Vpn Virtual Private Network Service Enterprises In Human Resource Applications

The VPN (Virtual Private Network) offers temporary and safe link through a public Network, usually refer to Internet, which is feature for its safety and stability comparing with the disorder of the later one. It is usually the expansion of an enterprise's Intranet, with which can setup safety-reliable links between the Intranet and remote users, branches, business partners and suppliers. Furthermore, the safety of the data transmission is available simultaneously.The report aims at the explanation of the application of the VPN. VPN is mainly applied for following situations: Firstly, the internal users and branches of the enterprise are located in large range of district with high level of distance separation. In that case, the enterprise needs Intranet expansion for remote access and LAN (Local Area Network)connection. This is typically for multi-national and multi-district enterprises. Secondly, the staff setup the virtual network by remote dialing through public network in order to meet the needs of remote office and home office". The third application is the connection among the enterprises. Technologically, VPN offer the safe virtual network for enterprises, cooperation partners, customers and suppliers, which can ensure both the effective information service to customers and partners and the safety issue of its Intranet.The report describe the proposal for the VPN application in shanghai foreign service company. This kind of enterprise needs VPN to make sure the efficient and economic link between the headquarter and branches so as the mobile and home users' accesses to the Intranet through Internet; Different applications of enterprise's internal system with the requirements of high level of reliability and safety; safe RSA SecurID Authentication for mobile users accesses in case of being hacked by illegal users.According to pratical using, IPSEC VPN is chosen for system design after the comparison among 3 kinds of VPN as well as the corresponding products. A series products of Contivity VPN switch of Nortel networks company was chosen for this proposal. According to the designed structure, the headquarter and branches will use Contivity VPN switch equipment respectively. Each branch will receive a set of password by headquater's arrangement and those passwords will be confirmed with switch of headquarter through Internet using encryption protocol and then set the IPSec VPN virtual channel. The management of this channel is directed by headquarter.This proposal has interact with RSA SecurlD Authentication with the high level of safety in order for mobile users' Authentication.In conclusion, VPN is a high efficiency, low cost, safe and also reliable solution for remote access and network connection, which integrates flexibility, safety, economic and Extensibility issues. In that case, it can fully meet the needs of the communication of both the branches of enterprises and safety remote office. VPN can ensure the confidentialness for the data communication between VPN client side and VPN gateway. Furthermore, safe, functionally stable Authentication VPN is also easy for using and management. Thus, higher level of safety is available towards very lower investment and finally leads to the guarantee for enterprise's Intranet.