{"id":1370,"date":"2011-06-26T19:33:02","date_gmt":"2011-06-26T11:33:02","guid":{"rendered":"http:\/\/www.slyar.com\/blog\/?p=1370"},"modified":"2022-07-03T15:52:07","modified_gmt":"2022-07-03T22:52:07","slug":"cisco-napt-acl-portmap","status":"publish","type":"post","link":"http:\/\/www.slyar.com\/blog\/cisco-napt-acl-portmap.html","title":{"rendered":"\u57fa\u4e8ecisco\u8def\u7531\u5668\u7684NAPT\u8f6c\u6362\u53ca\u670d\u52a1\u5668\u7aef\u53e3\u6620\u5c04\u5b9e\u9a8c"},"content":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a<span style=\"color: #0000ff;\">\u59dc\u5357(Slyar) <\/span>\u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (<a title=\"Slyar\" href=\"http:\/\/www.slyar.com\" target=\"_blank\" rel=\"noopener\">www.slyar.com<\/a>) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002<\/p>\n<p>\u5b9e\u9a8c\u62d3\u6251\u56fe\u5982\u4e0b\uff0c\u7f51\u6bb5\u53caIP\u5730\u5740\u4e0d\u505a\u591a\u4f59\u4ecb\u7ecd\uff0c\u914d\u7f6e\u6a21\u5f0f\u53ca\u57fa\u672c\u547d\u4ee4\u4e0d\u505a\u591a\u4f59\u4ecb\u7ecd<\/p>\n<p><a href=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/06\/2011-06-26_184838.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1371\" title=\"www.slyar.com NAPT\u6280\u672f\" src=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/06\/2011-06-26_184838.png\" alt=\"\" width=\"535\" height=\"278\" srcset=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/06\/2011-06-26_184838.png 535w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/06\/2011-06-26_184838-150x78.png 150w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/06\/2011-06-26_184838-300x156.png 300w\" sizes=\"auto, (max-width: 535px) 100vw, 535px\" \/><\/a><\/p>\n<p><strong>\u5b9e\u9a8c\u73af\u5883\u53ca\u5b9e\u9a8c\u76ee\u7684\uff1a<\/strong><\/p>\n<p>0\u3001\u6bcf\u4e2a\u7f51\u6bb5\u4e0a\uff0c\u5de6\u4fa7\u7aef\u53e3\u4e3aF0\/0\uff0c\u53f3\u4fa7\u7aef\u53e3\u4e3aF0\/1<\/p>\n<p>1\u30013\u53f0\u8def\u7531\u5668\u4f5c\u4e3aISP\u8def\u7531\u5668\uff0c\u4e22\u5f03\u4e00\u5207\u79c1\u6709IP\u5730\u5740\uff0c\u53ea\u8def\u7531\u516c\u7f51IP\u5730\u5740\u3002\u5b9e\u9a8c\u4e2d\u53ea\u5728\u8def\u7531\u5668\u4e4b\u95f4\u7684\u7f51\u6bb5\u4e0a\u542f\u7528EIGRP\u8def\u7531\u534f\u8bae<\/p>\n<p>2\u3001ISP\u7ed9\u5de6\u8fb9\u7684\u516c\u53f8\/29\u5927\u5c0f\u7684\u516c\u7f51IP\u5730\u5740\uff0c\u7531\u4e8e\u5de6\u8fb9\u516c\u53f8\u5185\u4e3b\u673a\u6570\u91cf\u5927\u4e8e10K\u53f0\uff0c\u8981\u6c42\u4f7f\u7528\u6240\u6709\u53ef\u7528IP\u5730\u5740\u8fdb\u884c\u52a8\u6001NAPT\u8f6c\u6362<\/p>\n<p>3\u3001ISP\u7ed9\u53f3\u8fb9\u516c\u53f8\/30\u5927\u5c0f\u7684\u516c\u7f51IP\u5730\u5740\uff0c\u5373\u53f3\u4fa7\u516c\u53f8\u53ea\u67091\u4e2a\u53ef\u7528\u516c\u7f51IP\u5730\u5740\uff0c\u8981\u6c42\u4f7f\u7528NAPT\u6280\u672f\u4f7f\u5f97\u53f3\u8fb9\u516c\u53f8\u5185\u4e3b\u673a\u53ef\u4ee5\u4e0a\u7f51\uff0c\u5e76\u4e14\u8981\u6c42\u6620\u5c04\u670d\u52a1\u5668\u768480\u7aef\u53e3\u5230\u5916\u90e8\u7f51\u7edc\u4f9b\u5176\u4ed6\u4eba\u8bbf\u95ee<\/p>\n<p><!