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ＩＰ虚拟专用网 (ＩＰＶＰＮ)是指互联网服务提供商(ＩＳＰ)以ＩＰ骨干网为基础提供的增值服务。它的出现使企业网络几乎可以无限延伸到地球的每个角落 ,企业能利用无处不在的Ｉｎｔｅｒｎｅｔ通过单一网络结构为职员和商业伙伴提供无缝和安全的连接 ,能够加强与用户、商业伙伴
IP virtual private network (IPVPN) refers to the Internet service provider (ISP) based on the IP backbone to provide value-added services. Its adventures have allowed the enterprise network to extend virtually anywhere in the world, enabling businesses to take advantage of the ubiquitous Internet to provide seamless and secure connectivity to their employees and business partners through a single network architecture, enabling them to collaborate with users, business partners