{"id":520,"date":"2005-10-29T22:58:46","date_gmt":"2005-10-29T22:58:46","guid":{"rendered":"http:\/\/www.icocean.com\/blog\/?p=520"},"modified":"1970-01-01T07:00:00","modified_gmt":"1970-01-01T07:00:00","slug":"%E8%B0%88%E5%AD%90%E7%BD%91%E6%8E%A9%E7%A0%81%E5%8F%8A%E5%85%B6%E8%AE%A1%E7%AE%97","status":"publish","type":"post","link":"https:\/\/www.icocean.com\/blog\/?p=520","title":{"rendered":"\u8c08\u5b50\u7f51\u63a9\u7801\u53ca\u5176\u8ba1\u7b97"},"content":{"rendered":"

\u8c08\u5b50\u7f51\u63a9\u7801\u53ca\u5176\u8ba1\u7b97<\/font><\/p>\n

\u65e5\u671f\uff1a2005-10-24\u00a0\u00a0 \u6765\u6e90\uff1a\u7ad9\u957f\u8d44\u8baf\u7f51<\/p>\n

IP\u5730\u5740\u662f32\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\u503c\uff0c\u7528\u4e8e\u5728TCP\/IP\u901a\u8baf\u534f\u8bae\u4e2d\u6807\u8bb0\u6bcf\u53f0\u8ba1\u7b97\u673a\u7684\u5730\u5740\u3002\u901a\u5e38\u6211\u4eec\u4f7f\u7528\u70b9\u5f0f\u5341\u8fdb\u5236\u6765\u8868\u793a\uff0c\u5982192.168.0.5\u7b49\u7b49\u3002<\/p>\n

\u3000\u3000\u6bcf\u4e2aIP\u5730\u5740\u53c8\u53ef\u5206\u4e3a\u4e24\u90e8\u5206\u3002\u5373\u7f51\u7edc\u53f7\u90e8\u5206\u548c\u4e3b\u673a\u53f7\u90e8\u5206\uff1a\u7f51\u7edc\u53f7\u8868\u793a\u5176\u6240\u5c5e\u7684\u7f51\u7edc\u6bb5\u7f16\u53f7\uff0c\u4e3b\u673a\u53f7\u5219\u8868\u793a\u8be5\u7f51\u6bb5\u4e2d\u8be5\u4e3b\u673a\u7684\u5730\u5740\u7f16\u53f7\u3002\u6309\u7167\u7f51\u7edc\u89c4\u6a21\u7684\u5927\u5c0f\uff0cIP\u5730\u5740\u53ef\u4ee5\u5206\u4e3aA\u3001B\u3001C\u3001D\u3001E\u4e94\u7c7b\uff0c\u5176\u4e2dA\u3001B\u3001C\u7c7b\u662f\u4e09\u79cd\u4e3b\u8981\u7684\u7c7b\u578b\u5730\u5740\uff0cD\u7c7b\u4e13\u4f9b\u591a\u76ee\u4f20\u9001\u7528\u7684\u591a\u76ee\u5730\u5740\uff0cE\u7c7b\u7528\u4e8e\u6269\u5c55\u5907\u7528\u5730\u5740\u3002A\u3001B\u3001C\u4e09\u7c7bIP\u5730\u5740\u6709\u6548\u8303\u56f4\u5982\u4e0b\u8868\uff1a<\/p>\n

\u7c7b\u522b \u7f51\u7edc\u53f7 \/\u5360\u4f4d\u6570 \u4e3b\u673a\u53f7 \/\u5360\u4f4d\u6570 \u7528\u9014
A 1\uff5e127 \/ 8\u00a0 0\uff5e255 0\uff5e255 1\uff5e254 \/ 24 \u56fd\u5bb6\u7ea7
B 128\uff5e191 0\uff5e255 \/ 16\u00a0 0\uff5e255 1\uff5e254 \/ 16 \u8de8\u8fc7\u7ec4\u7ec7
C 192\uff5e223 0\uff5e255 0\uff5e255 \/ 24\u00a0 1\uff5e254 \/ 8 \u4f01\u4e1a\u7ec4\u7ec7<\/p>\n

