动态网络环境下建立VPN的安全动态隧道机制
Secure and Dynamic Tunneling Mechanism of Construction VPN in Dynamic Network
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摘要: 随着多种接入方式的出现,许多局域网接入公共网络采用了动态地址的连接,静态配置的虚拟专用网(VPN)便不再适用.本文研究了动态网络环境下如何交换信息、建立VPN.提出了安全动态隧道机制,定义了动态建立隧道的报文格式,解决了上述问题,并进一步增加了加密认证和抗重播攻击的功能,避免引入的安全隐患.经实验证明,该机制可以安全有效地在动态网络环境下建立VPN.Abstract: As emergence of several access methods, many LANs use access of dynamic IP address. Virtual Private Network（VPN）of static configuration is not applicable. Thus, how to exchange information, construct VPN in dynamic network is indicated as new question for research. A secure and dynamic tunneling mechanism is presented. And message of this mechanism is defined. This mechanism can solve above mentioned issue. Authentication and anti-replay function are introduced to avoid secure problems. The result of experiment shows that this mechanism can construct VPN securely and efficiently in dynamic network.
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