n<p>\u5b50\u7f51\u63a9\u7801\u3001\u7f51\u7edc\u5730\u5740\u8303\u56f4\u548cCIDR\uff08Classless Inter-Domain Routing\uff09\u4e4b\u95f4\u6709\u5bc6\u5207\u7684\u5173\u7cfb\uff0c\u5b83\u4eec\u90fd\u7528\u4e8e\u5b9a\u4e49\u548c\u63cf\u8ff0\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u7684\u5b50\u7f51\u548c\u7f51\u7edc\u5206\u5272\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u5b50\u7f51\u63a9\u7801\uff08Subnet Mask\uff09<\/strong>\uff1a<\/p>\n<ul>\n<li>\u5b50\u7f51\u63a9\u7801\u662f\u4e00\u4e2a32\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\uff0c\u7528\u4e8e\u5212\u5206IP\u5730\u5740\u4e2d\u7684\u7f51\u7edc\u90e8\u5206\u548c\u4e3b\u673a\u90e8\u5206\u3002\u5b83\u7531\u8fde\u7eed\u76841\u4f4d\uff08\u7f51\u7edc\u4f4d\uff09\u548c\u8fde\u7eed\u76840\u4f4d\uff08\u4e3b\u673a\u4f4d\uff09\u7ec4\u6210\u3002<\/li>\n<li>\u5b50\u7f51\u63a9\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2aIP\u5730\u5740\u7684\u54ea\u90e8\u5206\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u54ea\u90e8\u5206\u7528\u4e8e\u4e3b\u673a\u5730\u5740\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u5b50\u7f51\u63a9\u7801 <code>255.255.255.0<\/code> \u8868\u793a\u524d24\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u540e8\u4f4d\u7528\u4e8e\u4e3b\u673a\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u7f51\u7edc\u5730\u5740\u8303\u56f4<\/strong>\uff1a<\/p>\n<ul>\n<li>\u7f51\u7edc\u5730\u5740\u8303\u56f4\u6307\u7684\u662f\u7279\u5b9a\u5b50\u7f51\u7684IP\u5730\u5740\u8303\u56f4\uff0c\u5176\u4e2d\u5305\u62ec\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u4ee5\u53ca\u53ef\u5206\u914d\u7684\u4e3b\u673a\u5730\u5740\u3002<\/li>\n<li>\u7f51\u7edc\u5730\u5740\u662f\u5b50\u7f51\u4e2d\u7684\u7b2c\u4e00\u4e2aIP\u5730\u5740\uff0c\u901a\u5e38\u662f\u6240\u6709\u4e3b\u673a\u4f4d\u90fd\u4e3a0\u3002\u5e7f\u64ad\u5730\u5740\u662f\u5b50\u7f51\u4e2d\u7684\u6700\u540e\u4e00\u4e2aIP\u5730\u5740\uff0c\u901a\u5e38\u662f\u6240\u6709\u4e3b\u673a\u4f4d\u90fd\u4e3a1\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u5bf9\u4e8e\u5b50\u7f51\u63a9\u7801 <code>255.255.255.0<\/code>\uff0c\u7f51\u7edc\u5730\u5740\u8303\u56f4\u53ef\u4ee5\u662f <code>192.168.1.0<\/code> \u5230 <code>192.168.1.255<\/code>\u3002\u540c\u6837\u7684\uff0c\u7f51\u7edc\u5730\u5740\u8303\u56f4\u4e5f\u53ef\u4ee5\u662f&#8217;172.1.1.0&#8242; &#8216;172.1.1.255&#8217;<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>CIDR\uff08Classless Inter-Domain Routing\uff09<\/strong>\uff1a<\/p>\n<ul>\n<li>CIDR\u662f\u4e00\u79cd\u8868\u793aIP\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801\u7684\u6807\u51c6\u65b9\u6cd5\uff0c\u4ee5\u4fbf\u66f4\u7cbe\u786e\u5730\u63cf\u8ff0\u7f51\u7edc\u7684\u5b50\u7f51\u5212\u5206\u3002<\/li>\n<li>CIDR\u8868\u793a\u6cd5\u5305\u62ecIP\u5730\u5740\uff0c\u540e\u8ddf\u659c\u6760\u548c\u7f51\u7edc\u524d\u7f00\u957f\u5ea6\u3002\u7f51\u7edc\u524d\u7f00\u957f\u5ea6\u6307\u5b9a\u4e86\u7f51\u7edc\u4f4d\u7684\u6570\u91cf\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5177\u4f53\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/li>\n<li>\u4f8b\u5982\uff0cCIDR\u8868\u793a\u6cd5 <code>192.168.1.0\/24<\/code> \u8868\u793a\u7f51\u7edc\u524d\u7f00\u957f\u5ea6\u4e3a24\u4f4d\uff0c\u5373\u524d24\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u540e8\u4f4d\u7528\u4e8e\u4e3b\u673a\u5730\u5740(32-24=8,2^8=256)\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u5173\u7cfb\uff1a<\/p>\n<ul>\n<li>\u5b50\u7f51\u63a9\u7801\u7528\u4e8e\u660e\u786e\u6307\u5b9aIP\u5730\u5740\u7684\u54ea\u4e9b\u4f4d\u662f\u7f51\u7edc\u4f4d\u548c\u54ea\u4e9b\u4f4d\u662f\u4e3b\u673a\u4f4d\u3002<\/li>\n<li>\u7f51\u7edc\u5730\u5740\u8303\u56f4\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5b50\u7f51\u7684IP\u5730\u5740\u8303\u56f4\uff0c\u5305\u62ec\u7f51\u7edc\u5730\u5740\u3001\u5e7f\u64ad\u5730\u5740\u548c\u53ef\u5206\u914d\u7684\u4e3b\u673a\u5730\u5740\u3002<\/li>\n<li>CIDR\u8868\u793a\u6cd5\u5219\u662f\u4e00\u79cd\u66f4\u7075\u6d3b\u548c\u7cbe\u786e\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528\u7f51\u7edc\u524d\u7f00\u957f\u5ea6\u6765\u8868\u793a\u7f51\u7edc\u4f4d\u7684\u6570\u91cf\uff0c\u800c\u4e0d\u662f\u5177\u4f53\u7684\u5b50\u7f51\u63a9\u7801\u3002CIDR\u8868\u793a\u6cd5\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u7528\u4e8e\u63cf\u8ff0\u5404\u79cd\u4e0d\u540c\u5927\u5c0f\u7684\u5b50\u7f51\uff0c\u800c\u65e0\u9700\u4f7f\u7528\u4e0d\u540c\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/li>\n<\/ul>\n<h2><a id=\"%E4%B8%BE%E4%B8%80%E4%B8%AA%E4%BE%8B%E5%AD%90%EF%BC%88%E5%9C%A8%E5%AD%90%E7%BD%91%E6%8E%A9%E7%A0%81%E4%B8%BA255-255-240-0%E6%97%B6%EF%BC%8C%E5%9F%BA%E7%A1%80%E7%BD%91%E7%BB%9C%E5%9C%B0%E5%9D%80%E4%B8%BA172-19-224-0%EF%BC%89\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u4e3e\u4e00\u4e2a\u4f8b\u5b50\uff08\u5728\u5b50\u7f51\u63a9\u7801\u4e3a255.255.240.0\u65f6\uff0c\u57fa\u7840\u7f51\u7edc\u5730\u5740\u4e3a172.19.224.0\uff09<\/h2>\n<p>\u5f53\u4f7f\u7528CIDR\uff08Classless Inter-Domain Routing\uff09\u8868\u793a\u6cd5\u65f6\uff0cIP\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801\u7ed3\u5408\u5728\u4e00\u8d77\uff0c\u4ee5\u4e00\u79cd\u66f4\u7cbe\u786e\u548c\u7d27\u51d1\u7684\u65b9\u5f0f\u6765\u8868\u793a\u7f51\u7edc\u7684\u5b50\u7f51\u5212\u5206\u3002\u8ba9\u6211\u8be6\u7ec6\u89e3\u91ca\u4e3a\u4ec0\u4e48\u5b50\u7f51\u63a9\u7801 <code>255.255.240.0<\/code> \u53ef\u4ee5\u7528CIDR\u8868\u793a\u6cd5\u8868\u793a\u4e3a <code>172.19.224.0\/20<\/code>\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u5b50\u7f51\u63a9\u7801 <code>255.255.240.0<\/code> \u7684\u4e8c\u8fdb\u5236\u8868\u793a<\/strong>\uff1a<\/p>\n<ul>\n<li>\u5b50\u7f51\u63a9\u7801 <code>255.255.240.0<\/code> \u5728\u4e8c\u8fdb\u5236\u4e2d\u662f <code>11111111.11111111.11110000.00000000<\/code>\u3002<\/li>\n<li>\u8fd9\u8868\u793a\u524d20\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u540e12\u4f4d\u7528\u4e8e\u4e3b\u673a\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>IP\u5730\u5740 <code>172.19.224.0<\/code> \u7684\u4e8c\u8fdb\u5236\u8868\u793a<\/strong>\uff1a<\/p>\n<ul>\n<li>IP\u5730\u5740 <code>172.19.224.0<\/code> \u5728\u4e8c\u8fdb\u5236\u4e2d\u662f <code>10101100.00010011.11100000.00000000<\/code>\u3002<\/li>\n<li>\u8fd9\u662f\u7f51\u7edc\u5730\u5740\u90e8\u5206\uff0c\u8fd9\u65f6\u5019\u5982\u679c\u8003\u8651\u4e0a\u9762\u7684\u5b50\u7f51\u63a9\u7801\u7684\u89c4\u5b9a\uff0c\u5219\u53ea\u670912\u4f4d\u4f5c\u4e3a\u4e3b\u673a\u5730\u5740\uff0c\u4e5f\u5c31\u662f\u4ece0000.00000000\u5f00\u59cb\u7684\u5730\u5740\uff0c\u4e5f\u5c31\u662f\u5728c\u7f51\u6bb5\u53ea\u6709224\uff5e240\u53ef\u4ee5\u4f5c\u4e3a\u4e3b\u673a\u7f51\u6bb5\uff0c\u56e0\u4e3a241\u662f11110001\uff0c\u5df2\u7ecf\u65e0\u6cd5\u4f5c\u4e3a\u7f51\u6bb5\u4e86\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>CIDR\u8868\u793a\u6cd5\u7684\u7f51\u7edc\u524d\u7f00\u957f\u5ea6<\/strong>\uff1a<\/p>\n<ul>\n<li>\u4e3a\u4e86\u4f7f\u7528CIDR\u8868\u793a\u6cd5\uff0c\u6211\u4eec\u9700\u8981\u786e\u5b9a\u7f51\u7edc\u4f4d\u7684\u6570\u91cf\uff0c\u5373\u524d\u9762\u6709\u591a\u5c11\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\u3002<\/li>\n<li>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6709\u524d20\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>CIDR\u8868\u793a\u6cd5\u7684\u683c\u5f0f<\/strong>\uff1a<\/p>\n<ul>\n<li>CIDR\u8868\u793a\u6cd5\u5305\u62ecIP\u5730\u5740\uff0c\u540e\u8ddf\u659c\u6760\u548c\u7f51\u7edc\u524d\u7f00\u957f\u5ea6\uff0c\u4f8b\u5982 <code>IP\u5730\u5740\/\u7f51\u7edc\u524d\u7f00\u957f\u5ea6<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>CIDR\u8868\u793a\u6cd5\u7684\u7ec4\u5408<\/strong>\uff1a<\/p>\n<ul>\n<li>\u5c06\u4e0a\u8ff0\u7684\u7f51\u7edc\u5730\u5740 <code>172.19.224.0<\/code> \u4e0e\u7f51\u7edc\u524d\u7f00\u957f\u5ea6 <code>20<\/code> \u7ec4\u5408\u5728\u4e00\u8d77\uff0c\u5373 <code>172.19.224.0\/20<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cCIDR\u8868\u793a\u6cd5 <code>172.19.224.0\/20<\/code> \u8868\u793a\u7f51\u7edc\u5730\u5740 <code>172.19.224.0<\/code> \u548c\u5b50\u7f51\u63a9\u7801 <code>255.255.240.0<\/code> \u7ed3\u5408\u5728\u4e00\u8d77\uff0c\u6307\u5b9a\u4e86\u7f51\u7edc\u5730\u5740\u7684\u524d20\u4f4d\u662f\u7f51\u7edc\u4f4d\uff0c\u540e12\u4f4d\u662f\u4e3b\u673a\u4f4d\u3002\u8fd9\u4f7f\u5f97CIDR\u8868\u793a\u6cd5\u6210\u4e3a\u4e00\u79cd\u66f4\u7075\u6d3b\u3001\u7d27\u51d1\u548c\u7cbe\u786e\u7684\u65b9\u5f0f\uff0c\u7528\u4e8e\u63cf\u8ff0\u7f51\u7edc\u7684\u5b50\u7f51\u5212\u5206\uff0c\u800c\u65e0\u9700\u4f7f\u7528\u7279\u5b9a\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CIDR\u8868\u793a\u6cd5 &quot;10.0.0.0\/26&quot; \u662f\u4f7f\u7528CIDR\uff08\u65e0\u7c7b\u522b\u57df\u95f4\u8def\u7531\/Classless Inter-Domain Routing\uff09\u8868\u793a\u6cd5\u6765\u8868\u793a\u4e00\u4e2aIP\u5730\u5740\u8303\u56f4\u7684\u65b9\u5f0f\u3002\u5728CIDR\u8868\u793a\u6cd5\u4e2d\uff0cIP\u5730\u5740\u8303\u56f4\u7531\u4e00\u4e2aIP\u5730\u5740\u540e\u8ddf\u4e00\u4e2a\u6b63\u659c\u6760\u548c\u4e00\u4e2a\u6570\u5b57\u7ec4\u6210\uff0c\u8be5\u6570\u5b57\u6307\u5b9a\u4e86\u7f51\u7edc\u524d\u7f00\u4e2d\u7684\u4f4d\u6570\u3002\u4e0b\u9762\u89e3\u91ca\u4e00\u4e0b &quot;10.0.0.0\/26&quot; \u7684\u542b\u4e49\uff1a IP\u5730\u5740\uff1a&quot;10.0.0.0&quot; \u662f\u8be5\u8303\u56f4\u7684\u57fa\u672cIP\u5730\u5740\u3002\u5b83\u662f\u5730\u5740\u8303\u56f4\u7684\u8d77\u70b9\u3002 \/26\uff1a&quot;\/26&quot; \u8868\u793a\u5b50\u7f51\u63a9\u7801\u6216\u7f51\u7edc\u524d\u7f00\u4e2d\u7684\u4f4d\u6570\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u8868\u793aIP\u5730\u5740\u4e2d\u5de6\u8fb9\u768426\u4f4d\u7528\u4e8e\u8868\u793a\u7f51\u7edc\uff0c\u800c\u5269\u4e0b\u76846\u4f4d\u7528\u4e8e\u8868\u793a\u7f51\u7edc\u5185\u7684\u5404\u4e2a\u4e3b\u673a\u5730\u5740\u3002 \u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u66f4\u8be6\u7ec6\u5730\u89e3\u91ca &quot;10.0.0.0\/26&quot;\uff1a \u7f51\u7edc\u5730\u5740\uff1a&quot;10.0.0.0&quot; \u662f\u7f51\u7edc\u5730\u5740\uff0c\u8868\u793a\u6574\u4e2a\u7f51\u7edc\u6216\u5b50\u7f51\u3002 \u53ef\u7528IP\u5730\u5740\uff1a\u5728\/26\u5b50\u7f51\u4e2d\uff0c\u67092^6 = 64\u4e2a\u53ef\u80fd\u7684IP\u5730\u5740\u3002\u7136\u800c\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u8303\u56f4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u548c\u6700\u540e\u4e00\u4e2a\u5730\u5740\u88ab\u4fdd\u7559\u7528\u4e8e\u7f51\u7edc\u6807\u8bc6\u548c\u5e7f\u64ad\uff0c\u56e0\u6b64\u5728\u7f51\u7edc\u5185\u670962\u4e2a\u53ef\u7528\u7684IP\u5730\u5740\u4f9b\u4e3b\u673a\u4f7f\u7528\u3002 \u53ef\u7528IP\u5730\u5740\u8303\u56f4\uff1a&quot;10.0.0.1&quot; \u5230 &quot;10.0.0.62&quot; \u5b50\u7f51\u63a9\u7801\uff1a\u4e0e&quot;\/26&quot;\u76f8\u5173\u8054\u7684\u5b50\u7f51\u63a9\u7801\u4ee5\u6807\u51c6\u70b9\u5206\u5341\u8fdb\u5236\u683c\u5f0f\u8868\u793a\u4e3a &quot;255.255.255.192&quot;\u3002\u4ee5\u4e8c\u8fdb\u5236\u8868\u793a\uff0c\u5b83\u662f &quot;11111111.11111111.11111111.11000000&quot;\uff0c\u5176\u4e2d\u524d26\u4f4d\u88ab\u8bbe\u7f6e\u4e3a &quot;1&quot; \u4ee5\u8868\u793a\u7f51\u7edc\u90e8\u5206\uff0c\u540e6\u4f4d\u88ab\u8bbe\u7f6e\u4e3a &quot;0&quot; \u4ee5\u8868\u793a\u4e3b\u673a\u5730\u5740\u3002 \u603b\u4e4b\uff0c&quot;10.0.0.0\/26&quot; \u5b9a\u4e49\u4e86\u4e00\u4e2a\u5177\u670964\u4e2aIP\u5730\u5740\u7684\u5b50\u7f51\u8303\u56f4\uff0c\u4ece &quot;10.0.0.1&quot; \u5230 &quot;10.0.0.62&quot;\u3002\u8fd9\u901a\u5e38\u7528\u4e8e\u4e3a\u7f51\u7edc\u6bb5\u5185\u7684\u8bbe\u5907\u6216\u4e3b\u673a\u5206\u914dIP\u5730\u5740\uff0c\u540c\u65f6\u4fdd\u7559\u4e86\u7f51\u7edc\u548c\u5e7f\u64ad\u5730\u5740\u3002 \u5b50\u7f51\u63a9\u7801\u3001\u7f51\u7edc\u5730\u5740\u8303\u56f4\u548cCIDR \u5b50\u7f51\u63a9\u7801\u3001\u7f51\u7edc\u5730\u5740\u8303\u56f4\u548cCIDR\uff08Classless Inter-Domain Routing\uff09\u4e4b\u95f4\u6709\u5bc6\u5207\u7684\u5173\u7cfb\uff0c\u5b83\u4eec\u90fd\u7528\u4e8e\u5b9a\u4e49\u548c\u63cf\u8ff0\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u7684\u5b50\u7f51\u548c\u7f51\u7edc\u5206\u5272\u3002 \u5b50\u7f51\u63a9\u7801\uff08Subnet Mask\uff09\uff1a \u5b50\u7f51\u63a9\u7801\u662f\u4e00\u4e2a32\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\uff0c\u7528\u4e8e\u5212\u5206IP\u5730\u5740\u4e2d\u7684\u7f51\u7edc\u90e8\u5206\u548c\u4e3b\u673a\u90e8\u5206\u3002\u5b83\u7531\u8fde\u7eed\u76841\u4f4d\uff08\u7f51\u7edc\u4f4d\uff09\u548c\u8fde\u7eed\u76840\u4f4d\uff08\u4e3b\u673a\u4f4d\uff09\u7ec4\u6210\u3002 \u5b50\u7f51\u63a9\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2aIP\u5730\u5740\u7684\u54ea\u90e8\u5206\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u54ea\u90e8\u5206\u7528\u4e8e\u4e3b\u673a\u5730\u5740\u3002 \u4f8b\u5982\uff0c\u5b50\u7f51\u63a9\u7801 255.255.255.0 \u8868\u793a\u524d24\u4f4d\u7528\u4e8e\u7f51\u7edc\u5730\u5740\uff0c\u540e8\u4f4d\u7528\u4e8e\u4e3b\u673a\u5730\u5740\u3002 \u7f51\u7edc\u5730\u5740\u8303\u56f4\uff1a \u7f51\u7edc\u5730\u5740\u8303\u56f4\u6307\u7684\u662f\u7279\u5b9a\u5b50\u7f51\u7684IP\u5730\u5740\u8303\u56f4\uff0c\u5176\u4e2d\u5305\u62ec\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u4ee5\u53ca\u53ef\u5206\u914d\u7684\u4e3b\u673a\u5730\u5740\u3002 \u7f51\u7edc\u5730\u5740\u662f\u5b50\u7f51\u4e2d\u7684\u7b2c\u4e00\u4e2aIP\u5730\u5740\uff0c\u901a\u5e38\u662f\u6240\u6709\u4e3b\u673a\u4f4d\u90fd\u4e3a0\u3002\u5e7f\u64ad\u5730\u5740\u662f\u5b50\u7f51\u4e2d\u7684\u6700\u540e\u4e00\u4e2aIP\u5730\u5740\uff0c\u901a\u5e38\u662f\u6240\u6709\u4e3b\u673a\u4f4d\u90fd\u4e3a1\u3002 \u4f8b\u5982\uff0c\u5bf9\u4e8e\u5b50\u7f51\u63a9\u7801 255.255.255.0\uff0c\u7f51\u7edc\u5730\u5740\u8303\u56f4\u53ef\u4ee5\u662f 192.168.1.0 \u5230 192.168.1.255\u3002\u540c\u6837\u7684\uff0c\u7f51\u7edc\u5730\u5740\u8303\u56f4\u4e5f\u53ef\u4ee5\u662f&#8217;172.1.1.0&#8242; &#8216;172.1.1.255&#8217; CIDR\uff08Classless Inter-Domain &hellip; <a href=\"http:\/\/madapapa.com\/wordpress\/?p=598\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">CIDR\u4e0e\u5b50\u7f51\u63a9\u7801<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=598"}],"version-history":[{"count":2,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598\/revisions"}],"predecessor-version":[{"id":632,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/598\/revisions\/632"}],"wp:attachment":[{"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=598"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/madapapa.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}