\u3000\u3000\u968f\u7740\u4e92\u8fde\u7f51\u5e94\u7528\u7684\u4e0d\u65ad\u6269\u5927\uff0c\u539f\u5148\u7684IPv4\u7684\u5f0a\u7aef\u4e5f\u9010\u6e10\u66b4\u9732\u51fa\u6765\uff0c\u5373\u7f51\u7edc\u53f7\u5360\u4f4d\u592a\u591a\uff0c\u800c\u4e3b\u673a\u53f7\u4f4d\u592a\u5c11\uff0c\u6240\u4ee5\u5176\u80fd\u63d0\u4f9b\u7684\u4e3b\u673a\u5730\u5740\u4e5f\u8d8a\u6765\u8d8a\u7a00\u7f3a\uff0c\u76ee\u524d\u9664\u4e86\u4f7f\u7528NAT\u5728\u4f01\u4e1a\u5185\u90e8\u5229\u7528\u4fdd\u7559\u5730\u5740\u81ea\u884c\u5206\u914d\u4ee5\u5916\uff0c\u901a\u5e38\u90fd\u5bf9\u4e00\u4e2a\u9ad8\u7c7b\u522b\u7684IP\u5730\u5740\u8fdb\u884c\u518d\u5212\u5206\uff0c\u4ee5\u5f62\u6210\u591a\u4e2a\u5b50\u7f51\uff0c\u63d0\u4f9b\u7ed9\u4e0d\u540c\u89c4\u6a21\u7684\u7528\u6237\u7fa4\u4f7f\u7528\u3002<\/p>\n

\u3000\u3000\u8fd9\u91cc\u4e3b\u8981\u662f\u4e3a\u4e86\u5728\u7f51\u7edc\u5206\u6bb5\u60c5\u51b5\u4e0b\u6709\u6548\u5730\u5229\u7528IP\u5730\u5740\uff0c\u901a\u8fc7\u5bf9\u4e3b\u673a\u53f7\u7684\u9ad8\u4f4d\u90e8\u5206\u53d6\u4f5c\u4e3a\u5b50\u7f51\u53f7\uff0c\u4ece\u901a\u5e38\u7684\u7f51\u7edc\u4f4d\u754c\u9650\u4e2d\u6269\u5c55\u6216\u538b\u7f29\u5b50\u7f51\u63a9\u7801\uff0c\u7528\u6765\u521b\u5efa\u67d0\u7c7b\u5730\u5740\u7684\u66f4\u591a\u5b50\u7f51\u3002\u4f46\u521b\u5efa\u66f4\u591a\u7684\u5b50\u7f51\u65f6\uff0c\u5728\u6bcf\u4e2a\u5b50\u7f51\u4e0a\u7684\u53ef\u7528\u4e3b\u673a\u5730\u5740\u6570\u76ee\u4f1a\u6bd4\u539f\u5148\u51cf\u5c11\u3002 <\/p>\n

\u3000\u3000\u5b50\u7f51\u63a9\u7801\u662f\u6807\u5fd7\u4e24\u4e2aIP\u5730\u5740\u662f\u5426\u540c\u5c5e\u4e8e\u4e00\u4e2a\u5b50\u7f51\u7684\uff0c\u4e5f\u662f32\u4f4d\u4e8c\u8fdb\u5236\u5730\u5740\uff0c\u5176\u6bcf\u4e00\u4e2a\u4e3a1\u4ee3\u8868\u8be5\u4f4d\u662f\u7f51\u7edc\u4f4d\uff0c\u4e3a0\u4ee3\u8868\u4e3b\u673a\u4f4d\u3002\u5b83\u548cIP\u5730\u5740\u4e00\u6837\u4e5f\u662f\u4f7f\u7528\u70b9\u5f0f\u5341\u8fdb\u5236\u6765\u8868\u793a\u7684\u3002<\/p>\n

\u3000\u3000\u5728\u8ba1\u7b97\u5b50\u7f51\u63a9\u7801\u65f6\uff0c\u6211\u4eec\u8981\u6ce8\u610fIP\u5730\u5740\u4e2d\u7684\u4fdd\u7559\u5730\u5740\uff0c\u5373\u201c 0\u201d\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\uff0c\u5b83\u4eec\u662f\u6307\u4e3b\u673a\u5730\u5740\u6216\u7f51\u7edc\u5730\u5740\u5168\u4e3a\u201c 0\u201d\u6216\u201c 1\u201d\u65f6\u7684IP\u5730\u5740\uff0c\u5b83\u4eec\u4ee3\u8868\u7740\u672c\u7f51\u7edc\u5730\u5740\u548c\u5e7f\u64ad\u5730\u5740\uff0c\u4e00\u822c\u662f\u4e0d\u80fd\u88ab\u8ba1\u7b97\u5728\u5185\u7684\u3002<\/p>\n

