Based On The System Firewall Security Virtual Private Network (svpn)

Security Virtual Private Network (SVPN) constructs an encryption tunnel over public network to help corporations to work harmoniously with each other. Firstly the thesis fully discusses the foundation of information security. Then VPN technologies based IPsec, which are an important standard service in IETF draft, are described. The system of SVPN is then designed and implemented according to IPsec specification.The thesis consists of five parts:· The concept of information security : goal, infrastructure and methodology;· The technologies of information security : authentication, authorization, access control and encryption;· The architecture of SVPN------To introduce the architecture, functions,technologies and important components for SVPN that supports security among public network.· To describes the design for SVPN system.· To give the implementation of SVPN device.