{"id":760,"date":"2008-05-31T18:19:23","date_gmt":"2008-05-31T10:19:23","guid":{"rendered":"http:\/\/jir.no-ip.org\/wordpress\/?p=760"},"modified":"2008-05-31T18:19:23","modified_gmt":"2008-05-31T10:19:23","slug":"%e9%9b%bb%e8%85%a6%e4%bd%bf%e7%94%a8%e6%89%8b%e6%a9%9f%e7%9a%8435g%e8%a1%8c%e5%8b%95%e4%b8%8a%e7%b6%b2-%e6%98%af%e8%a6%81%e4%bf%ae%e6%94%b9mtu%e5%80%bc%e6%94%b9%e5%96%84%e9%80%a3%e7%b7%9a%e5%93%81%e8","status":"publish","type":"post","link":"https:\/\/jir.idv.tw\/wordpress\/?p=760","title":{"rendered":"\u96fb\u8166\u4f7f\u7528\u624b\u6a5f\u76843.5G\u884c\u52d5\u4e0a\u7db2 \u662f\u8981\u4fee\u6539MTU\u503c\u6539\u5584\u9023\u7dda\u54c1\u8cea\u7684"},"content":{"rendered":"

\u6069\u3002\u3002\u3002
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\n\u624d\u6703\u8b93\u7db2\u8def\u5448\u73fe\u5c1a\u53ef\u63a5\u53d7\u7684\u9023\u7dda\u54c1\u8cea<\/p>\n

\u5f8c\u4f86\u4e0d\u77e5\u9053\u54ea\u6839\u7b4b\u60f3\u5230
\n\u597d\u50cf\u4ee5\u524d\u6709\u5728\u641e\u7db2\u8def\u6700\u4f73\u5316\u7684\u5fc3\u5f97
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\u75c7\u72c0\uff1a
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\n\u5c31\u6703\u7522\u751f\u65b7\u7dda \u6216\u662f\u9023\u7dda\u72c0\u614b\u4f46\u662f\u65b7\u8a0a\u72c0\u6cc1<\/p>\n

\u53c3\u8003\u8cc7\u6599\uff1a
\nhttp:\/\/blog.xuite.net\/beavisliu\/blog\/15106473<\/a><\/p>\n

\u6e2c\u8a66MTU\u6700\u5927\u503c\u65b9\u6cd5\uff1a
\n\u4f7f\u7528ms-dos \u547d\u4ee4\u63d0\u793a\u8996\u7a97<\/p>\n

ping -f -l 1500 www.hinet.net<\/p><\/blockquote>\n

\u5982\u679c\u56de\u61c9
\nPacket needs to be fragmented but DF set.
\n\u6216\u662f
\nRequest timeout.
\n\u5c31\u5fc5\u9808\u628a1500\u503c\u8abf\u6574\u5c0f\u4e00\u9ede<\/p>\n

\u76f4\u5230\u6709\u51fa\u73fe
\nReply from 203.66.88.89: bytes=548 time=1143ms TTL=248
\n\u9019\u6a23\u7684\u56de\u61c9
\n\u90a3\u8868\u793a\u61c9\u8a72\u8a2d\u5b9a\u7684MTU\u503c\u70ba548+28=576<\/p>\n

\u5728\u6211\u7684\u7db2\u8def\u74b0\u5883\u4e2d \u9019\u6a23\u7684\u6578\u503c\u525b\u597d\u5c31\u662f\u64a5\u63a5\u9700\u8981\u8a2d\u5b9a\u7684\u6578\u503c
\n\u53c3\u8003\u7684\u6578\u503c\uff1a
\n\u7db2\u8def\u4ecb\u9762 MTU
\nEtherNet \uff08\u4e00\u822c\u7684\u7db2\u8def\u4ecb\u9762\uff0c\u9019\u662f\u9810\u8a2d\u503c\uff09 \t1500
\nPPPoE(ADSL\u7528\u7684) \t1492
\nDial-up(modem) \t576<\/p>\n

\u6240\u4ee5\u4ee5\u6211\u7684XP\u4f86\u8aaa
\n\u8981\u6253\u958bregedit
\n\u9078\u5230
\nHKEY_Local_MachineSYSTEMCurrentControlSetServicesTcpipParametersAdapters
\n\u7136\u5f8c\u627e\u5230\u76ee\u524d\u7db2\u5361\u7684\u8a2d\u5b9a\uff08\u5df2\u64a5\u63a5\u6216\u6709\u5728\u4f7f\u7528\u4e2d\u7684\u4ecb\u9762 \u8cc7\u6599\u6703\u6bd4\u5176\u4ed6\u7684\u591a\uff09
\n\u63a5\u8457 \u65b0\u589e DWORD\u503c \u5efa\u7acb\u4e00\u500b\u540d\u70ba MTU \u7684\u6a5f\u78bc
\n\u6539\u6210\u5341\u9032\u4f4d \u8f38\u5165\u525b\u525b\u52a0\u4e8628\u7684\u6578\u503c\uff08\u50cf\u6211\u7684\u5c31\u662f576\uff09
\n\u5b8c\u7562\u5f8c \u91cd\u958b\u6a5f<\/p>\n

\u63a5\u4e0b\u4f86\u7db2\u8def\u7684\u9023\u7dda\u72c0\u614b\u61c9\u8a72\u6703\u5927\u5927\u7684\u6539\u5584\u9023\u7dda\u54c1\u8cea\uff01\uff01<\/p>\n