\u3000\u3000\u4e0b\u9762\u5c31\u6765\u4ee5\u5b9e\u4f8b\u6765\u8bf4\u660e\u5b50\u7f51\u63a9\u7801\u7684\u7b97\u6cd5\uff1a
\u00a0
\u3000\u3000\u5bf9\u4e8e\u65e0\u987b\u518d\u5212\u5206\u6210\u5b50\u7f51\u7684IP\u5730\u5740\u6765\u8bf4\uff0c\u5176\u5b50\u7f51\u63a9\u7801\u975e\u5e38\u7b80\u5355\uff0c\u5373\u6309\u7167\u5176\u5b9a\u4e49\u5373\u53ef\u5199\u51fa\uff1a\u5982\u67d0B\u7c7bIP\u5730\u5740\u4e3a 10.12.3.0\uff0c\u65e0\u987b\u518d\u5206\u5272\u5b50\u7f51\uff0c\u5219\u8be5IP\u5730\u5740\u7684\u5b50\u7f51\u63a9\u7801\u4e3a255.255.0.0\u3002\u5982\u679c\u5b83\u662f\u4e00\u4e2aC\u7c7b\u5730\u5740\uff0c\u5219\u5176\u5b50\u7f51\u63a9\u7801\u4e3a 255.255.255.0\u3002\u5176\u5b83\u7c7b\u63a8\uff0c\u4e0d\u518d\u8be6\u8ff0\u3002\u4e0b\u9762\u6211\u4eec\u5173\u952e\u8981\u4ecb\u7ecd\u7684\u662f\u4e00\u4e2aIP\u5730\u5740\uff0c\u8fd8\u9700\u8981\u5c06\u5176\u9ad8\u4f4d\u4e3b\u673a\u4f4d\u518d\u4f5c\u4e3a\u5212\u5206\u51fa\u7684\u5b50\u7f51\u7f51\u7edc\u53f7\uff0c\u5269\u4e0b\u7684\u662f\u6bcf\u4e2a\u5b50\u7f51\u7684\u4e3b\u673a\u53f7\uff0c\u8fd9\u65f6\u8be5\u5982\u4f55\u8fdb\u884c\u6bcf\u4e2a\u5b50\u7f51\u7684\u63a9\u7801\u8ba1\u7b97
\u4e00\u3001\u5229\u7528\u5b50\u7f51\u6570\u6765\u8ba1\u7b97<\/p>\n

\u3000\u3000\u5728\u6c42\u5b50\u7f51\u63a9\u7801\u4e4b\u524d\u5fc5\u987b\u5148\u641e\u6e05\u695a\u8981\u5212\u5206\u7684\u5b50\u7f51\u6570\u76ee\uff0c\u4ee5\u53ca\u6bcf\u4e2a\u5b50\u7f51\u5185\u7684\u6240\u9700\u4e3b\u673a\u6570\u76ee\u3002<\/p>\n

\u3000\u30001)\u5c06\u5b50\u7f51\u6570\u76ee\u8f6c\u5316\u4e3a\u4e8c\u8fdb\u5236\u6765\u8868\u793a\u3002<\/p>\n

\u3000\u30002)\u53d6\u5f97\u8be5\u4e8c\u8fdb\u5236\u7684\u4f4d\u6570\uff0c\u4e3aN\u3002<\/p>\n

\u3000\u30003)\u53d6\u5f97\u8be5IP\u5730\u5740\u7684\u7c7b\u5b50\u7f51\u63a9\u7801\uff0c\u5c06\u5176\u4e3b\u673a\u5730\u5740\u90e8\u5206\u7684\u7684\u524dN\u4f4d\u7f6e1 \u5373\u5f97\u51fa\u8be5IP\u5730\u5740\u5212\u5206\u5b50\u7f51\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/p>\n

\u3000\u3000\u5982\u6b32\u5c06B\u7c7bIP\u5730\u5740168.195.0.0\u5212\u5206\u621027\u4e2a\u5b50\u7f51\uff1a<\/p>\n

