由于管理的需要,对校园网的信息服务必须进行内外网区分,然而目前校园网建设中,由于多校合并出现的跨区域问题给应用带来了不便。针对这种情况,本文提出了专业的解决办法,该办法无需投入硬件设备,经济高效,尤其对位于外网的应用需求不是非常频繁时,不失为一种很好的方案。 Due to the need of management, the information service of campus network must be differentiated inside and outside the network. However, in the current campus network construction, the cross-regional problems arising from the merger of multiple schools bring inconvenience to the application. In view of this situation, this article proposes a professional solution, which requires no investment in hardware devices, cost-effective, especially when the demand for applications outside the network is not very frequent, after all, a good solution.