基于GRE隧道的校园网运营商代拨方案设计OA

In response to the problems of high bandwidth costs for campus network egresses and a single internet access method for teachers and students,this paper designs a set of operator proxy dialing scheme realized based on GRE tunnel and virtual private network technologies,and the scheme does not require changing the original topological architecture.By configuring tunnel interfaces between core BRAS devices,optimizing proxy dialing process and transforming Portal authentication systems,deep integration of campus networks and operator networks is achieved.The scheme supports teachers and students to independently select operator networks and meets the demands of multi-network access.It features both ease of operation and compatibility,safeguards the interests of social capital while unifying user management,and provides a replicable technical path for low-cost transformation of university networks.