Northeast Securities Co., Ltd Vpn Scheme Design And Research

With the development of Internet Techonology, the security of the net becomes more and more importment, leading to kinds of security technology. The virtual private network(VPN) can reach the goal of confidentiality, integrity and availability, making it the most important and popular security teconology.At the beginning, this article introduces the popular firewall techonoly, including the current state of this techology and the main function of most common firewall. In the following parts this artile discusses two of the most popular VPN technology, L2tp VPN and the IPSec VPN. By analyzing the packets and the protocols, the article gives us the full view of the two technologies, and make sure the success the program.In the last parts of this article, we introduce the VPN program of NESC in detail, for example, the need of the customer, the design of the scheme, the network plan, and the configuration of the equipment. In the end, this article gives overview of the reliability and the maintainability of the scheme, implementing the accomplishment of the program.