{"id":10810,"date":"2024-05-03T12:30:01","date_gmt":"2024-05-03T04:30:01","guid":{"rendered":"https:\/\/egonlin.com\/?p=10810"},"modified":"2024-05-03T13:42:07","modified_gmt":"2024-05-03T05:42:07","slug":"k8s-pod-ip%e5%9c%b0%e5%9d%80%e8%a7%84%e5%88%92%ef%bc%88cidr%ef%bc%89","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=10810","title":{"rendered":"k8s Pod IP\u5730\u5740\u89c4\u5212\uff08CIDR\uff09"},"content":{"rendered":"<p id=\"seo-faq-pairs#what-is-cidr\" class=\"lb-txt-bold lb-txt-none lb-txt-28 lb-h2 lb-title\"><div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>CIDR\u4ecb\u7ecd<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p>\u7f51\u7edc\u8bbe\u5907\u901a\u4fe1\u9700\u8981\u6709IP\u5730\u5740\uff0c\u5728\u65e0\u7c7b\u522b\u57df\u95f4\u8def\u7531 (CIDR) \u51fa\u73b0\u4e4b\u524d\uff0cIP \u5730\u5740\u662f\u6709\u7c7b\u7684\uff0c\u5e76\u4e14\u6548\u7387\u4f4e\u4e0b<\/p>\n<div class=\"lb-none-v-margin lb-grid lb-small-pad lb-grid\" data-eb-item-id=\"seo-faq-pairs#what-is-cidr\">\n<div class=\"lb-row lb-row-max-large lb-snap\">\n<div class=\"lb-col lb-tiny-24 lb-mid-24\">\n<div class=\"lb-txt-14 lb-rtxt\">\n<pre class=\"code\">\u5728\u65e9\u671f\u7684\u4e92\u8054\u7f51\u4e2d\uff0c\uff0cIP\u5730\u5740\u88ab\u5206\u6210\u4e86A\u7c7b\u3001B\u7c7b\u3001C\u7c7b\u4e09\u5927\u7c7b\uff0c\u79f0\u4e4b\u4e3a<span style=\"background-color: #ff0000;\">\u6709\u7c7b\u522b<\/span>\uff0c\u5b50\u7f51\u63a9\u7801\u957f\u5ea6\u90fd\u662f\u56fa\u5b9a\u6b7b\u7684\uff0c\r\n\r\n\u8fd9\u79cdip\u5730\u5740\u7684\u5206\u914d\u65b9\u5f0f\u95ee\u9898\u662f\r\n<span style=\"background-color: #ff0000;\">1\u3001IP\u5730\u5740\u6d6a\u8d39\uff1a\u7531\u4e8e\u4e00\u4e2a\u7f51\u6bb5\u4e2d\u5305\u542b\u7684ip\u5730\u5740\u8fc7\u591a\uff0c\u6839\u672c\u7528\u4e0d\u5b8c\uff0c\u5bfc\u81f4IP\u5730\u5740\u5b58\u5728\u4e25\u91cd\u7684\u6d6a\u8d39<\/span>\r\n\u5728\u6709\u7c7b\u5bfb\u5740\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u7c7b\u90fd\u652f\u6301\u56fa\u5b9a\u6570\u91cf\u7684\u8bbe\u5907\uff1a\r\n        A \u7c7b\u652f\u6301 16777214 \u53f0\u4e3b\u673a\r\n        B \u7c7b\u652f\u6301 65534 \u53f0\u4e3b\u673a\r\n        C \u7c7b\u652f\u6301 254 \u53f0\u4e3b\u673a\r\n\u5728\u5206\u914d IP \u5730\u5740\u65f6\uff0c\u6709\u7c7b\u5b89\u6392\u6548\u7387\u4f4e\u4e0b\uff0c\u5e76\u4f1a\u5bfc\u81f4 IP \u5730\u5740\u7a7a\u95f4\u7684\u6d6a\u8d39\u3002\r\n\u4f8b\u5982\uff0c\u62e5\u6709 300 \u53f0\u8bbe\u5907\u7684\u7ec4\u7ec7\u65e0\u6cd5\u4f7f\u7528 C \u7c7b IP \u5730\u5740\uff0c\u8be5\u7c7b\u53ea\u5141\u8bb8\u8fde\u63a5 254 \u53f0\u8bbe\u5907\u3002\u56e0\u6b64\uff0c\u8be5\u7ec4\u7ec7\u4e0d\u5f97\u4e0d\u7533\u8bf7 B \u7c7b IP \u5730\u5740\uff0c\u8be5\u7c7b\u63d0\u4f9b 65534 \u4e2a\u552f\u4e00\u7684\u4e3b\u673a\u5730\u5740\u3002\r\n\u4f46\u662f\uff0c\u53ea\u9700\u8981\u8fde\u63a5 300 \u53f0\u8bbe\u5907\uff0c\u8fd9\u5c31\u4f1a\u5269\u4e0b 65234 \u4e2a\u672a\u4f7f\u7528\u7684 IP \u5730\u5740\u7a7a\u95f4\u3002\r\n\r\n\r\n<span style=\"background-color: #ff0000;\">2\u3001\u7f51\u7edc\u8bbe\u8ba1\u5c40\u9650\u6027\u5927\uff1a\u7531\u4e8e\u6bcf\u4e2a\u5b50\u7f51\u7684\u5730\u5740\u6570\u91cf\u592a\u591a\uff0c\u65e0\u6cd5\u7075\u6d3b\u7684\u8fdb\u884c\u7f51\u7edc\u89c4\u5212\uff0c\u5e76\u4e14\u8def\u7531\u8868\u9879\u8fc7\u591a<\/span>\r\n\u6709\u7c7b IP \u9650\u5236\u4e86\u60a8\u6839\u636e\u9700\u8981\u5408\u5e76\u7f51\u7edc\u7684\u80fd\u529b\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b IP \u5730\u5740\u5c5e\u4e8e\u6709\u7c7b\u67b6\u6784\u4e2d\u7684\u4e0d\u540c C \u7c7b\u7f51\u7edc\uff1a\r\n        192.168.1.0\r\n        192.168.0.0\r\n\u4f5c\u4e3a\u7f51\u7edc\u7ba1\u7406\u5458\uff0c\u60a8\u65e0\u6cd5\u5408\u5e76\u4e24\u4e2a\u7f51\u7edc\uff0c\u56e0\u4e3a C \u7c7b\u5b50\u7f51\u63a9\u7801\u56fa\u5b9a\u4e3a 255.255.255.0\u3002<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"lb-none-v-margin lb-grid lb-small-pad eb-bg-dark\" data-eb-item-id=\"seo-faq-pairs#what-are-the-different-ip-address-formats\">\n<div class=\"lb-row lb-row-max-large lb-snap\">\n<div class=\"lb-col lb-tiny-24 lb-mid-24\">\n<p>\u4ec0\u4e48\u662f CIDR\uff1f<\/p>\n<pre class=\"code\">\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u4e24\u4e2a\u95ee\u9898\uff0c\u8bde\u751f\u4e86CIDR\uff0cCIDR\u662f\u4e00\u4e2a\u65b0\u7684IP\u5730\u5740\u5206\u914d\u65b9\u5f0f\uff0c\u91c7\u7528\u7684\u662f\u53ef\u53d8\u957f\u7684\u5b50\u7f51\u63a9\u7801\uff0c\u79f0\u4e4b\u4e3a<span style=\"background-color: #ff0000;\">\u65e0\u7c7b\u522b<\/span>\u57df\u95f4\u8def\u7531\uff08\u6d88\u9664\u4f20\u7edf\u7684\u5206A\u7c7b\u3001B\u7c7b\u4ee5\u53ca\u5b50\u7f51\u5212\u5206\u6982\u5ff5\uff0c\u91cd\u65b0\u5f00\u59cb\uff09 \r\n\r\n\u5728CIDR\u4e2d\uff0cIP\u5730\u5740\u7684\u8868\u8fbe\u683c\u5f0f\u4e3a\uff1a\u201cIP\u5730\u5740\/\u524d\u7f00\u957f\u5ea6\u201d \r\n\u6bd4\u5982 192.168.0.1\/24\uff0c\u8868\u793a\u7684\u5c31\u662f\u4ee5192.168.0.1\u4e3aIP\u5730\u5740\uff0c\u524d24\u4f4d\u4e3a\u7f51\u7edc\u5730\u5740\uff0c\u662f\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u6539\u53d8\u7684---\u300b\u5b50\u7f51\u5212\u5206<\/pre>\n<p>CIDR\u89e3\u51b3\u4e86\u4ec0\u4e48\u95ee\u9898<\/p>\n<pre