{"id":139,"date":"2014-07-28T17:30:19","date_gmt":"2014-07-28T17:30:19","guid":{"rendered":""},"modified":"2014-07-28T17:30:19","modified_gmt":"2014-07-28T17:30:19","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=139","title":{"rendered":"[\u8f6c]wireshark\u6293\u5305\u56fe\u89e3TCP\u4e09\u6b21\u63e1\u624b\/\u56db\u6b21\u6325\u624b\u8be6\u89e3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/weizn.net\/?p=139\/#%E4%B8%80_TCPIP%E5%8D%8F%E8%AE%AE%E6%97%8F\" title=\"\n\t\u4e00.&nbsp;TCP\/IP\u534f\u8bae\u65cf \n\">\n\t\u4e00.&nbsp;TCP\/IP\u534f\u8bae\u65cf \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/weizn.net\/?p=139\/#%E4%BA%8C_TCP%E5%8D%8F%E8%AE%AE\" title=\"\n\t\u4e8c. TCP\u534f\u8bae \n\">\n\t\u4e8c. TCP\u534f\u8bae \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/weizn.net\/?p=139\/#%E4%B8%89_TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B\" title=\"\n\t\u4e09. TCP\u4e09\u6b21\u63e1\u624b \n\">\n\t\u4e09. TCP\u4e09\u6b21\u63e1\u624b \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/weizn.net\/?p=139\/#%E5%9B%9B_TCP%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B\" title=\"\n\t\u56db. TCP\u56db\u6b21\u6325\u624b \n\">\n\t\u56db. TCP\u56db\u6b21\u6325\u624b \n<\/a><\/li><\/ul><\/nav><\/div>\n<h3 style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:bolder 18px\/37px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\"><span class=\"ez-toc-section\" id=\"%E4%B8%80_TCPIP%E5%8D%8F%E8%AE%AE%E6%97%8F\"><\/span>\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;font-weight:bolder;\">\u4e00.&nbsp;TCP\/IP\u534f\u8bae\u65cf<\/span><br style=\"zoom:1;\" \/><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; TCP\/IP\u662f\u4e00\u4e2a\u534f\u8bae\u65cf\uff0c\u901a\u5e38\u5206\u4e0d\u540c\u5c42\u6b21\u8fdb\u884c\u5f00\u53d1\uff0c\u6bcf\u4e2a\u5c42\u6b21\u8d1f\u8d23\u4e0d\u540c\u7684\u901a\u4fe1\u529f\u80fd\u3002\u5305\u542b\u4ee5\u4e0b\u56db\u4e2a\u5c42\u6b21\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/c01b48856eb64b661b29240b3267f54720150728163919.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">1. \u94fe\u8def\u5c42\uff0c\u4e5f\u79f0\u4f5c\u6570\u636e\u94fe\u8def\u5c42\u6216\u8005\u7f51\u7edc\u63a5\u53e3\u5c42\uff0c\u901a\u5e38\u5305\u62ec\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u548c\u8ba1\u7b97\u673a\u4e2d\u5bf9\u5e94\u7684\u7f51\u7edc\u63a5\u53e3\u5361\u3002\u5b83\u4eec\u4e00\u8d77\u5904\u7406\u4e0e\u7535\u7f06\uff08\u6216\u5176\u4ed6\u4efb\u4f55\u4f20\u8f93\u5a92\u4ecb\uff09\u7684\u7269\u7406\u63a5\u53e3\u7ec6\u8282\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">2. \u7f51\u7edc\u5c42\uff0c\u4e5f\u79f0\u4f5c\u4e92\u8054\u7f51\u5c42\uff0c\u5904\u7406\u5206\u7ec4\u5728\u7f51\u7edc\u4e2d\u7684\u6d3b\u52a8\uff0c\u4f8b\u5982\u5206\u7ec4\u7684\u9009\u8def\u3002\u7f51\u7edc\u5c42\u534f\u8bae\u5305\u62ecIP\u534f\u8bae\uff08\u7f51\u9645\u534f\u8bae\uff09\u3001ICMP\u534f\u8bae\uff08Internet\u4e92\u8054\u7f51\u63a7\u5236\u62a5\u6587\u534f\u8bae\uff09\uff0c\u4ee5\u53caIGMP\u534f\u8bae\uff08Internet\u7ec4\u7ba1\u7406\u534f\u8bae\uff09\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">3. \u8fd0\u8f93\u5c42\u4e3b\u8981\u4e3a\u4e24\u53f0\u4e3b\u673a\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7aef