--more--><strong>\u4e3b\u8981\u5b9e\u9a8c\u8fc7\u7a0b\uff1a<\/strong><\/p>\n<p><span style=\"color: #0000ff;\">1\u3001\u914d\u7f6e\u5404\u4e2a\u8bbe\u5907\u7684IP\u5730\u5740\uff0c\u4fdd\u8bc1\u5404\u4e2a\u8bbe\u5907\u7684\u8fde\u901a\u6027\uff0c\u4e0d\u8bf4\u3002<\/span><\/p>\n<p><span style=\"color: #0000ff;\">2\u3001\u57283\u53f0\u8def\u7531\u5668\u4e0a\u542f\u7528EIGRP\u8def\u7531\u534f\u8bae<\/span><\/p>\n<p>ISP1\uff1a<\/p>\n<p>router eigrp 100<br \/>\nnetwork 100.100.100.0 0.0.0.7<br \/>\nno auto-summary<\/p>\n<p>ISP2\uff1a<\/p>\n<p>router eigrp 100<br \/>\nnetwork 100.100.100.0 0.0.0.7<br \/>\nnetwork 200.200.200.0 0.0.0.3<br \/>\nno auto-summary<\/p>\n<p>ISP3\uff1a<\/p>\n<p>router eigrp 100<br \/>\nnetwork 200.200.200.0 0.0.0.3<br \/>\nno auto-summary<\/p>\n<p><span style=\"color: #0000ff;\">3\u3001\u5728ISP1\u4e0a\u914d\u7f6e\u5141\u8bb8\u901a\u8fc7NAPT\u6280\u672f\u8f6c\u6362\u7684\u4e3b\u673a\u8303\u56f4<\/span><\/p>\n<p>access-list 1 permit 192.168.1.0 0.0.0.255<\/p>\n<p><span style=\"color: #0000ff;\">4\u3001\u5728ISP1\u4e0a\u914d\u7f6e\u53ef\u4ee5\u8fdb\u884c\u8f6c\u6362\u7684\u516c\u7f51IP\u5730\u5740\u6c60\uff0c\u540d\u5b57\u4e3acisco<\/span><\/p>\n<p>ip nat pool cisco 100.100.100.3 100.100.100.6 netmask 255.255.255.248<\/p>\n<p><span style=\"color: #ff0000;\">\/29\u4e3a8\u4e2a\u5730\u5740\uff0c\u5228\u53bb\u7f51\u7edc\u53f7\u548c\u5e7f\u64ad\u5730\u5740\uff0c\u4ee5\u53ca\u7ebf\u7f06\u4e24\u7aef\u5360\u7528\u76842\u4e2a\u5730\u5740\uff0c\u8fd8\u52694\u4e2a\u53ef\u7528\u5730\u5740<\/span><\/p>\n<p><span style=\"color: #0000ff;\">5\u3001\u5728ISP1\u4e0a\u57fa\u4e8e\u5730\u5740\u6c60\u914d\u7f6eNAPT<\/span><\/p>\n<p>ip nat inside source list 1 pool cisco overload<\/p>\n<p><span style=\"color: #ff0000;\">overload\u8868\u793a\u7aef\u53e3\u591a\u8def\u590d\u7528<\/span><\/p>\n<p><span style=\"color: #0000ff;\">6\u3001\u5728ISP1\u7684\u76f8\u5e94\u7aef\u53e3\u4e0a\u542f\u7528NAT<\/span><\/p>\n<p>interface FastEthernet0\/0<br \/>\nip nat outside<\/p>\n<p>interface FastEthernet0\/1<br \/>\nip nat inside<\/p>\n<p><span style=\"color: #ff0000;\">\u81f3\u6b64\u5de6\u8fb9\u516c\u53f8\u5185\u7684\u4e3b\u673a\u5373\u53ef\u901a\u8fc7NAPT\u6280\u672f\u8bbf\u95ee\u5916\u90e8\u7f51\u7edc\u4e86\u3002<\/span><\/p>\n<p><span style=\"color: #0000ff;\">7\u3001\u5728ISP3\u4e0a\u914d\u7f6e\u5141\u8bb8\u901a\u8fc7NAPT\u6280\u672f\u8f6c\u6362\u7684\u4e3b\u673a\u8303\u56f4<\/span><\/p>\n<p>access-list 1 permit 172.16.1.0 0.0.0.255<\/p>\n<p><span style=\"color: #0000ff;\">8\u3001\u5728ISP3\u4e0a\u57fa\u4e8e\u5355\u4e2aIP\u5730\u5740(\u5373\u5355\u4e2a\u63a5\u53e3)\u914d\u7f6eNAPT<\/span><\/p>\n<p>ip