class=\"code\">CIDR\u7684\u6838\u5fc3\u601d\u60f3\u662f\u65e0\u89c6\u4f20\u7edf\u7684A\u3001B\u3001C\u7c7b\u5730\u5740\u5212\u5206\u65b9\u6cd5\uff0c\u5141\u8bb8\u4efb\u610f\u957f\u5ea6\u7684\u7f51\u7edc\u524d\u7f00\uff0c\u56e0\u6b64CIDR\u5141\u8bb8\u7f51\u7edc\u4ee5\u4efb\u610f\u5927\u5c0f\u6765\u5212\u5206\uff0c\u8fd9\u5c31\u589e\u52a0\u4e86\u5730\u5740\u7a7a\u95f4\u7684\u4f7f\u7528\u7387\uff0c\u51cf\u5c11\u4e86\u6d6a\u8d39\u3002 \r\n\u5176\u6b21\uff0cCIDR\u901a\u8fc7IP\u524d\u7f00\u6765\u8fdb\u884c\u8def\u7531\u805a\u5408\uff0c\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u8def\u7531\u8868\u9879\uff0c\u4ece\u800c\u6539\u5584\u4e86\u5168\u7403Internet\u7684\u53ef\u4f38\u7f29\u6027 \r\n\r\n\u7efc\u4e0a\uff0c\u5c31\u662f\u4e24\u70b9 \r\n======&gt;1\u3001\u53d8\u957f\u5b50\u7f51\u5212\u5206-\u300b\u51cf\u5c11ip\u6d6a\u8d39\r\n\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u53ea\u9700\u898130\u4e2a\u5730\u5740\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\/27\u7684\u5b50\u7f51\uff08\u4f8b\u5982\uff0c192.168.1.0\/27\uff09\uff0c\u8fd9\u5c06\u7ed9\u4f6032\u4e2a\u5730\u5740\uff08\u51cf\u53bb\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\u540e\u53ef\u752830\u4e2a\uff09\uff0c\r\n\u4e0eC\u7c7b\u7f51\u7edc\uff08\u63d0\u4f9b256\u4e2a\u5730\u5740\uff09\u76f8\u6bd4\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4eIP\u5730\u5740\u7684\u6d6a\u8d39\u3002 \r\n\r\n======&gt;2\u3001\u8def\u7531\u805a\u5408 \r\n\u8def\u7531\u805a\u5408\u4e5f\u79f0\u4f5c\u8def\u7531\u6c47\u603b\u6216\u8d85\u7f51\u5212\u5206\u3002\u8fd9\u5141\u8bb8\u591a\u4e2a\u76f8\u63a5\u7684\u5b50\u7f51\u88ab\u8868\u793a\u4e3a\u4e00\u4e2a\u5355\u4e00\u7684\u3001\u8f83\u5927\u7684\u5730\u5740\u5757\uff0c\u4ee5\u6b64\u964d\u4f4e\u5168\u5c40\u8def\u7531\u8868\u7684\u5927\u5c0f\u3002\r\n\u4f8b\u5982\uff0c\u5047\u8bbe\u67098\u4e2aC\u7c7b\u7f51\u7edc\uff08192.168.1.0\/24\uff0c192.168.2.0\/24\uff0c...\uff0c192.168.8.0\/24\uff09\u3002\r\n\u5728\u6ca1\u6709\u8def\u7531\u805a\u5408\u7684\u60c5\u51b5\u4e0b\uff0c\u8def\u7531\u5668\u9700\u8981\u5728\u8def\u7531\u8868\u4e2d\u4e3a\u8fd98\u4e2a\u7f51\u7edc\u5404\u6dfb\u52a0\u4e00\u6761\u8def\u7531\u8bb0\u5f55\u3002\u4f7f\u7528CIDR\u7684\u8def\u7531\u805a\u5408\uff0c\r\n\u8fd98\u4e2a\u7f51\u7edc\u53ef\u4ee5\u7528\u4e00\u4e2a\u5355\u4e00\u7684CIDR\u5757\u201c192.168.0.0\/21\u201d\u8fdb\u884c\u8868\u793a\uff0c\u663e\u8457\u51cf\u5c11\u4e86\u8def\u7531\u4fe1\u606f\u7684\u6570\u91cf\uff0c\u901a\u8fc7\u51cf\u5c11\u8def\u7531\u8868\u7684\u5927\u5c0f\uff0c\u589e\u5f3a\u4e86\u4e92\u8054\u7f51\u7684\u53ef\u6269\u5c55\u6027\u3002<\/pre>\n<p