| With the development of economy, the special connection method based on a fixed office location has been difficult to meet the needs of the modern enterprise. Enterprises now have higher expectations on their own network' s flexibility, security, economic, and other aspects of scalability. Traditional Virtual Private Dial-up Network(VPDN) is making use of Public Network to dial into Virtual Private Network, providing access service for the mobile office staffs of enterprise. Along with the diversification of business users, subscribers have uncertainty of the time and place at any time in Enterprise Network Access, and have increasingly strong demand on Wireless VPDN. CDMA IX VPDN of China Unicom Ltd. can provide high-speed data service for mobile subscriber. And its highest rate of 153. 6Kbit/s provides a convenient and speedy wireless Internet access solution for mobile subscribers of enterprise.CDMA 1X VPDN service is base on CDMA 1X Packet Data Service Network(PDSN), and it establishes Virtual Private Network(VPN) for the enterprise Through the establishment of Layer 2 Tunneling Protocol (L2TP). Enterprise users outside can dial into the VPN with the wireless Network Cards and PC regardless of where they roam. This paper discusses how to achieve VPDN base on the CDMA 1X VPDN, conducting a study and practice on structure of CDMA 1X PDSN and business process and implementation of CDMA 1X VPDN.The paper is divided into five chapters. The first chapter describes the background of the item and project' s main work; the second chapter describes the development of VPN and key technologies; the third chapter describers the network security technology involved in the project; the fourth chapter describes the basic principles of the PDSN; chapter 5 introduces the network structure of PDSN and how to visit the Billing System through CDMA 1X VPDN, including IP Address of the PDSN network equipment and relevant configuration of the major equipment. |
PDF Full Text Request