说明：  实现了RIP动态路由协议 1. 对客户端收到的RIP报文进行合法性检查，丢弃错误报文并指出错误原因 2. 处理Request报文，根据报文内容及本地路由表信息组成Response报文，实现水平分割 3. 处理Response报文，正确解析其中信息，更新本地路由表 4. 路由表项超时删除 5. 路由表项定时发送，实现水平分割，与2相似。
(Implementation of the RIP dynamic routing protocol 1 on the client receives the RIP message for validity check, discarding the error message and pointed out that the causes of error The 2 processing Request message according to the message content, and the local routing table information consists of Response message, to achieve the level of segmentation The 3 processing Response message, the correct analysis of the information, to update the local routing table 4 routing table entry timeout remove 5 routing table entry timing transmission, to achieve the level of segmentation, and 2 similar.)