Study on Construction of Educational Intranet on IP-VPN - Realization of remote management of distributed equipment on network and construction of comfortable learning environment-

我们实验性地构建了一个基于IP网络的虚拟教育内部网，以探索是否可以远程操作多台计算机。其结果是，远程计算机可以打开和关闭电源，监控显示器总是可能没有问题。这证明了中心可以在不给现场（学校）带来任何麻烦的情况下，负责系统的运营和管理。为了在窄带条件下有效地实现视频会议系统的远程授课，我们还在虚拟教育intranet上进行了交互式组播实验。在公司或学校之间的远程学习中，防火墙的限制有时会使它们难以顺利连接。随着我们研究的发展，我们可以解决这个问题，并为下一代的先进通信做出巨大贡献。

We have experimentally constructed a virtual educational intranet with IP network to find out if we can operate multiple computers remotely. The result is that the distant computers can be powered on and off, and monitoring the displays is always possible without problems. This has proved that the center can be responsible for operations and management system without giving any trouble to the site(school).We have also carried out interactive multicast experiments on the virtual educational intranet to make sure we can realize a distant lecture with a video conference system efficiently in a narrow band. In distance learning between companies or schools, firewall constraints sometimes make it difficult to connect them smoothly. What we have as the development of our research can be a solutions of this problem as well as a great contribution to advanced communication for the next generation.