\u5230\u7aef\u7684\u901a\u4fe1\u3002\u5728TCP\/IP\u534f\u8bae\u65cf\u4e2d\uff0c\u6709\u4e24\u4e2a\u4e92\u4e0d\u76f8\u540c\u7684\u4f20\u8f93\u534f\u8bae\uff1aTCP\uff08\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff09\u548cUDP\uff08\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae\uff09\u3002TCP\u4e3a\u4e24\u53f0\u4e3b\u673a\u63d0\u4f9b\u9ad8\u53ef\u9760\u6027\u7684\u6570\u636e\u901a\u4fe1\u3002\u4ed6\u6240\u4f5c\u7684\u5de5\u4f5c\u5305\u62ec\u628a\u5e94\u7528\u7a0b\u5e8f\u4ea4\u7ed9\u5b83\u7684\u6570\u636e\u5206\u6210\u5408\u9002\u7684\u5c0f\u5757\u4ea4\u7ed9\u4e0b\u9762\u7684\u7f51\u7edc\u5c42\uff0c\u786e\u8ba4\u63a5\u6536\u5230\u7684\u5206\u7ec4\uff0c\u8bbe\u7f6e\u53d1\u9001\u6700\u540e\u786e\u8ba4\u5206\u7ec4\u7684\u8d85\u65f6\u65f6\u949f\u7b49\u3002\u7531\u4e8e\u8fd0\u8f93\u5c42\u63d0\u4f9b\u4e86\u9ad8\u53ef\u9760\u6027\u7684\u7aef\u5230\u7aef\u901a\u4fe1\uff0c\u56e0\u6b64\u5e94\u7528\u5c42\u53ef\u4ee5\u5ffd\u7565\u6240\u6709\u8fd9\u4e9b\u7ec6\u8282\u3002\u800c\u53e6\u4e00\u65b9\u9762\uff0cUDP\u5219\u4e3a\u5e94\u7528\u5c42\u63d0\u4f9b\u4e00\u79cd\u975e\u5e38\u7b80\u5355\u7684\u670d\u52a1\u3002\u5b83\u53ea\u662f\u628a\u79f0\u4f5c\u6570\u636e\u62a5\u7684\u5206\u7ec4\u4ece\u4e00\u53f0\u4e3b\u673a\u53d1\u9001\u5230\u53e6\u4e00\u53f0\u4e3b\u673a\uff0c\u4f46\u5e76\u4e0d\u4fdd\u8bc1\u8be5\u6570\u636e\u62a5\u80fd\u5230\u8fbe\u53e6\u4e00\u7aef\u3002\u4efb\u4f55\u5fc5\u987b\u7684\u53ef\u9760\u6027\u5fc5\u987b\u7531\u5e94\u7528\u5c42\u6765\u63d0\u4f9b\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">4. \u5e94\u7528\u5c42\u8d1f\u8d23\u5904\u7406\u7279\u5b9a\u7684\u5e94\u7528\u7a0b\u5e8f\u7ec6\u8282\u3002\u5305\u62ecTelnet\uff08\u8fdc\u7a0b\u767b\u5f55\uff09\u3001<\/span><span style=\"line-height:2em;zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">FTP\uff08<\/span><span style=\"line-height:2em;zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\uff09\u3001<\/span><span style=\"line-height:2em;zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">SMTP\uff08<\/span><span style=\"line-height:2em;zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u7b80\u5355\u90ae\u4ef6\u4f20\u9001\u534f\u8bae\uff09\u4ee5\u53ca<\/span><span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">SNMP\uff08\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae\uff09\u7b49\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">wireshark\u6293\u5230\u7684\u5305\u4e0e\u5bf9\u5e94\u7684\u534f\u8bae\u5c42\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/43eb1e23f58350c337460680a540fac420150728163920.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">1. Frame:&nbsp;&nbsp;&nbsp;\u7269\u7406\u5c42\u7684\u6570\u636e\u5e27\u6982\u51b5<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">2. Ethernet&nbsp;II:&nbsp;\u6570\u636e\u94fe\u8def\u5c42\u4ee5\u592a\u7f51\u5e27\u5934\u90e8\u4fe1\u606f<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">3. Internet Protocol Version 4:&nbsp;\u4e92\u8054\u7f51\u5c42IP\u5305\u5934\u90e8\u4fe1\u606f<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">4. Transmission Control Protocol:&nbsp;&nbsp;\u4f20\u8f93\u5c42\u7684\u6570\u636e\u6bb5\u5934\u90e8\u4fe1\u606f\uff0c\u6b64\u5904\u662fTCP<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">5. Hypertext