id=\"seo-faq-pairs#what-are-the-different-ip-address-formats\" class=\"lb-txt-bold lb-txt-none lb-txt-28 lb-h2 lb-title\">\u6709\u7c7b\u5730\u5740\u4e0e\u65e0\u7c7b\u5730\u5740<\/p>\n<div class=\"lb-txt-14 lb-rtxt\">\n<pre>IP \u5730\u5740\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\r\n<em>1\u3001\u7f51\u7edc\u5730\u5740<\/em>\uff0c\u8fd9\u662f\u4e00\u8fde\u4e32\u6307\u5411\u7f51\u7edc\u552f\u4e00\u6807\u8bc6\u7b26\u7684\u6570\u5b57\r\n<em>2\u3001\u4e3b\u673a\u5730\u5740<\/em>\uff0c\u8fd9\u662f\u4e00\u8fde\u4e32\u6570\u5b57\uff0c\u8868\u793a\u7f51\u7edc\u4e0a\u7684\u4e3b\u673a\u6216\u5355\u4e2a\u8bbe\u5907\u6807\u8bc6\u7b26\r\n\u5728 20 \u4e16\u7eaa 90 \u5e74\u4ee3\u521d\u4e4b\u524d\uff0cIP \u5730\u5740\u90fd\u662f\u4f7f\u7528\u6709\u7c7b\u5bfb\u5740\u7cfb\u7edf\u5206\u914d\u7684\u3002\u5730\u5740\u7684\u603b\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u5206\u914d\u7ed9\u7f51\u7edc\u548c\u4e3b\u673a\u90e8\u5206\u7684\u4f4d\u6570\u4e5f\u662f\u56fa\u5b9a\u7684\u3002\r\n\r\n<strong>\u6709\u7c7b\u5730\u5740<\/strong>\r\n\r\n\u4e00\u4e2a IPv4 \u5730\u5740\u7531 32 \u4f4d\u7ec4\u6210\u3002\u7528\u53e5\u70b9\u5206\u9694\u7684\u6bcf\u4e32\u6570\u5b57\u7531 8 \u4f4d\u7ec4\u6210\uff0c\u4ee5 0 \u5230 255 \u7684\u6570\u5b57\u5f62\u5f0f\u8868\u793a\u3002\u7ec4\u7ec7\u53ef\u4ee5\u8d2d\u4e70\u4e09\u7c7b IPv4 \u5730\u5740\u3002\r\n\r\n<strong><em>A \u7c7b<\/em><\/strong>\r\n\r\nA \u7c7b IPv4 \u5730\u5740\u6709 8 \u4e2a\u7f51\u7edc\u524d\u7f00\u4f4d\u3002\u4f8b\u5982\uff0c\u4ee5 44.0.0.1 \u4e3a\u4f8b\uff0c\u5176\u4e2d 44 \u662f\u7f51\u7edc\u5730\u5740\uff0c0.0.1 \u662f\u4e3b\u673a\u5730\u5740\u3002\r\n\r\n<strong><em>B \u7c7b<\/em><\/strong>\r\n\r\nB \u7c7b IPv4 \u5730\u5740\u6709 16 \u4e2a\u7f51\u7edc\u524d\u7f00\u4f4d\u3002\u4f8b\u5982\uff0c\u4ee5 128.16.0.2 \u4e3a\u4f8b\uff0c\u5176\u4e2d 128.16 \u662f\u7f51\u7edc\u5730\u5740\uff0c0.2 \u662f\u4e3b\u673a\u5730\u5740\u3002\r\n\r\n<strong><em>C \u7c7b<\/em><\/strong>\r\n\r\nC \u7c7b IPv4 \u5730\u5740\u6709 24 \u4e2a\u7f51\u7edc\u524d\u7f00\u4f4d\u3002\u4f8b\u5982\uff0c\u4ee5 192.168.1.100 \u4e3a\u4f8b\uff0c\u5176\u4e2d 192.168.1 \u662f\u7f51\u7edc\u5730\u5740\uff0c100 \u662f\u4e3b\u673a\u5730\u5740\u3002\r\n\r\n<strong>\u65e0\u7c7b\u5730\u5740<\/strong>\r\n\r\n\u65e0\u7c7b\u6216\u65e0\u7c7b\u522b\u57df\u95f4\u8def\u7531 (CIDR) \u5730\u5740\u4f7f\u7528\u53ef\u53d8\u957f\u5ea6\u5b50\u7f51\u63a9\u7801 (VLSM) \u6765\u6539\u53d8 IP \u5730\u5740\u4e2d\u7f51\u7edc\u5730\u5740\u4f4d\u548c\u4e3b\u673a\u5730\u5740\u4f4d\u4e4b\u95f4\u7684\u6bd4\u7387\u3002\u5b50\u7f51\u63a9\u7801\u662f\u4e00\u7ec4\u6807\u8bc6\u7b26\uff0c\u901a\u8fc7\u5c06\u4e3b\u673a\u5730\u5740\u53d8\u4e3a\u96f6\uff0c\u4ece IP \u5730\u5740\u8fd4\u56de\u7f51\u7edc\u5730\u5740\u7684\u503c\u3002\r\n\r\nVLSM \u5e8f\u5217\u5141\u8bb8\u7f51\u7edc\u7ba1\u7406\u5458\u5c06 IP \u5730\u5740\u7a7a\u95f4\u5206\u89e3\u4e3a\u4e0d\u540c\u5927\u5c0f\u7684\u5b50\u7f51\u3002\u6bcf\u4e2a\u5b50\u7f51\u53ef\u4ee5\u6709\u7075\u6d3b\u7684\u4e3b\u673a\u6570\u91cf\u548c\u6709\u9650\u7684 IP \u5730\u5740\u6570\u91cf\u3002CIDR IP \u5730\u5740\u5728\u666e\u901a IP \u5730\u5740\u7684\u57fa\u7840\u4e0a\u9644\u52a0\u4e86\u4e00\u4e2a\u540e\u7f00\u503c\uff0c\u8bf4\u660e\u7f51\u7edc\u5730\u5740\u524d\u7f00\u4f4d\u6570\u3002\r\n\r\n\u4f8b\u5982\uff0c192.0.2.0\/24 \u662f\u4e00\u4e2a IPv4 CIDR \u5730\u5740\uff0c\u5176\u4e2d\u524d 24 \u4f4d\uff08\u5373 192.0.2\uff09\u662f\u7f51\u7edc\u5730\u5740\u3002<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"lb-none-v-margin lb-grid lb-small-pad lb-grid\" data-eb-item-id=\"seo-faq-pairs#how-does-cidr-work\">\n<div class=\"lb-row lb-row-max-large lb-snap\">\n<div class=\"lb-col lb-tiny-24 lb-mid-24\">\n<p id=\"seo-faq-pairs#how-does-cidr-work\" class=\"lb-txt-bold lb-txt-none lb-txt-28 lb-h2 lb-title\"><strong>CIDR\u5730\u5740\u5757-\u300b\u5c42\u5c42\u5206\u914d\u4e0b\u53bb<\/strong><\/p>\n<div class=\"lb-txt-14 lb-rtxt\">\n<p>CIDR \u6570\u636e\u5757\u662f\u5171\u4eab\u76f8\u540c\u7f51\u7edc\u524d\u7f00\u548c\u4f4d\u6570\u7684 IP \u5730\u5740\u7684\u96c6\u5408\u3002\u4e00\u4e2a\u5927\u6570\u636e\u5757\u7531\u66f4\u591a IP \u5730\u5740\u548c\u4e00\u4e2a\u5c0f\u540e\u7f00\u7ec4\u6210\u3002<\/p>\n<p>\u4e92\u8054\u7f51\u53f7\u7801\u5206\u914d\u673a\u6784 (IANA) \u5411\u533a\u57df\u4e92\u8054\u7f51\u6ce8\u518c\u7ba1\u7406\u673a\u6784 (RIR) \u5206\u914d\u5927\u578b CIDR \u6570\u636e\u5757\u3002\u7136\u540e\uff0cRIR \u5c06\u8f83\u5c0f\u7684\u6570\u636e\u5757\u5206\u914d\u7ed9\u672c\u5730\u4e92\u8054\u7f51\u6ce8\u518c\u7ba1\u7406\u673a\u6784 (LIR)\uff0c\u7136\u540e\u7531\u672c\u5730\u4e92\u8054\u7f51\u6ce8\u518c\u7ba1\u7406\u673a\u6784 (LIR) \u5c06\u5176\u5206\u914d\u7ed9\u7ec4\u7ec7\u3002\u540c\u65f6\uff0c\u79c1\u4eba\u7528\u6237\u5411\u5176\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\u7533\u8bf7 CIDR \u6570\u636e\u5757\u3002<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/d2908q01vomqb2.cloudfront.net\/cb4e5208b4cd87268b208e49452ed6e89a68e0b8\/2016\/10\/25\/VPC_Image2.