{"id":2437,"date":"2025-05-07T15:05:42","date_gmt":"2025-05-07T07:05:42","guid":{"rendered":"http:\/\/blog.xtaa.cn\/?p=2437"},"modified":"2025-05-07T15:08:53","modified_gmt":"2025-05-07T07:08:53","slug":"%e7%bd%91%e7%bb%9c%e8%ae%be%e7%bd%aemtu-%ef%bc%88%e6%9c%80%e5%a4%a7%e4%bc%a0%e8%be%93%e5%8d%95%e5%85%83%ef%bc%89","status":"publish","type":"post","link":"http:\/\/blog.xtaa.cn\/index.php\/2025\/05\/07\/%e7%bd%91%e7%bb%9c%e8%ae%be%e7%bd%aemtu-%ef%bc%88%e6%9c%80%e5%a4%a7%e4%bc%a0%e8%be%93%e5%8d%95%e5%85%83%ef%bc%89\/","title":{"rendered":"\u7f51\u7edc\u8bbe\u7f6eMTU \uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>MTU \uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u662f\u7f51\u7edc\u8bbe\u5907\u4f20\u8f93\u7684\u4fe1\u606f\u5305\u6700\u5927\u503c\u3002\u5bf9\u4e8e\u5404\u79cd\u8def\u7531\u5668\uff0c\u6700\u4f73\u7684MTU\u503c\u901a\u5e38\u90fd\u662f\u9ed8\u8ba4\u503c\u3002\n\n\n\u5404\u79cd\u5e94\u7528\u4e0b\u7684\u6700\u4f73MTU\u503c\n\u8bbe\u7f6eMTU\u5927\u5c0f\u662f\u4e00\u4e2a\u53cd\u590d\u8bd5\u9a8c\u7684\u8fc7\u7a0b: \u7531\u6700\u5927\u503c1500\u5f00\u59cb\u4e0b\u964d\uff0c\u76f4\u81f3\u95ee\u9898\u89e3\u51b3\u3002\u4f7f\u7528\u4e0b\u5217\u503c\u4e4b\u4e00\u6216\u8bb8\u80fd\u89e3\u51b3\u4e00\u4e9b\u7531MTU\u503c\u5f15\u8d77\u7684\u95ee\u9898\uff1a\n1500. \u4ee5\u592a\u7f51\u4fe1\u606f\u5305\u6700\u5927\u503c\uff0c\u4e5f\u662f\u9ed8\u8ba4\u503c\u3002\u662f\u6ca1\u6709PPPoE\u7684\u7f51\u7edc\u8fde\u63a5\u7684\u5178\u578b\u8bbe\u7f6e\u3002\u662f\u5404\u79cd\u8def\u7531\u5668\u3001\u7f51\u7edc\u9002\u914d\u5668\u548c\u4ea4\u6362\u673a\u7684\u9ed8\u8ba4\u8bbe\u7f6e\n1492. PPPoE \u7684\u6700\u4f73\u503c\n1472. \u4f7f\u7528 ping \u7684\u6700\u5927\u503c \uff08\u5927\u4e8e\u6b64\u503c\u7684\u4fe1\u606f\u5305\u4f1a\u5148\u88ab\u5206\u89e3\uff09\n1468. DHCP\u7684\u6700\u4f73\u503c\n1430. PPTP \u7684\u6700\u4f73\u503c\n576. \u62e8\u53f7\u8fde\u63a5\u5230ISP\u7684\u6807\u51c6\u503c\n\u597d\u4e86\uff0c\u6ce8\u610f\u4e00\u4e0b\uff0c\u4ee5\u4e0a\u8d44\u6599\u662f\u6b63\u5e38\u666e\u901a\u60c5\u51b5\u4e0bMTU\u7684\u503c\uff0c\u4e0d\u540c\u5730\u533a\u4e0d\u540c\u8fd0\u8425\u5546\u4e0d\u540c\u673a\u623f\u6216\u8bb8\u4e5f\u4f1a\u5bfc\u81f4MTU\u503c\u7684\u4e0d\u4e00\u81f4\uff01\n\u5982\u4f55\u67e5\u770bMTU\u503c\u5462\uff1f\n\u7535\u8111\u76f4\u63a5\u63d2\u7f51\u7ebf\u5230modem\u8fdb\u884cADSL\u62e8\u53f7\u4e0a\u7f51\uff0c\u5728cmd\u547d\u4ee4\u4e0b\u8f93\u5165\uff1a\nnetsh interface ipv4 show