Sichuan Unicom VPN Service System, Design And Realization Of Application For An Enterprise

With the increasing of information interchange and disposition between different enterprises in our country, many enterprises have built their own Virtual Private Network on the public internet workplace adopting security, reliable and cheap tunnel technology. With many integrated services, Unicom set up service organizations specially to supply a VPN internet service of good quality in order to meet the market demands.As a technician in the data department of Si Chuan Unicom, I participated in the work of Virtual Private Network building and exploiture of data increment service of Si Chuan Unicom service system and a Si Chuan company. This article is a summary of the work.The article analysed the specialty and technical superority of VPN and constitutes , correlative protocol and technology of realization of VPN. A relatively security, reliable Virtual Private Network_and implementary plan was designed to meet the demands of data traffic, security of information transmission, transmission of video frequency, IP telephone, OA of companies. The design applied VPN and realized data increment service, for example, transimission of video frequency, IP telephone and OA and so on. These projects gained good economic and social utilityfor Si Chuan Unicom.