Transfer Protocol:&nbsp;&nbsp;\u5e94\u7528\u5c42\u7684\u4fe1\u606f\uff0c\u6b64\u5904\u662fHTTP\u534f\u8bae<\/span>\n<\/p>\n<h3 style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:bolder 18px\/37px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\"><span class=\"ez-toc-section\" id=\"%E4%BA%8C_TCP%E5%8D%8F%E8%AE%AE\"><\/span>\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u4e8c. TCP\u534f\u8bae<\/span><br style=\"zoom:1;\" \/><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; TCP\u662f\u4e00\u79cd\u9762\u5411\u8fde\u63a5\uff08\u8fde\u63a5\u5bfc\u5411\uff09\u7684\u3001\u53ef\u9760\u7684\u57fa\u4e8e\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u901a\u4fe1\u534f\u8bae\u3002TCP\u5c06\u7528\u6237\u6570\u636e\u6253\u5305\u6210\u62a5\u6587\u6bb5\uff0c\u5b83\u53d1\u9001\u540e\u542f\u52a8\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u53e6\u4e00\u7aef\u6536\u5230\u7684\u6570\u636e\u8fdb\u884c\u786e\u8ba4\u3001\u5bf9\u5931\u5e8f\u7684\u6570\u636e\u91cd\u65b0\u6392\u5e8f\u3001\u4e22\u5f03\u91cd\u590d\u6570\u636e\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; TCP\u7684\u7279\u70b9\u6709\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">1. TCP\u662f\u9762\u5411\u8fde\u63a5\u7684\u8fd0\u8f93\u5c42\u534f\u8bae<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">2. \u6bcf\u4e00\u6761TCP\u8fde\u63a5\u53ea\u80fd\u6709\u4e24\u4e2a\u7aef\u70b9\uff0c\u6bcf\u4e00\u6761TCP\u8fde\u63a5\u53ea\u80fd\u662f\u70b9\u5bf9\u70b9\u7684<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">3. TCP\u63d0\u4f9b\u53ef\u9760\u4ea4\u4ed8\u7684\u670d\u52a1<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">4. TCP\u63d0\u4f9b\u5168\u53cc\u5de5\u901a\u4fe1\u3002\u6570\u636e\u5728\u4e24\u4e2a\u65b9\u5411\u4e0a\u72ec\u7acb\u7684\u8fdb\u884c\u4f20\u8f93\u3002\u56e0\u6b64\uff0c\u8fde\u63a5\u7684\u6bcf\u4e00\u7aef\u5fc5\u987b\u4fdd\u6301\u6bcf\u4e2a\u65b9\u5411\u4e0a\u7684\u4f20\u8f93\u6570\u636e\u5e8f\u53f7\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">5. \u9762\u5411\u5b57\u8282\u6d41\u3002\u9762\u5411\u5b57\u8282\u6d41\u7684\u542b\u4e49\uff1a\u867d\u7136\u5e94\u7528\u7a0b\u5e8f\u548cTCP\u4ea4\u4e92\u662f\u4e00\u6b21\u4e00\u4e2a\u6570\u636e\u5757\uff0c\u4f46TCP\u628a\u5e94\u7528\u7a0b\u5e8f\u4ea4\u4e0b\u6765\u7684\u6570\u636e\u4ec5\u4ec5\u662f\u4e00\u8fde\u4e32\u7684\u65e0\u7ed3\u6784\u7684\u5b57\u8282\u6d41<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; TCP\u62a5\u6587\u9996\u90e8\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:14px\/25px Verdana, Geneva, sans-serif, \u5fae\u8f6f\u96c5\u9ed1, Tahoma, Helvetica, Arial, SimSun, sans-serif;white-space:normal;color:#444444;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/144c5485d60b42b9996ef4471088031820150728163921.