nat inside source list 1 interface FastEthernet0\/1 overload<\/p>\n<p><span style=\"color: #0000ff;\">9\u3001\u5728ISP3\u4e0a\u4f7f\u7528\u9759\u6001\u7ed1\u5b9a\u6620\u5c04\u670d\u52a1\u5668\u768480\u7aef\u53e3<\/span><\/p>\n<p>ip nat inside source static tcp 172.16.1.1 80 200.200.200.2 80<\/p>\n<p><span style=\"color: #0000ff;\">10\u3001\u5728ISP3\u7684\u76f8\u5e94\u7aef\u53e3\u4e0a\u542f\u7528NAT<\/span><\/p>\n<p>interface FastEthernet0\/0<br \/>\nip nat inside<\/p>\n<p>interface FastEthernet0\/1<br \/>\nip nat outside<\/p>\n<p><span style=\"color: #ff0000;\">\u81f3\u6b64\u53f3\u8fb9\u516c\u53f8\u5185\u7684\u4e3b\u673a\u5373\u53ef\u901a\u8fc7NAPT\u6280\u672f\u8bbf\u95ee\u5916\u90e8\u7f51\u7edc\u4e86\uff0c\u5e76\u4e14\u5916\u90e8\u4e3b\u673a\u8bbf\u95eeISP3\u768480\u7aef\u53e3\u65f6\uff0c\u6570\u636e\u5305\u4f1a\u81ea\u52a8\u8f6c\u53d1\u5230\u5185\u90e8web\u670d\u52a1\u5668\u4e0a\u3002<\/span><\/p>\n<p><strong>\u5b9e\u9a8c\u6548\u679c\uff1a<\/strong><\/p>\n<p><span style=\"color: #0000ff;\">\u4f7f\u7528PC0(192.168.1.1)\u8bbf\u95ee\u53f3\u8fb9\u516c\u53f8\u7684Web\u670d\u52a1\u5668(200.200.200.2)\u768480\u7aef\u53e3<\/span><\/p>\n<p><span style=\"color: #0000ff;\">ISP1\uff1a<\/span><\/p>\n<p>IP NAT debugging is on<br \/>\nNAT: s=192.168.1.1-&gt;100.100.100.3, d=200.200.200.2 [19]<br \/>\nNAT*: s=200.200.200.2, d=100.100.100.3-&gt;192.168.1.1 [8]<br \/>\nNAT*: s=192.168.1.1-&gt;100.100.100.3, d=200.200.200.2 [20]<br \/>\nNAT*: s=192.168.1.1-&gt;100.100.100.3, d=200.200.200.2 [21]<br \/>\nNAT*: s=200.200.200.2, d=100.100.100.3-&gt;192.168.1.1 [9]<br \/>\nNAT*: s=192.168.1.1-&gt;100.100.100.3, d=200.200.200.2 [22]<br \/>\nNAT*: s=200.200.200.2, d=100.100.100.3-&gt;192.168.1.1 [10]<br \/>\nNAT*: s=192.168.1.1-&gt;100.100.100.3, d=200.200.200.2 [23]<\/p>\n<p>Router#sh ip nat tra<br \/>\nPro\u00a0 Inside global\u00a0\u00a0\u00a0\u00a0 Inside local\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Outside local\u00a0\u00a0\u00a0\u00a0\u00a0 Outside global<br \/>\ntcp 100.100.100.3:1025 192.168.1.1:1025\u00a0\u00a0 200.200.200.2:80\u00a0\u00a0 200.200.200.2:80<br \/>\ntcp 100.100.100.3:1026 192.168.1.1:1026\u00a0\u00a0 200.200.200.2:80\u00a0\u00a0 200.200.200.2:80<br \/>\ntcp 100.100.100.3:1027 192.168.1.1:1027\u00a0\u00a0 200.200.200.2:80\u00a0\u00a0 200.200.200.2:80<\/p>\n<p><span style=\"color: #0000ff;\">ISP3\uff1a<\/span><\/p>\n<p>IP NAT debugging is on<br \/>\nNAT: s=100.100.100.3, d=200.200.200.2-&gt;172.16.1.1 [19]<br \/>\nNAT*: s=172.16.1.1-&gt;200.200.200.2, d=100.100.100.3 [8]<br \/>\nNAT*: s=100.100.100.3, d=200.200.200.2-&gt;172.16.1.1 [20]<br \/>\nNAT*: s=100.100.100.3, d=200.200.200.2-&gt;172.16.1.1 [21]<br \/>\nNAT*: s=172.16.1.1-&gt;200.200.200.2, d=100.100.100.3 [9]<br \/>\nNAT*: s=100.100.100.3, d=200.200.200.2-&gt;172.16.1.1 [22]<br \/>\nNAT*: s=172.16.1.1-&gt;200.200.200.2, d=100.100.100.3 [10]<br \/>\nNAT*: s=100.100.100.3, d=200.200.200.2-&gt;172.16.1.1 [23]<\/p>\n<p>Router#sh ip nat tra<br \/>\nPro\u00a0 Inside global\u00a0\u00a0\u00a0\u00a0 Inside local\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Outside local\u00a0\u00a0\u00a0\u00a0\u00a0 Outside global<br \/>\ntcp 200.200.200.2:80\u00a0\u00a0 172.16.1.1:80\u00a0\u00a0\u00a0\u00a0\u00a0 ---\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ---<br \/>\ntcp 200.200.200.2:80\u00a0\u00a0 172.16.1.1:80\u00a0\u00a0\u00a0\u00a0\u00a0 100.100.100.3:1025 100.100.100.3:1025<br \/>\ntcp 200.200.200.2:80\u00a0\u00a0 172.16.1.1:80\u00a0\u00a0\u00a0\u00a0\u00a0 100.100.100.3:1026 100.100.100.3:1026<br \/>\ntcp 200.200.200.2:80\u00a0\u00a0 172.16.1.1:80\u00a0\u00a0\u00a0\u00a0\u00a0 100.100.100.3:1027 100.100.100.3:1027<\/p>\n<p><span style=\"color: #ff0000;\">\u7ed9\u51fa\u4e86debug\u4fe1\u606f\u53caNAT\u8f6c\u6362\u8868\uff0c\u8fc7\u7a0b\u5e94\u8be5\u5f88\u6e05\u6670\u4e86\u3002\u8fd8\u53ef\u4ee5\u770b\u5230ISP3\u7684NAT\u8f6c\u6362\u8868\u4e2d\u9759\u6001\u4fdd\u5b58\u4e86\u670d\u52a1\u566880\u7aef\u53e3\u4e0eISP3\u7684\u6620\u5c04\u5173\u7cfb\u3002<\/span><\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"http:\/\/www.slyar.com\/blog\">Slyar Home<\/a> &raquo; <a href=\"http:\/\/www.slyar.com\/blog\/cisco-napt-acl-portmap.html\">\u57fa\u4e8ecisco\u8def\u7531\u5668\u7684NAPT\u8f6c\u6362\u53ca\u670d\u52a1\u5668\u7aef\u53e3\u6620\u5c04\u5b9e\u9a8c<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a\u59dc\u5357(Slyar) \u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (www.slyar.com) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002 \u5b9e\u9a8c\u62d3\u6251\u56fe\u5982\u4e0b\uff0c\u7f51\u6bb5\u53caIP\u5730\u5740\u4e0d\u505a\u591a\u4f59\u4ecb\u7ecd\uff0c\u914d\u7f6e\u6a21\u5f0f\u53ca\u57fa\u672c\u547d\u4ee4\u4e0d\u505a\u591a\u4f59\u4ecb\u7ecd \u5b9e\u9a8c\u73af\u5883\u53ca\u5b9e\u9a8c\u76ee\u7684\uff1a 0\u3001\u6bcf\u4e2a\u7f51\u6bb5\u4e0a\uff0c\u5de6\u4fa7\u7aef\u53e3\u4e3aF0\/0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1104],"tags":[908,912],"class_list":["post-1370","post","type-post","status-publish","format-standard","hentry","category-computer-networks","tag-cisco","tag-912"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u57fa\u4e8ecisco\u8def\u7531\u5668\u7684NAPT\u8f6c\u6362\u53ca\u670d\u52a1\u5668\u7aef\u53e3\u6620\u5c04\u5b9e\u9a8c\uff0c\u5730\u5740\u6c60PAT\u6280\u672f\u53ca\u9759\u6001\u7aef\u53e3\u7ed1\u5b9a\u6280\u672f\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Slyar\"\/>\n\t<meta name=\"keywords\" content=\"slyar,cisco,napt,nat,pat,\u7aef\u53e3\u6620\u5c04,\u5730\u5740\u6c60,\u9759\u6001,acl,\u7aef\u53e3,\u670d\u52a1\u5668,\u5916\u7f51\" 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