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Peng Hailin 2016-09-20 10:32:52 +08:00
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d36-EIGRP.md
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@ -2013,3 +2013,34 @@ D EX 10.2.2.0 [170/3449856] via 150.1.1.1, 00:07:02, Serial0/0
D EX 10.1.1.0 [170/3449856] via 150.1.1.1, 00:07:02, Serial0/0
D EX 10.0.0.0 [170/3449856] via 150.1.1.1, 00:07:02, Serial0/0
```
现在，假设`10.0.0.0/24`是一个内部网络，而`10.1.1.0/24`、`10.2.2.0/24`与`10.3.3.0/24`三个子网却是外部网络。因为这些将构成有类汇总地址`10.0.0.0/8`的路由中有一条是内部路由，所以EIGRP将创建出一个汇总地址，并将其包含在EIGRP拓扑表与IP路由表中。命令`show ip protocols`显示出`10.0.0.0/24`网络此时就是一个内部EIGRP网络了，如下所示：
```
R1#show ip protocols
Routing Protocol is “eigrp 150”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: connected, eigrp 150
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is in effect
Automatic address summarization:
150.1.0.0/16 for Loopback0
Summarizing with metric 2169856
10.0.0.0/8 for Serial0/0
Summarizing with metric 128256
Maximum path: 4
Routing for Networks:
10.0.0.1/32
150.1.1.1/32
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 00:00:05
150.1.1.2 90 00:00:02
Distance: internal 90 external 170
```