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">1. \u6e90\u7aef\u53e3\u53f7\uff1a\u6570\u636e\u53d1\u8d77\u8005\u7684\u7aef\u53e3\u53f7\uff0c16bit<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">2. \u76ee\u7684\u7aef\u53e3\u53f7\uff1a\u6570\u636e\u63a5\u6536\u8005\u7684\u7aef\u53e3\u53f7\uff0c16bit<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">3. \u5e8f\u53f7\uff1a32bit\u7684\u5e8f\u5217\u53f7\uff0c\u7531\u53d1\u9001\u65b9\u4f7f\u7528<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">4. \u786e\u8ba4\u5e8f\u53f7\uff1a32bit\u7684\u786e\u8ba4\u53f7\uff0c\u662f\u63a5\u6536\u6570\u636e\u65b9\u671f\u671b\u6536\u5230\u53d1\u9001\u65b9\u7684\u4e0b\u4e00\u4e2a\u62a5\u6587\u6bb5\u7684\u5e8f\u53f7\uff0c\u56e0\u6b64\u786e\u8ba4\u5e8f\u53f7\u5e94\u5f53\u662f\u4e0a\u6b21\u5df2\u6210\u529f\u6536\u5230\u6570\u636e\u5b57\u8282\u5e8f\u53f7\u52a01\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">5. \u9996\u90e8\u957f\u5ea6\uff1a\u9996\u90e8\u4e2d32bit\u5b57\u7684\u6570\u76ee\uff0c\u53ef\u8868\u793a15*32bit=60\u5b57\u8282\u7684\u9996\u90e8\u3002\u4e00\u822c\u9996\u90e8\u957f\u5ea6\u4e3a20\u5b57\u8282\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">6. \u4fdd\u7559\uff1a6bit, \u5747\u4e3a0<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">7. \u7d27\u6025URG\uff1a\u5f53URG=1\u65f6\uff0c\u8868\u793a\u62a5\u6587\u6bb5\u4e2d\u6709\u7d27\u6025\u6570\u636e\uff0c\u5e94\u5c3d\u5feb\u4f20\u9001\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">8. \u786e\u8ba4\u6bd4\u7279ACK\uff1aACK = 1\u65f6\u4ee3\u8868\u8fd9\u662f\u4e00\u4e2a\u786e\u8ba4\u7684TCP\u5305\uff0c\u53d6\u503c0\u5219\u4e0d\u662f\u786e\u8ba4\u5305\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">9. \u63a8\u9001\u6bd4\u7279PSH\uff1a\u5f53\u53d1\u9001\u7aefPSH=1\u65f6\uff0c\u63a5\u6536\u7aef\u5c3d\u5feb\u7684\u4ea4\u4ed8\u7ed9\u5e94\u7528\u8fdb\u7a0b\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">10. \u590d\u4f4d\u6bd4\u7279\uff08RST\uff09\uff1a\u5f53RST=1\u65f6\uff0c\u8868\u660eTCP\u8fde\u63a5\u4e2d\u51fa\u73b0\u4e25\u91cd\u5dee\u9519\uff0c\u5fc5\u987b\u91ca\u653e\u8fde\u63a5\uff0c\u518d\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">11. \u540c\u6b65\u6bd4\u7279SYN\uff1a\u5728\u5efa\u7acb\u8fde\u63a5\u662f\u7528\u6765\u540c\u6b65\u5e8f\u53f7\u3002SYN=1\uff0c ACK=0\u8868\u793a\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u62a5\u6587\u6bb5\u3002SYN=1\uff0cACK=1\u8868\u793a\u540c\u610f\u5efa\u7acb\u8fde\u63a5\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">12. \u7ec8\u6b62\u6bd4\u7279FIN\uff1aFIN=1\u65f6\uff0c\u8868\u660e\u6b64\u62a5\u6587\u6bb5\u7684\u53d1\u9001\u7aef\u7684\u6570\u636e\u5df2\u7ecf\u53d1\u9001\u5b8c\u6bd5\uff0c\u5e76\u8981\u6c42\u91ca\u653e\u4f20\u8f93\u8fde\u63a5\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">13. \u7a97\u53e3\uff1a\u7528\u6765\u63a7\u5236\u5bf9\u65b9\u53d1\u9001\u7684\u6570\u636e\u91cf\uff0c\u901a\u77e5\u53d1\u653e\u5df2\u786e\u5b9a\u7684\u53d1\u9001\u7a97\u53e3\u4e0a\u9650\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">14. \u68c0\u9a8c\u548c\uff1a\u8be5\u5b57\u6bb5\u68c0\u9a8c\u7684\u8303\u56f4\u5305\u62ec\u9996\u90e8\u548c\u6570\u636e\u8fd9\u4e24\u90e8\u5206\u3002\u7531\u53d1\u7aef\u8ba1\u7b97\u548c\u5b58\u50a8\uff0c\u5e76\u7531\u6536\u7aef\u8fdb\u884c\u9a8c\u8bc1\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">15. \u7d27\u6025\u6307\u9488\uff1a\u7d27\u6025\u6307\u9488\u5728URG=1\u65f6\u624d\u6709\u6548\uff0c\u5b83\u6307\u51fa\u672c\u62a5\u6587\u6bb5\u4e2d\u7684\u7d27\u6025\u6570\u636e\u7684\u5b57\u8282\u6570\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">16. \u9009\u9879\uff1a\u957f\u5ea6\u53ef\u53d8\uff0c\u6700\u957f\u53ef\u8fbe40\u5b57\u8282<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">wireshark\u6355\u83b7\u5230\u7684TCP\u5305\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bb5\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span>\n<\/p>\n<div