IPsec穿越NAT浅析.doc

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1、IPsec穿越NAT浅析上海博达公司数据通信有限公司2010年11月上海博达数据通信有限公司SHANGHAIBAUDDATACOMMUNICATIONCO.,LTD版本主要作者版本描述完成日期1.0.0闻凯华IPsec穿越NAT浅析2010-11-241概述............................................................................................................................................

2、...........................22技术介绍...............................................................................................................................................................22.1IPsec和NAT之间的存在的矛盾........................................................

3、....................................................22.2.ESP报文结构..........................................................................................................................................32.3.端口NAT流程.......................................................

4、...............................................................................32.4.检测NAT设备.......................................................................................................................................32.5.NAT穿越.................................

5、.................................................................................................................42.6.NATKeepalives......................................................................................................................................42.7

6、.两个Lifetime..........................................................................................................................................53......................................................................................................................

7、............................................................典型配置......................................................................................................................................................................53.1典型配置示例（对应老版本IPsec模块）...............

8、...............................................................................53.1」组网需求：............................