路由器转发数据包以及静态路由表

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①:获取目的地址. //判断数据包如何转发,即路由;
②:识别路由器能够获知的源. //数据包是否是合法数据包;
③:发现可能到达预期目的地的路由. //判断路径信息;
④:选择一最佳路径. //最佳路径存储在路由表中;
⑤:维护和检验路由信息. //路由协议;

路由器的路由表是转发数据包的重要依据.SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

路由表条目构成:SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

直连:路由器直接连接到网络.
静态路由:系统管理员通过配置手工输入的路由信息.
动态路由:通过交换路由信息(路由协议)获得的路由.
默认路由:静态或动态获得,在不明网络明确路由时使用.SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

静态路由配置方法:SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

Router(config)#ip route network [mask]{ address | interface} [distance] [permanent]SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

说明:Address = 下一台路由器IP地址;Interface = 本地路由器出站接口SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

扩展:《路由器接口状态SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/ SourceByrd's Weblog-https://note.t4x.org/route/theory-forwards-packets/

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  • by Published on November 23, 2012
  • 原文链接:https://note.t4x.org/route/theory-forwards-packets/
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