\u3000\u30001)27=11011<\/p>\n

\u3000\u30002)\u8be5\u4e8c\u8fdb\u5236\u4e3a\u4e94\u4f4d\u6570\uff0cN = 5<\/p>\n

\u3000\u30003)\u5c06B\u7c7b\u5730\u5740\u7684\u5b50\u7f51\u63a9\u7801255.255.0.0\u7684\u4e3b\u673a\u5730\u5740\u524d5\u4f4d\u7f6e1\uff0c\u5f97\u5230255.255.248.0\u5373\u4e3a\u5212\u5206\u621027\u4e2a\u5b50\u7f51\u7684B\u7c7bIP\u5730\u5740168.195.0.0\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/p>\n

\u3000\u3000\u4e8c\u3001\u5229\u7528\u4e3b\u673a\u6570\u6765\u8ba1\u7b97<\/p>\n

\u3000\u30001)\u5c06\u4e3b\u673a\u6570\u76ee\u8f6c\u5316\u4e3a\u4e8c\u8fdb\u5236\u6765\u8868\u793a\u3002<\/p>\n

\u3000\u30002)\u5982\u679c\u4e3b\u673a\u6570\u5c0f\u4e8e\u6216\u7b49\u4e8e254\uff08\u6ce8\u610f\u53bb\u6389\u4fdd\u7559\u7684\u4e24\u4e2aIP\u5730\u5740\uff09\uff0c\u5219\u53d6\u5f97\u8be5\u4e3b\u673a\u7684\u4e8c\u8fdb\u5236\u4f4d\u6570\uff0c\u4e3aN\uff0c\u8fd9\u91cc\u80af\u5b9a N<8\u3002\u5982\u679c\u5927\u4e8e254\uff0c\u5219 N>8\uff0c\u8fd9\u5c31\u662f\u8bf4\u4e3b\u673a\u5730\u5740\u5c06\u5360\u636e\u4e0d\u6b628\u4f4d\u3002<\/p>\n

\u3000\u30003)\u4f7f\u7528255.255.255.255\u6765\u5c06\u8be5\u7c7bIP\u5730\u5740\u7684\u4e3b\u673a\u5730\u5740\u4f4d\u6570\u5168\u90e8\u7f6e1\uff0c\u7136\u540e\u4ece\u540e\u5411\u524d\u7684\u5c06N\u4f4d\u5168\u90e8\u7f6e\u4e3a 0\uff0c\u5373\u4e3a\u5b50\u7f51\u63a9\u7801\u503c\u3002<\/p>\n

\u3000\u3000\u5982\u6b32\u5c06B\u7c7bIP\u5730\u5740168.195.0.0\u5212\u5206\u6210\u82e5\u5e72\u5b50\u7f51\uff0c\u6bcf\u4e2a\u5b50\u7f51\u5185\u6709\u4e3b\u673a700\u53f0\uff1a<\/p>\n

\u3000\u30001) 700=1010111100<\/p>\n

\u3000\u30002)\u8be5\u4e8c\u8fdb\u5236\u4e3a\u5341\u4f4d\u6570\uff0cN = 10<\/p>\n

\u3000\u30003)\u5c06\u8be5B\u7c7b\u5730\u5740\u7684\u5b50\u7f51\u63a9\u7801255.255.0.0\u7684\u4e3b\u673a\u5730\u5740\u5168\u90e8\u7f6e1\uff0c\u5f97\u5230255.255.255.255\u3002\u7136\u540e\u518d\u4ece\u540e\u5411\u524d\u5c06\u540e 10\u4f4d \u7f6e0,\u5373\u4e3a\uff1a11111111.11111111.11111100.00000000
\u5373255.255.252.0\u3002\u8fd9\u5c31\u662f\u8be5\u6b32\u5212\u5206\u6210\u4e3b\u673a\u4e3a700\u53f0\u7684B\u7c7bIP\u5730\u5740 168.195.0.0\u7684\u5b50\u7f51\u63a9\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8c08\u5b50\u7f51\u63a9\u7801\u53ca\u5176\u8ba1\u7b97 \u65e5\u671f\uff1a2005-10-24\u00a0\u00a0 \u6765\u6e90\uff1a\u7ad9\u957f\u8d44\u8baf\u7f51 IP\u5730\u5740\u662f32\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\u503c\uff0c\u7528\u4e8e\u5728TC […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-520","post","type-post","status-publish","format-standard","hentry","category-4","category-4-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=520"}],"version-history":[{"count":0,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/520\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}