如何通过经济便捷的方式将雇员、客户与合作伙伴连接起来是用户最关心的问题。Internet价格低廉,容易连接,但安全、可靠性较差;专线网络安全可靠但价格昂贵,并只能在专线接通之处才能登上网络;而VPN是一个安全的网络隧道,为用户提供了一个全新的选择。简单来说,VPN就是一种利用公用网络(如Internet)作为基本传输媒介,将远程用户、分支机构 How to connect employees, customers and partners through economic and convenient ways is the most concern to users. The Internet is inexpensive and easy to connect, but it is less secure and less reliable. The private network is safe and secure but expensive, and can only be reached at the point where the private line is connected. VPN is a secure network tunnel that provides users with A new choice. In simple terms, VPN is a kind of use of public networks (such as the Internet) as a basic transmission medium, remote users, branch offices