style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:14px\/25px Verdana, Geneva, sans-serif, \u5fae\u8f6f\u96c5\u9ed1, Tahoma, Helvetica, Arial, SimSun, sans-serif;white-space:normal;color:#444444;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n<\/div>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/4e49e0030a325c2356a3ac24eb234fa720150728163928.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<h3 style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:bolder 18px\/37px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\"><span class=\"ez-toc-section\" id=\"%E4%B8%89_TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B\"><\/span>\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u4e09. TCP\u4e09\u6b21\u63e1\u624b<\/span><br style=\"zoom:1;\" \/><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; &nbsp;TCP\u5efa\u7acb\u8fde\u63a5\u65f6\uff0c\u4f1a\u6709\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0cwireshark\u622a\u83b7\u5230\u4e86\u4e09\u6b21\u63e1\u624b\u7684\u4e09\u4e2a\u6570\u636e\u5305\u3002\u7b2c\u56db\u4e2a\u5305\u624d\u662fhttp\u7684\uff0c\u8bf4\u660ehttp\u7684\u786e\u662f\u4f7f\u7528TCP\u5efa\u7acb\u8fde\u63a5\u7684\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:14px\/25px Verdana, Geneva, sans-serif, \u5fae\u8f6f\u96c5\u9ed1, Tahoma, Helvetica, Arial, SimSun, sans-serif;white-space:normal;color:#444444;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/d5287b2f8e0c48680a1d016640011f0520150728163929.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/a8bf8c16bbe0d97e6baa184d3505492220150728163930.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u4e0b\u9762\u6765\u9010\u6b65\u5206\u6790\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u7b2c\u4e00\u6b21\u63e1\u624b\uff1a\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42\u5305\uff0c\u6807\u5fd7\u4f4dSYN\uff08\u540c\u6b65\u5e8f\u53f7\uff09\u7f6e\u4e3a1\uff0c\u5e8f\u53f7\u4e3aX=0<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/8fd00a6d287f90e0a0a39b18d643ff8a20150728163931.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/146ad8362f751c1aabd076769c354d1d20150728163932.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"line-height:32px;background-color:#ffffff;zoom:1;font-family:'Microsoft YaHei';color:#333333;font-size:16px;\">\u7b2c\u4e8c\u6b21\u63e1\u624b\uff1a\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u53d1\u8fc7\u6765\u62a5\u6587\uff0c\u7531SYN=1\u77e5\u9053\u5ba2\u6237\u7aef\u8981\u6c42\u5efa\u7acb\u8054\u673a\u3002\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aSYN\u548cACK\u90fd\u7f6e\u4e3a1\u7684TCP\u62a5\u6587\uff0c\u8bbe\u7f6e\u521d\u59cb\u5e8f\u53f7Y=0\uff0c\u5c06\u786e\u8ba4\u5e8f\u53f7(Acknowledgement Number)\u8bbe\u7f6e\u4e3a\u5ba2\u6237\u7684\u5e8f\u5217\u53f7\u52a01\uff0c\u5373X+1 = 0+1=1, \u5982\u4e0b\u56fe\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/9954d56db15be59f2cf54e21b868f47d20150728163935.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/50dd6bb61de8abd24762b76f7348a0db20150728163939.