With route optimization, authentication is more difficult to manage between communication entity. We give a set of proposal based on registration datagram to realize security association among the nodes.

• 针对路由优化过程当中通信实体之间的认证难问题 ；提出了一套基于登录报文的认证方案 ；从而保障和实现了网络节点之间的通信安全 .