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Daily update. 2017-07-16 17:20:06

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Peng Hailin
2017-07-16 17:20:06 +08:00
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d38-EIGRP-For-IPv6.md
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@@ -43,4 +43,6 @@ EIGRPv6保留了EIGRPv4中的大部分相同基础的核心功能（For the most
思科IOS软件中对EIGRPv4与EIGRPv4的配置上，有着一些显著的差异。那么第一个显著差异就在于开启受路由的协议方式的不同。对于EIGRPv4来说，需要使用全局配置命令`router eigrp [ASN]`来开启EIGRPv4的路由，并指定该EIGRPv4自治系统编号。而在配置EIGRPv6时，则是使用`ipv6 router eigrp [ASN]`来开启EIGRPv6并指定出**本地路由器ASN**了（There are some notable differences in the configuration of EIGRPv4 and EIGRPv6 in Cisco IOS software. The first notable difference is the way in which the routing protocol is enabled. For EIGRPv4, the `router eigrp [ASN]` global configuration command is required to enable EIGRPv4 routing and to specify the EIGRPv4 autonomous system number(ASN). When configuring EIGRPv6, the `ipv6 router eigrp [ASN]` global configuration command is used instead to enable EIGRPv6 and to specify **the local router ASN**）。
尽管EIGRPv4与EIGRPv6的开启有些类似，但在两个路由进程开启之后的协议状态中，是有着非常显著的不同的。默认在开启了EIGRPv4时，该协议就自动启动，并在其假定有桌正确配置的情况下，开始在所有指定的运作接口上发送Hello数据包。而当在思科IOS软件中启用EIGRPv6时，默认情况下在该协议被开启后，其将保持关闭状态。这就意味着就算在某些指定接口下得以开启，在执行路由器配置命令`no shutdown`之前，EIGRP进程仍不是运作中的（While enabling EIGRPv4 and EIGRPv6 is somewhat similar, there is a very notable and significant difference in the protocol states once the routing process has been enabled. By default, when EIGRPv4 is enabled, the protocol automatically starts and, assuming correct configuration, begins sending Hello packets on all specified interfaces. When enabling EIGRPv6 in Cisco IOS software, by default, after the protocol has been enabled, it remains in the shutdown state. This means that even if enabled under specified interfaces, the EIGRP process will not be operational until the `no shutdown` router configuration command is issued）。