Research-based Ipsec Vpn Network And Its Sa

The rapid development and application of the Internet carries tremendous commercial interests to service provider, and also brings greater challenges. Because of more and more abundant types of network applications, how to protect user's information security in the complex network environment has become hot research recently. Virtual Private Network (VPN) provides user's private network's experience on a shared network, meanwhile further protects the users'information security. Especially the IPSec VPN, with the set of sophisticated encryption and decryption mechanism, effectively protect the security of the data packets. In this article we will study the principles and specific implementation of it.This article describes the basic knowledge and theory related of IPSec VPN encryption technology. Introduction the hardware platform and software architecture of the firewall brief. Also describes specific methods for achieving SA which called IKE. Finally, through building specific scenarios, Experimental test data, Verify the performance of IPSec VPN on the device.This article provides a theoretical reference and technical support for the development of VPN technology. Provide reference for future research and development, which has important scientific significance. At the same time this topic is based on the practical application of project. so there is an urgent need, especially in the IKE application on the firewall. Firewall products at home and abroad are now under development, technology is not yet mature. And the Association of International Standardization is also in the process of improving standards. This is conducive to various enterprises to patent and development product. It's also great significance for take advantage of the industry. Therefore, the application has significant value and prospect worthy of further study.