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为确保网络高效稳定运行, 管理者有必要对路由更新进行过滤. 本文设计了基于多自治系统 的路由过滤仿真实验, 并详细阐述了被动接口、分发列表、路由映射表以及前缀列表等技术的工作 原理. 给出了在OSPF 路由域中使用分发列表过滤路由、在RIP 路由域中使用被动接口和分发列表 过滤路由、在路由重分发过程中使用路由映射表过滤路由、在EIGRP 路由域中使用前缀列表实现 链路分流、以及使用BGP 协议实现自治系统间互联的详细配置过程, 并形成了明确的分析结论. 上 述研究不仅有助于读者对路由过滤相关技术和BGP 协议工作原理的理解, 而且还有助于熟练掌握 其配置方法. In order to ensure the efficient and stable operation of the network, network managers must control and adjust the routing update. This paper designs a simulation experiment of route filtering based on a multi-autonomous system, and describes the working principle of passive interface, distribution list, route mapping table and prefix list in detail. The detailed configuration process of using distribution list to filter routing in OSPF routing domain, using passive interface and distribution list to filter routing in RIP routing domain, using route mapping table to filter routing in route redistribution process, using prefix list to implement link splitting in EIGRP routing domain, and BGP protocol to realize interconnection between autonomous systems are given conclusion. The above research not only helps readers understand the routing filtering technology and BGP protocol, but also helps to master its configuration method. [ABSTRACT FROM AUTHOR]