subinterfaces\n\u5982\u4f55\u6d4b\u8bd5MTU\u503c\u7684\u6700\u5927\u503c\uff1f\nMTU\u503c\u8d8a\u5927\uff0c\u53d1\u5305\u91cf\u5c31\u5927\uff0c\u53d1\u5305\u65f6\u95f4\u51cf\u5c0f\uff0c\u7406\u8bba\u4e0a\u662f\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u7684\u3002\u600e\u6837\u6d4b\u8bd5\u81ea\u5df1\u7684MTU\u503c\u7684\u6700\u5927\u503c\u5462\uff1f\n\u9996\u5148\uff0c\u5728CMD\u547d\u4ee4\u4e0b\u8f93\u5165\uff1a\nping -f -l 1500 www.baidu.com\n1500\u662f\u9ed8\u8ba4\u503c\uff0c\u5148\u6765\u6d4b\u8bd5\u4e00\u4e0b\u662f\u5426\u80fd\u8fbe\u52301500.\n\u547d\u4ee4\u8fd4\u56de\uff1a\u201c\u9700\u8981\u62c6\u5206\u6570\u636e\u5305\u4f46\u662f\u8bbe\u7f6e DF\u3002\u201d \u8bf4\u660eMTU\u503c\u8fc7\u5927\uff01\u6211\u4eec\u628aMTU\u503c\u964d\u4f4e\u8bd5\u8bd5\n\nping -f -l 1450 www.baidu.com\nPING\u503c\u51fa\u6765\u4e86\uff0c\u8bf4\u660eMTU\u8bbe\u7f6e1450\u53ef\u4ee5\u901a\u8fc7\u3002\n\n\u518d\u6d4b\u8bd5\u4e00\u4e0b1451\u3002\nping -f -l 1451 www.baidu.com\n\u547d\u4ee4\u8fd4\u56de\uff1a\u201c\u9700\u8981\u62c6\u5206\u6570\u636e\u5305\u4f46\u662f\u8bbe\u7f6e DF\u3002\u201d \u8bf4\u660eMTU\u503c\u6700\u5927\u5c31\u662f1450\u4e86\u3002\n\n\u4e8e\u662f\u6709\u4eba\u5c31\u7591\u95ee\uff0c\u4e3a\u4ec0\u4e48\u5728modem\u4e0b\u6d4b\u8bd5\u662f1478\uff0c\u800cping\u503c\u6d4b\u8bd5 \u662f1450\uff1f\n\u4e0a\u9762ping\u5f97\u5230\u7684MTU\u503c\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e\u672c\u5730\u8bbe\u7f6e\u4e0a\uff0c\u8fd8\u5e94\u5728\u6b64\u57fa\u7840\u4e0a\u52a0\u4e0a28\uff08\u6570\u636e\u5305\u5934\u5927\u5c0f28\u5b57\u8282\uff09\uff0c\u56e0\u6b64\u6700\u7ec8\u5728WAN\u8bbe\u7f6e\u9875\u9762\u4fee\u6539MTU\u5927\u5c0f\u4e3a1478\u3002\n\u6700\u540e\uff0c\u6211\u5c31\u5728\u8def\u7531\u5668\u7684WAN\u63a5\u53e3\u8bbe\u7f6eMTU\u503c1478.\n------------------------------------------------------------------------------------------------------\n\u6309\u7167\u4e0a\u9762\u65b9\u6cd5\uff0c\u6211\u80fdping\u901a\u7684MTU\u6700\u5927\u503c\u662f1464\uff0c\u518d\u52a0\u4e0a28\uff08\u6570\u636e\u5305\u5934\u5927\u5c0f28\u5b57\u8282\uff09\uff0c\u5e94\u8be5\u8bbe\u7f6e\u7684\u503c\u4e3a1492\uff0c\u521a\u597d\u662fPPPoE\u7684\u6700\u4f73\u503c<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/blog.csdn.net\/Timxiaolong\/article\/details\/144408480\">\u89e3\u51b3IPV6 