\u8a71\u8aaa\u70ba\u4ec0\u9ebc\u6211\u6703\u77e5\u9053\u8981\u4fee\u6539\u9019\u500b\u5462
\n\u5176\u5be6
\n\u6211\u5bb6\u88cf\u7684\u7db2\u8def \u672c\u7528Linux\u7576NAT\u4e3b\u6a5f
\n\u800c\u6211\u5f8c\u4f86\u8981\u53bb\u91d1\u9580\u7576\u5175 \u60f3\u8aaa\u5982\u679c\u53c8\u7576\u6389 \u5bb6\u4eba\u6703\u6c92\u8fa6\u6cd5\u8655\u7406
\n\u6240\u4ee5\u5c31\u8dd1\u53bb\u8cb7\u4e86\u4e00\u500bIP\u5206\u4eab\u5668\u4f86\u7528
\n\u53ef\u662f \u56e0\u70ba\u81ea\u5df1\u6d41\u91cf\u5f88\u5927
\n\u4e00\u53f0Linux\u7576\u5c0d\u5916\u7db2\u9801\u4e3b\u6a5f
\n\u6211\u7684\u96fb\u8166\u8dd1emule
\n\u6211\u59b9\u96fb\u8166\u8dd1BT
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\n\u9019\u554f\u984c\u5c31\u4e00\u52de\u6c38\u9038\u4e86<\/p>\n

\u4eca\u5929 \u5728\u53f0\u4e2d\u5de5\u4f5c \u5bbf\u820d\u4e0a\u7db2\u7684\u67d0\u5929
\n\u6211\u7d42\u65bc\u60f3\u5230\u7db2\u8def\u4e0d\u9806\u66a2\u6709\u53ef\u80fd\u53c8\u662fMTU\u503c\u7684\u554f\u984c
\n\u7d93\u904e\u4e8b\u5be6\u8b49\u660e
\n\u4fee\u6539\u5f8c\u9084\u771f\u7684\u5c31\u6574\u500b\u9806\u66a2\u7121\u6bd4
\n\u54c8\u54c8\uff01\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6069\u3002\u3002\u3002 \u4e4b\u524d\u4e00\u76f4\u4ee5\u70ba\u662f\u5bbf\u820d\u9019\u908a\u7684\u57fa\u5730\u53f0\u592a\u5c11\u95dc\u4fc2 \u624d\u6703\u8b93\u7db2\u8def\u5448\u73fe\u5c1a\u53ef\u63a5\u53d7\u7684\u9023\u7dda\u54c1\u8cea \u5f8c\u4f86\u4e0d\u77e5\u9053\u54ea\u6839\u7b4b\u60f3\u5230 \u597d\u50cf\u4ee5\u524d\u6709\u5728\u641e\u7db2\u8def\u6700\u4f73\u5316\u7684\u5fc3\u5f97 \u60f3\u5230MTU\u503c\u4f3c\u4e4e\u8981\u4fee\u6b63\u6210\u64a5\u63a5\u6a21\u5f0f \u75c7\u72c0\uff1a \u96fb\u8a71\u4e00\u4f86\u3001\u50b3\u8f38\u6a94\u6848\u5230\u624b\u6a5f\u3001\u6d41\u91cf\u77ac\u6642\u592a\u591a \u5c31\u6703\u7522\u751f\u65b7\u7dda \u6216\u662f\u9023\u7dda\u72c0\u614b\u4f46\u662f\u65b7\u8a0a\u72c0\u6cc1 \u53c3\u8003\u8cc7\u6599\uff1a http:\/\/blog.xuite.net\/beavisliu\/blog\/15106473 \u6e2c\u8a66MTU\u6700\u5927\u503c\u65b9\u6cd5\uff1a \u4f7f\u7528ms-dos \u547d\u4ee4\u63d0\u793a\u8996\u7a97 ping -f -l 1500 www.hinet.net \u5982\u679c\u56de\u61c9 Packet needs to be fragmented but DF set. \u6216\u662f Request timeout. \u5c31\u5fc5\u9808\u628a1500\u503c\u8abf\u6574\u5c0f\u4e00\u9ede \u76f4\u5230\u6709\u51fa\u73fe Reply from 203.66.88.89: bytes=548 time=1143ms TTL=248 \u9019\u6a23\u7684\u56de\u61c9 \u90a3\u8868\u793a\u61c9\u8a72\u8a2d\u5b9a\u7684MTU\u503c\u70ba548+28=576 \u5728\u6211\u7684\u7db2\u8def\u74b0\u5883\u4e2d \u9019\u6a23\u7684\u6578\u503c\u525b\u597d\u5c31\u662f\u64a5\u63a5\u9700\u8981\u8a2d\u5b9a\u7684\u6578\u503c \u53c3\u8003\u7684\u6578\u503c\uff1a \u7db2\u8def\u4ecb\u9762 MTU EtherNet \uff08\u4e00\u822c\u7684\u7db2\u8def\u4ecb\u9762\uff0c\u9019\u662f\u9810\u8a2d\u503c\uff09 1500 PPPoE(ADSL\u7528\u7684)… Read more (\u5b8c\u6574\u6587\u7ae0\u5167\u5bb9)\u96fb\u8166\u4f7f\u7528\u624b\u6a5f\u76843.5G\u884c\u52d5\u4e0a\u7db2 \u662f\u8981\u4fee\u6539MTU\u503c\u6539\u5584\u9023\u7dda\u54c1\u8cea\u7684<\/span><\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-760","post","type-post","status-publish","format-standard","hentry","category-4","content-layout-excerpt-thumb"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/760","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=760"}],"version-history":[{"count":0,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/760\/revisions"}],"wp:attachment":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}