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"line-height:32px;background-color:#ffffff;zoom:1;font-family:'Microsoft YaHei';color:#333333;font-size:16px;\">\u7b2c\u4e09\u6b21\u63e1\u624b\uff1a\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u5668\u53d1\u6765\u7684\u5305\u540e\u68c0\u67e5\u786e\u8ba4\u5e8f\u53f7(Acknowledgement Number)\u662f\u5426\u6b63\u786e\uff0c\u5373\u7b2c\u4e00\u6b21\u53d1\u9001\u7684\u5e8f\u53f7\u52a01\uff08X+1=1\uff09\u3002\u4ee5\u53ca\u6807\u5fd7\u4f4dACK\u662f\u5426\u4e3a1\u3002\u82e5\u6b63\u786e\uff0c\u670d\u52a1\u5668\u518d\u6b21\u53d1\u9001\u786e\u8ba4\u5305\uff0cACK\u6807\u5fd7\u4f4d\u4e3a1\uff0cSYN\u6807\u5fd7\u4f4d\u4e3a0\u3002\u786e\u8ba4\u5e8f\u53f7(Acknowledgement Number)=Y+1=0+1=1\uff0c\u53d1\u9001\u5e8f\u53f7\u4e3aX+1=1\u3002\u5ba2\u6237\u7aef\u6536\u5230\u540e\u786e\u8ba4\u5e8f\u53f7\u503c\u4e0eACK=1\u5219\u8fde\u63a5\u5efa\u7acb\u6210\u529f\uff0c\u53ef\u4ee5\u4f20\u9001\u6570\u636e\u4e86\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/ea8a2de210e36111d50c163e35b5e71820150728163941.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/01245fe65fa90019124f61ec8b33b46c20150728164152.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<h3 style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:bolder 18px\/37px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\"><span class=\"ez-toc-section\" id=\"%E5%9B%9B_TCP%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B\"><\/span>\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u56db. TCP\u56db\u6b21\u6325\u624b<\/span><br style=\"zoom:1;\" \/><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; &nbsp;TCP\u65ad\u5f00\u8fde\u63a5\u65f6\uff0c\u4f1a\u6709\u56db\u6b21\u6325\u624b\u8fc7\u7a0b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0cwireshark\u622a\u83b7\u5230\u4e86\u56db\u6b21\u6325\u624b\u7684\u56db\u4e2a\u6570\u636e\u5305\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/8a778289a1e454f6fb624ab361414f0b20150728164153.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/2c40dcb6857cccffec62a9b42270320420150728164155.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u4e0b\u9762\u6765\u9010\u6b65\u5206\u6790\u56db\u6b21\u6325\u624b\u8fc7\u7a0b\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">\u7b2c\u4e00\u6b21\u6325\u624b\uff1a\u5ba2\u6237\u7aef\u7ed9\u670d\u52a1\u5668\u53d1\u9001TCP\u5305\uff0c\u7528\u6765\u5173\u95ed\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7684\u6570\u636e\u4f20\u9001\u3002\u5c06\u6807\u5fd7\u4f4dFIN\u548cACK\u7f6e\u4e3a1\uff0c\u5e8f\u53f7\u4e3aX=1\uff0c\u786e\u8ba4\u5e8f\u53f7\u4e3aZ=1\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/5623cdbf2be7ebb144b024dcb536216a20150728164206.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/e9110f010946129b287fc594005d3d1e20150728164207.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"line-height:32px;background-color:#ffffff;zoom:1;font-family:'Microsoft YaHei';color:#333333;font-size:16px;\">\u670d\u52a1\u5668\u6536\u5230FIN\u540e\uff0c\u53d1\u56de\u4e00\u4e2aACK(\u6807\u5fd7\u4f4dACK=1),\u786e\u8ba4\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u5e8f\u53f7\u52a01\uff0c\u5373X=X+1=2\u3002\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u786e\u8ba4\u5e8f\u53f7=Z\u3002<\/span><span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\"><\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/494bef54492ae0f0c21710a27772156c20150728164210.