PMTU\u9ed1\u6d1e\u5bfc\u81f4\u67d0\u4e9b\u624b\u673aAPP\u56fe\u7247\u52a0\u8f7d\u65f6\u95f4\u8fc7\u957f\uff0c\u5c0f\u7c73BE6500PRO\u4e3a\u4f8b<\/a><\/p>\n\n\n\n<p>\u4e4b\u524d\u6709\u5c1d\u8bd5\u8fc7\u964d\u4f4eMTU\u5927\u5c0f\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u6539\u4e4b\u540e\u5f53\u65f6\u5f88\u597d\u7528\uff0c\u7b2c\u4e8c\u5929\u53c8\u4f1a\u8d85\u51fa\u5927\u5c0f\uff0c\u8fd8\u8981\u63a5\u7740\u6539\u3002\u770b\u5927\u4f6c\u7684\u6587\u7ae0\u6700\u597d\u7684\u89e3\u51b3\u529e\u6cd5\u662f\u6253\u5f00\u8def\u7531\u5668\u4e2d\u7684<strong>MSS\u94b3\u5236<\/strong>\uff08\u7528\u4e8e\u5728TCP\u8fde\u63a5\u5efa\u7acb\u65f6\uff0c\u6536\u53d1\u53cc\u65b9\u53ef\u4ee5\u901a\u77e5\u5bf9\u65b9\u901a\u4fe1\u65f6\u6bcf\u4e00\u4e2a\u62a5\u6587\u6bb5\u6240\u80fd\u627f\u8f7d\u7684\u6700\u5927\u6570\u636e\u957f\u5ea6\u3002\u800cMTU\u5219\u662f\u6570\u636e\u94fe\u8def\u5c42\u7684\u6700\u5927\u4f20\u8f93\u5355\u5143\uff0c\u9650\u5236\u4e86\u6570\u636e\u5305\u7684\u5927\u5c0f\u3002MSS\u901a\u5e38\u53d7\u9650\u4e8eMTU\uff0c\u6700\u4f73\u60c5\u51b5\u4e0bMSS=MTU-40\uff0c\u4ee5\u592a\u7f51\u73af\u5883\u4e2d\u6700\u5927MSS\u4e3a1460\u5b57\u8282\uff09\u529f\u80fd\uff0c\u53ef\u662f\u5c0f\u7c73\u8def\u7531\u5668\u4e0d\u652f\u6301\u8fd9\u4e2a\u529f\u80fd\uff0c\u5373\u4f7f\u653e\u5728\u5149\u732b\u62e8\u53f7\u4e5f\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\u3002\u6211\u7684\u89e3\u51b3\u529e\u6cd5\u662f\uff0c\u5c06IPV6\u8bbe\u7f6e\u4e2d\u5c40\u57df\u7f51\u83b7\u53d6IP\u65b9\u5f0f\u6539\u4e3a\u201c\u4ec5DHCPv6\u201d<\/p>\n\n\n\n<p>\u56e0\u4e3a\u5b89\u5353\u8bbe\u5907\u53ea\u652f\u6301SLAAC\uff08\u65e0\u72b6\u6001\u5730\u5740\u81ea\u52a8\u6307\u6d3e\uff09\u7684\u65b9\u5f0f\u83b7\u53d6IPV6\u5730\u5740\uff0c\u4f46\u662fWIN10\u548cIOS\u8bbe\u5907\u90fd\u652f\u6301DHCPv6\u7684\u65b9\u5f0f\u83b7\u53d6\uff0c\u6240\u4ee5\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u7981\u6b62\u5b89\u5353\u8bbe\u5907\u83b7\u53d6IPV6\u5730\u5740\u3002\uff08\u8fd9\u51e0\u79cd\u9009\u9879\u5177\u4f53\u7684\u5dee\u522b\u53ef\u4ee5\u53c2\u8003\uff1a<a 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2437","post","type-post","status-publish","format-standard","hentry","category-11"],"_links":{"self":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2437"}],"version-history":[{"count":3,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2437\/revisions"}],"predecessor-version":[{"id":2440,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2437\/revisions\/2440"}],"wp:attachment":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2437"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}