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/d2908q01vomqb2.cloudfront.net\/cb4e5208b4cd87268b208e49452ed6e89a68e0b8\/2016\/10\/25\/VPC_Image2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<div class=\"lb-none-v-margin lb-grid lb-small-pad eb-bg-dark\" data-eb-item-id=\"seo-faq-pairs#how-is-cidr-used-in-ipv6\">\n<div class=\"lb-row lb-row-max-large lb-snap eb-active\">\n<div class=\"lb-col lb-tiny-24 lb-mid-24\">\n<p id=\"seo-faq-pairs#how-is-cidr-used-in-ipv6\" class=\"lb-txt-bold lb-txt-none lb-txt-28 lb-h2 lb-title\">IPv6 \u4e2d\u5982\u4f55\u4f7f\u7528 CIDR\uff1f<\/p>\n<div class=\"lb-txt-14 lb-rtxt\">\n<pre class=\"code\">IPv6 \u662f\u4e00\u79cd\u65e8\u5728\u53d6\u4ee3 IPv4 \u7684\u7f51\u7edc\u5bfb\u5740\u7cfb\u7edf\u3002IPv6 \u4f7f\u7528 128 \u4f4d\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u8fd9\u4f7f\u5b83\u80fd\u591f\u5bb9\u7eb3\u6bd4 IPv4 \u591a 1028 \u500d\u7684 IP \u5730\u5740\u3002\r\n\r\nIPv6 \u5730\u5740\u7531 8 \u4e2a\u4ee5\u5192\u53f7\u5206\u9694\u7684\u5341\u516d\u8fdb\u5236\u503c\u7ec4\u6210\u3002IPv6 \u5177\u6709\u66f4\u5927\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u53ef\u5bb9\u7eb3\u5982\u4eca\u8d8a\u6765\u8d8a\u591a\u8fde\u63a5\u5230\u4e92\u8054\u7f51\u7684\u8bbe\u5907\u3002\r\n\r\n\u5728\u65e0\u7c7b\u522b\u57df\u95f4\u8def\u7531 (CIDR) \u4e0b\uff0cIPv6 \u5730\u5740\u53ef\u4ee5\u4e0e\u4efb\u610f\u4f4d\u957f\u5ea6\u7684\u524d\u7f00\u805a\u5408\uff0c\u8fd9\u4e00\u70b9\u4e0e IPv4 \u5730\u5740\u7c7b\u4f3c\u3002\u4f8b\u5982\uff0c2001:0db8:\/32 \u662f\u4e00\u4e2a IPv6 CIDR \u5730\u5740\uff0c\u4ee5\u524d 32 \u4f4d\u6216 2001:db8 \u4f5c\u4e3a\u7f51\u7edc\u5730\u5740\u3002\r\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>https:\/\/aws.amazon.com\/cn\/what-is\/cidr\/<\/p>\n<p><\/div><\/div><\/p>\n<p>&nbsp;<\/p>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>k8s pod ip\u5730\u5740\u89c4\u5212\uff08\u57fa\u4e8ecidr\uff09<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p><span style=\"background-color: #ff0000;\">Kubernetes \u4e3a\u6bcf\u4e2a\u8282\u70b9\u5206\u914d\u4e00\u4e2a\u00a0\/24 CIDR \u5730\u5740\u5757\uff08256 \u4e2a\u5730\u5740\uff09<\/span>\uff0c\u4ee5\u4fbf\u6bcf\u4e2a Pod \u53ef\u4ee5\u62e5\u6709\u552f\u4e00\u7684 IP \u5730\u5740\u3002<\/p>\n<pre