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/29e43f6a26b04beaaf7897b5c070c5c120150728164211.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"line-height:32px;background-color:#ffffff;zoom:1;font-family:'Microsoft YaHei';color:#333333;font-size:16px;\">\u670d\u52a1\u5668\u5173\u95ed\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\uff0c\u53d1\u9001\u4e00\u4e2aFIN\u3002\u6807\u5fd7\u4f4dFIN\u548cACK\u7f6e\u4e3a1\uff0c\u5e8f\u53f7\u4e3aY=1\uff0c\u786e\u8ba4\u5e8f\u53f7\u4e3aX=2\u3002<\/span><span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\"><\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/812bd476b46f36ff24bf779f4db9b48b20150728164217.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/19f5061697547fc6454dc3223d2fe5b320150728164217.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"line-height:32px;background-color:#ffffff;zoom:1;font-family:'Microsoft YaHei';color:#333333;font-size:16px;\">\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u5668\u53d1\u9001\u7684FIN\u4e4b\u540e\uff0c\u53d1\u56deACK\u786e\u8ba4(\u6807\u5fd7\u4f4dACK=1),\u786e\u8ba4\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u5e8f\u53f7\u52a01\uff0c\u5373Y+1=2\u3002\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u786e\u8ba4\u5e8f\u53f7X=2\u3002<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/d4f384d33803338f20550ce3fe02228d20150728164223.jpg\" data-bd-imgshare-binded=\"1\" \/>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\"><\/span><img decoding=\"async\" style=\"border-bottom:#dddddd 1px solid;border-left:#dddddd 1px solid;padding-bottom:3px;margin:10px 0px;padding-left:3px;padding-right:3px;zoom:1;max-width:100%;background:#eceef1 0px 0px;height:auto;border-top:#dddddd 1px solid;border-right:#dddddd 1px solid;padding-top:3px;\" alt=\"\" src=\"http:\/\/www.weizn.net\/content\/uploadfile\/201507\/a32c0561864a0e85d74e6603111084f420150728164228.jpg\" data-bd-imgshare-binded=\"1\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<h3 style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:bolder 18px\/37px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;font-weight:bolder;\">\u4e00.&nbsp;TCP\/IP\u534f\u8bae\u65cf<\/span><br style=\"zoom:1;\" \/><br \/>\n<\/h3>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', \u5fae\u8f6f\u96c5\u9ed1;white-space:normal;color:#333333;word-spacing:0px;padding-top:0px;-webkit-text-stroke-width:0px;\">\n\t<span style=\"zoom:1;font-family:'Microsoft YaHei';font-size:16px;\">&nbsp; &nbsp; &nbsp; TCP\/IP\u662f\u4e00\u4e2a\u534f\u8bae\u65cf\uff0c\u901a\u5e38\u5206\u4e0d\u540c\u5c42\u6b21\u8fdb\u884c\u5f00\u53d1\uff0c\u6bcf\u4e2a\u5c42\u6b21\u8d1f\u8d23\u4e0d\u540c\u7684\u901a\u4fe1\u529f\u80fd\u3002\u5305\u542b\u4ee5\u4e0b\u56db\u4e2a\u5c42\u6b21\uff1a<\/span>\n<\/p>\n<p style=\"padding-bottom:0px;widows:1;text-transform:none;background-color:#f6f6f6;text-indent:0px;margin:0px 0px 10px;padding-left:0px;letter-spacing:normal;padding-right:0px;zoom:1;font:16px\/25px 'Microsoft Yahei', 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