Abstract: As a result of extensive application of Internet/Intranet technology in the information system of the enterprise, the information of social and more and more sharpening problems of network security and information secrecy. This paper gives a resolving scheme of Virtual Private Network(VPN) security gateway with firewall and network encryption technology, based on IP Security(IPSec) protocol and VPN technology, it gives a design of main software module, and a deep analysis is made into the application of the scheme.

Key words: Virtual Private Network(VPN), IP security protocol, tunneling technology, encryption and decryption technology

摘要： 随着Internet技术在各行业信息系统中的广泛应用，企业内部网络和应用系统的安全保密问题日益突出。在研究IP安全协议和虚拟专用网(VPN)技术的基础上，提出一种集防火墙技术和网络加密技术于一体的VPN安全网关的设计方案，给出主要软件模块的设计，对安全网关在实际应用系统中的应用模式进行了分析。

关键词: 虚拟专用网, IP安全协议, 隧道技术, 加解密技术

CLC Number: 

• TP309