class=\"code\">\u4f8b\u5982\uff1a \r\nnode01\uff1a 10.244.0.0\/24 \r\nnode02: 10.244.1.0\/24 \r\nnode03: 10.244.2.0\/24<\/pre>\n<p>CIDR \u5730\u5740\u5757\u7684\u5927\u5c0f\u5bf9\u5e94\u4e8e\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf\uff0c\u4f46\u4e0d\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\uff0c\u901a\u5e38\u53ef\u7528IP\u5730\u5740\u6570\u4e3aPod\u6570\u636e\u91cf\u7684\u4e24\u500d\uff0c\u5982\u6b64\uff0c\u5f53 Pod \u88ab\u6dfb\u52a0\u5230\u8282\u70b9\u6216\u4ece\u8282\u70b9\u4e2d\u79fb\u9664\u65f6\uff0cKubernetes \u80fd\u591f\u51cf\u5c11 IP \u5730\u5740\u7684\u91cd\u7528\u3002<\/p>\n<p>\u4e0b\u8868\u5217\u51fa\u4e86 CIDR \u5757\u7684\u5927\u5c0f\u4ee5\u53ca Kubernetes \u6839\u636e\u6bcf\u4e2a\u8282\u70b9\u7684 Pod \u6570\u91cf\u4e0a\u9650\u5206\u914d\u7ed9\u8282\u70b9\u7684\u53ef\u7528 IP \u5730\u5740\u7684\u76f8\u5e94\u6570\u91cf\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf<\/th>\n<th>\u6bcf\u4e2a\u8282\u70b9\u7684 CIDR \u8303\u56f4<\/th>\n<th>IP \u5730\u5740\u6570\u91cf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>8<\/td>\n<td>\/28<\/td>\n<td>16<\/td>\n<\/tr>\n<tr>\n<td>9 &#8211; 16<\/td>\n<td>\/27<\/td>\n<td>32<\/td>\n<\/tr>\n<tr>\n<td>17 &#8211; 32<\/td>\n<td>\/26<\/td>\n<td>64<\/td>\n<\/tr>\n<tr>\n<td>33 &#8211; 64<\/td>\n<td>\/25<\/td>\n<td>128<\/td>\n<\/tr>\n<tr>\n<td>65 \u2013 128<\/td>\n<td>\/24<\/td>\n<td>256<\/td>\n<\/tr>\n<tr>\n<td>129 &#8211; 256<\/td>\n<td>\/23<\/td>\n<td>512<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<pre><code class=\"language-text\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cKubernetes\u7684\u8282\u70b9\u914d\u7f6e\u4e3a\u8fd0\u884c\u4e0d\u8d85\u8fc7 110 \u4e2a Pod\u3001\u6bcf\u4e2a\u8282\u70b9\u7684CIDR\u8303\u56f4\u4e3a\/24\u3001\u6bcf\u4e2a\u8282\u70b9\u53ef\u7528IP\u5730\u5740\u6570\u91cf\u4e3a256<\/code><\/pre>\n<p>\u914d\u7f6e\u6bcf\u4e2a\u7269\u7406\u8282\u70b9\u7684\u6700\u5927POD\u6570\u65f6\uff0c\u4f1a\u95f4\u63a5\u914d\u7f6e\u6bcf\u4e2a\u7269\u7406\u8282\u70b9\u7684ip\u5730\u5740\u7a7a\u95f4<\/p>\n<pre>\u4f8b\u5982\uff1a\r\n\r\n1\u3001\u914d\u7f6e\u6bcf\u4e2a\u7269\u7406\u8282\u70b9\u7684\u6700\u5927pod\u6570\u4e3a30\uff0c\u5219\u9ed8\u8ba4\u4f7f\u7528\/26\u7684CIDR\u8303\u56f4\uff0c\u5373\u6bcf\u4e2a\u8282\u70b9\u53ef\u7528ip\u4e3a64\u4e2a\r\n\r\n2\u3001\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927pod\u6570\uff0c\u5219\u9ed8\u8ba4\u4f7f\u7528\/24\u7684CIDR\u8303\u56f4\uff0c\u5373\u6bcf\u4e2a\u8282\u70b9\u53ef\u7528ip\u4e3a256\u4e2a<\/pre>\n<p>\u4e86\u89e3<\/p>\n<p