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@ -1325,7 +1325,7 @@ Routing entry for 172.16.100.0/24
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在将最后的网关或网络动态通告给路由域中的其它路由器方面,增强的IGRP支持多种不同方式。最终网关,或默认路由,是在目的网络未在路由表中特别列出时,路由器用于引导流量的一种方式(Enhanced IGRP supports numerous ways to advertise dynamically the gateway or network of last resort to other routers within the routing domain. A gateway of last resort, or default route, is a method for the router to direct traffic when the destination network is not specifically listed in the routing table)。而在此种情形下,路由器引导流量的方式有:
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- 使用`ip default-network`命令
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- 使用`network`命令来对网络`0.0.0.0/0`进行通过
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- 使用`network`命令来对网络`0.0.0.0/0`通告
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- 对默认静态路由进行重分发, Redistributing the default static route
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- 使用`ip summary-address eigrp [asn] [network] [mask]`
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@ -1393,3 +1393,10 @@ D 200.10.10.0/24 [90/2172416] via 150.1.1.1, 00:01:11, Serial0/0
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C 150.1.1.0 is directly connected, Serial0/0
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D* 0.0.0.0/0 [90/2172416] via 150.1.1.1, 00:00:43, Serial0/0
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```
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尽管路由重分发(route redistribution)不是CCNA考试部分,这里仍将对其进行一个概述。路由重分发正是通过EIGRP对一条默认路由进行通过的第三种方式。为将现有的静态默认路由重分发到EIGRP中,就要使用路由器配置命令`redistribute static metric [bandwidth] [delay] [reliability] [load] [MTU]`。用于本小节中前面那些输出的同一网络拓扑,将用于对这种方式的部署进行演示,如下图36.13所示:
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*图 36.13 -- EIGRP的默认路由(续)*
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