【摘要】 随着企业规模的不断扩大和相互通信需求的日益增长,需要在企业总部、分支机构以及合作伙伴之间建立安全、有效、经济的信息传输通道,VPN 是解决这一需求的有效手段。本文基于计算机、通信及网络技术,探讨了利用虚拟专用网络(VPN)实现局域网之间以及局域网访问外部互联网间的数据加密通信,重点探讨了 VPS 的技术、实现方法、采用的通信协议和组网方式,并阐述了 VPN 技术应用的发展趋势。更多还原

【Abstract】 With continuous enterprises expanding and increasing requirements for communication,many enterprises need to trans- fer and exchange important data between headquarters,branches and business partners safely,efficiently and economically.Virtual Pri- vate Network (VPN) is one of effective means to do this.Based on the technology of computer,communication and network,the pa- per discusses the data encryption communication between the different LANs through the Internet,emphatically introduces the technol- ogy,implementation method of VPN.The paper also introduces the pattern and communication protocols of building VPN and finally summarizes the development tendency of VPN technology.更多还原