data-pid=\"_rffULiv\">\n<p data-pid=\"_rffULiv\">\u51cf\u5c11\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf\u53ef\u4ee5\u4f7f\u96c6\u7fa4\u62e5\u6709\u66f4\u591a\u8282\u70b9\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u8282\u70b9\u6240\u9700\u7684\u603b IP \u5730\u5740\u7a7a\u95f4\u8f83\u5c0f\u3002\u51cf\u5c11\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf\u4e5f\u53ef\u4ee5\u521b\u5efa\u9700\u8981\u8f83\u5c11 IP \u5730\u5740\u7684\u8f83\u5c0f\u96c6\u7fa4\u3002\u4f8b\u5982\uff0c\u6bcf\u4e2a\u8282\u70b9\u6709 8 \u4e2a Pod\uff0c\u6bcf\u4e2a Pod \u5206\u914d\u4e00\u4e2a \/28 CIDR\u3002\u8fd9\u4e9b Pod IP \u5730\u5740\u8303\u56f4\u786e\u5b9a\u4e86\u6210\u529f\u521b\u5efa\u96c6\u7fa4\u6240\u9700\u7684 IP \u5730\u5740\u6570\u91cf\u3002<\/p>\n<p data-pid=\"VzAzwHD5\">\u6839\u636e\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf\uff0cKubernetes \u4f1a\u4e3a\u6bcf\u4e2a\u8282\u70b9\u5206\u914d\u4e00\u4e2a \/24 CIDR \u8303\u56f4\u4ee5\u4f9b\u8282\u70b9\u7684 Pod \u4f7f\u7528\u3002\u7531\u4e8e\u6b64\u96c6\u7fa4\u4ece \/21 CIDR \u8303\u56f4 (cluster-ipv4-cidr) \u5206\u914d Pod IP \u5730\u5740\uff0c\u56e0\u6b64\u6700\u591a\u53ef\u4ee5\u6709\u516b\u4e2a\u8282\u70b9\uff0824-21 = 3\uff0c2**3 = 8\uff09\u3002<\/p>\n<p data-pid=\"ypSoWL2_\">\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u6700\u591a\u53ef\u5305\u542b 128 \u4e2a\u8282\u70b9\u7684\u96c6\u7fa4\u3002\u6839\u636e\u6bcf\u4e2a\u8282\u70b9\u7684\u6700\u5927 Pod \u6570\u91cf\uff0cKubernetes \u4f1a\u4e3a\u6bcf\u4e2a\u8282\u70b9\u5206\u914d\u4e00\u4e2a \/28 CIDR \u8303\u56f4\u4ee5\u4f9b\u8282\u70b9\u7684 Pod \u4f7f\u7528\u3002\u56e0\u4e3a\u6240\u6709 Pod \u7684\u5730\u5740\u53ef\u7528\u8303\u56f4\u662f \/21 \uff0c\u8fd9\u610f\u5473\u7740\u6700\u591a\u53ef\u4ee5\u6709 128 \u4e2a\u8282\u70b9\uff0828-21 = 7\uff0c27 = 128\uff09\u3002<\/p>\n<p>\u62d3\u5c55\u9605\u8bfb\u53c2\u8003\u4e0bGKE\uff1ahttps:\/\/cloud.google.com\/kubernetes-engine\/docs\/how-to\/flexible-pod-cidr?hl=zh-cn#gcloud<\/p>\n<p><\/div><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; &nbsp; &nbsp;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/10810"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10810"}],"version-history":[{"count":9,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/10810\/revisions"}],"predecessor-version":[{"id":10819,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/10810\/revisions\/10819"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}