Research On Virtual Private Network(VPN) Technology & VPN Access Mode For Large Commercial Banks

In the Internet Age,to interconnetct securely through public, convenience and cheap Internet is a important issue on researching and engineering.The Vitual Private Network(VPN) as very new network technology system,is developing rapidly and applied widely.This page introduced the principle and mechanism of three VPN technology:MPLS VPN,IPSec VPN and SSL VPN,on the other hand, from the perspective of three applications for a variety of technical perspective comparisons and analysis, providing users with a view to provide better solutions to the theoretical foundation. It could be the good theory guide for user solutions.It also concern about state's acts,regulations on information security and ciper. As an application example is a large commercial banks mobile office proposals.For MPLS VPN,it describe the principle of the label,label switching and label distributing,and point out the fact that initial purpose of MPLS,to switch faster using fixed length labels is replaced by building user's virtual private networks on MPLS backbone,and how the MPLS VPN works .For IPSec VPN,it describle the IPSec system on the structure: Authentication Header(AH), Encapsulating Security Payload(ESP), Internet Key Exchange (IKE),it analyse how the IPSec system ensure security and show the mode of builing IPSec VPNs,analyse the vantage and disadvantage of IPSec VPN.VPN concerned code research systematically research on the acts,code, regulation of NPC,State council and administrations.The No.273 code of the State Coucil commercial cipher administrative statute,is directly related code .The research may give good guide the implementation of the project.Mobile office on Internet solution for a large commercial bank.It joint the bank's requirement,current environment and current VPN technology together.It Proposed the framework of IPSec VPNs,single Internet access,unique user CA and 2-level users approving .