基于CDMA1X的VPDN在企业接入技术的应用

【作者】 傅芳；

【导师】 杨路明；

【作者基本信息】 中南大学 ， 软件工程， 2005， 硕士

【摘要】 VPDN(Virtual Private Dialup Networks)是基于拨号用户的虚拟专用拨号网业务,利用IP网络的承载功能,结合相应的认证和授权机制,可以建立安全的虚拟专用网络。 凭借CDMA1X高速分组数据网络为承载网,建立起的VPDN企业级接入专网,将为公司、银行、公安、医疗等企业用户,提供随时随地的快速、安全、方便的企业专网访问,这不仅为企业用户带来运营成本的缩减,也为运营商带来了新的利润增长点。 本文作者根据湖南联通CDMA1X网络现状,收集了众多企业单位组建VPDN的需求,进行了分析归类后,最终确立提出了适合于湖南联通CDMA1X VPDN企业接入的四类安全、可靠、合理、可行的接入技术,即无线公网接入技术、长途专线接入技术、专线接入联通互联网165技术、无线MPLS VPN接入技术,并利用提出的四类接入技术建立了湖南联通CDMA1X的VPDN接入平台。在论文中对四类基于CDMA1X的VPDN企业级接入技术从协议方式、安全性、企业网关地址、企业用户地址分配、接入技术条什、移动漫游性几方面进行了全面的比较,同时将搭建湖南联通CDMA1X VPDN接入平台中所进行的关键性配置编写入了论文中。为了更好地对实际VPDN企业级接入起到指导作用,在论文中还编写了平台接入时经常会遇到的配置错误问题和问题定位办法。同时通过几个应用实例,详细介绍了VPDN接入实施方案和接入实施过程及关键性配置,并以界面形式将实际用户接入访问过程演示出来了。 目前,湖南联通基于CDMA1X的VPDN企业级接入业务正转入业务实验阶段。在实验中也发现了一些的问题,本文对可能出现和存在的VPDN接入的安全性问题,提出了一些相应的解决方案。更多还原

【Abstract】 The VPDN (Virtual Private Dialup Networks) technology, which is based on the dialup customers, provides a specialized, secure solution to consolidate virtual networks and services. The technology exploits the IP networks’ supporting function and takes advantage of the corresponding authentication and authorization.Rely on CDMA1X fast packet data network, we sets up a virtual private network of VPDN for enterprise to access Internat at a high speed, such as enterprise like bank ,government, public security, medical treatment and so on.This network is able to offer fast, safe , convenient special network for enterprise whenever and wherever possibly to visit. Not only it brings the reduction of the operation cost for enterprise’s users .but also it brings the new point of growth of profit to the operator.According to Hunan UNICOM ’s CDMA1X network current situation, the author has collected a great deal of demands for setting up enterprise’s VPDN. After analysing and summing up those demans, the author finally has set up and put forward four kinds of safe , reliable , rational , feasible access technologies which is suitable for CDMA1X VPDN of enterprises of Hunan UNICOM .These access technologies are namely included about wireless common network access technology , long-distance private line access technology , private line connect to Internet for 165 access technology and wireless MPLS VPN access technology,and utilize these four kinds of access technologies for setting up access platform for enterprise using VPDN access to CDMA1X network of Hunan UNICOM. In this thesis,the author roundly compares four kinds of VPDN access technologies from six aspects such as protocol , security , enterprise gateway address , address assignment, access technology terms , roaming etc . At the same time the author writes some key configure into the text. In order to perfectly play a role in guiding to actual application for VPDN enterprise access , the author lists familiar wrong question and gives means how to solve the question . Simultaneity in Through some examples , the author tells how to realize VPDN access andsome configure in detail,and at the same time the author demonstrates the access process through visit interphase.At present, VPDN access application for hunan UNICOM has being changed to business experiment stage. In practical applications ,the author has found some security questions, so in this thesis the author has brought forword some corresponding solutions to solve security questions.更多还原