cisco RIP配置 汇总
今天来讲下RIP配置，希望大家多交流交流。拓扑图如下所示：
R1配置如下：
en
conf t
int lo0
ip add 1.1.1.1 255.255.255.0
int f0/0
ip add 192.168.12.1 255.255.255.0
no sh
ex
route rip
version 2
no auto-summary
network 1.1.1.0
network 192.168.12.0
end
R2配置如下
en
conf t
int f0/0
ip add 192.168.12.2 255.255.255.0
no sh
int f0/1
ip add 192.168.23.2 255.255.255.0
no sh
ex
router rip
version 2
no auto-summary
network 192.168.12.0
network 192.168.23.0
end
R3配置如下
en
conf t
int f0/0
ip add 192.168.23.3 255.255.255.0
no sh
int f0/1
ip add 192.168.34.3 255.255.255.0
no sh
ex
rouote rip
version 2
no auto-summary
network 192.168.23.0
network 192.168.34.0
end
R4配置如下：
en
conf t
int f0/0
ip add 192.168.34.4 255.255.255.0
no sh
int loopback 0
ip add 4.4.0.4 255.255.255.0
int loopback 1
ip add 4.4.1.4 255.255.255.0
int loopback 2
ip add 4.4.2.4 255.255.255.0
int loopback 3
ip add 4.4.3.4 255.255.255.0
ex
route rip
version 2
no auto-summary
network 192.168.34.0
network 4.4.0.0
所有路由配置完成然后相互ping通
我们设置的是将所有路由自动汇总关闭，首先查看一下各个路由的路由表。
R1：
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
4.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
R 4.0.0.0/8 via 192.168.12.2, 00:00:04, FastEthernet0/0
R 4.4.0.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
R 4.4.1.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
R 4.4.2.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
R 4.4.3.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
C 192.168.12.0/24 is directly connected, FastEthernet0/0
R 192.168.23.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
R 192.168.34.0/24 via 192.168.12.2, 00:00:04, FastEthernet0/0
R2：
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.12.1, 00:00:18, FastEthernet0/0
4.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
R 4.0.0.0/8 via 192.168.23.3, 00:00:22, FastEthernet0/1
R 4.4.0.0/24 via 192.168.23.3, 00:00:22, FastEthernet0/1
R 4.4.1.0/24 via 192.168.23.3, 00:00:22, FastEthernet0/1
R 4.4.2.0/24 via 192.168.23.3, 00:00:22, FastEthernet0/1
R 4.4.3.0/24 via 192.168.23.3, 00:00:22, FastEthernet0/1
C 192.168.12.0/24 is directly connected, FastEthernet0/0
C 192.168.23.0/24 is directly connected, FastEthernet0/1
R 192.168.34.0/24 via 192.168.23.3, 00:00:22, FastEthernet0/1
R3：
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.23.2, 00:00:07, FastEthernet0/0
4.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
R 4.0.0.0/8 via 192.168.34.4, 00:00:33, FastEthernet0/1
R 4.4.0.0/24 via 192.168.34.4, 00:00:05, FastEthernet0/1
R 4.4.1.0/24 via 192.168.34.4, 00:00:05, FastEthernet0/1
R 4.4.2.0/24 via 192.168.34.4, 00:00:05, FastEthernet0/1
R 4.4.3.0/24 via 192.168.34.4, 00:00:05, FastEthernet0/1
R 192.168.12.0/24 via 192.168.23.2, 00:00:07, FastEthernet0/0
C 192.168.23.0/24 is directly connected, FastEthernet0/0
C 192.168.34.0/24 is directly connected, FastEthernet0/1
R4：
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.34.3, 00:00:05, FastEthernet0/0
4.0.0.0/24 is subnetted, 4 subnets
C 4.4.0.0 is directly connected, Loopback0
C 4.4.1.0 is directly connected, Loopback1
C 4.4.2.0 is directly connected, Loopback2
C 4.4.3.0 is directly connected, Loopback3
R 192.168.12.0/24 via 192.168.34.3, 00:00:05, FastEthernet0/0
R 192.168.23.0/24 via 192.168.34.3, 00:00:05, FastEthernet0/0
C 192.168.34.0/24 is directly connected, FastEthernet0/0
此时我们可以看到所有路由的路由条目上将4.4.0.0/24 4.、4.4.1.0/24、4.4.2.0/24、4.4.3.0/244个网段每个都作为一条单独的路由条目，此时比较麻烦，若我们将之汇总时怎样一种情况呢！
我们在R4上配置
R4：
en
conf t
router rip
auto-summary
end
然后清空各个路由的路由表，不然的话就得等很长时间才会看到路由表的变化。
R1:
en
clear ip router * (清空后等待30秒刷新)
show ip route
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
R 4.0.0.0/8 via 192.168.12.2, 00:00:03, FastEthernet0/0
C 192.168.12.0/24 is directly connected, FastEthernet0/0
R 192.168.23.0/24 via 192.168.12.2, 00:00:03, FastEthernet0/0
R 192.168.34.0/24 via 192.168.12.2, 00:00:03, FastEthernet0/0
R2:
en
clear ip route *
show ip route
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.12.1, 00:00:15, FastEthernet0/0
R 4.0.0.0/8 via 192.168.23.3, 00:00:03, FastEthernet0/1
C 192.168.12.0/24 is directly connected, FastEthernet0/0
C 192.168.23.0/24 is directly connected, FastEthernet0/1
R 192.168.34.0/24 via 192.168.23.3, 00:00:03, FastEthernet0/1
R3:
en
clear ip route *
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.23.2, 00:00:40, FastEthernet0/0
R 4.0.0.0/8 via 192.168.34.4, 00:00:22, FastEthernet0/1
R 192.168.12.0/24 via 192.168.23.2, 00:00:14, FastEthernet0/0
C 192.168.23.0/24 is directly connected, FastEthernet0/0
C 192.168.34.0/24 is directly connected, FastEthernet0/1
R4:
en
clear ip route *
1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 via 192.168.34.3, 00:00:16, FastEthernet0/0
4.0.0.0/24 is subnetted, 4 subnets
C 4.4.0.0 is directly connected, Loopback0
C 4.4.1.0 is directly connected, Loopback1
C 4.4.2.0 is directly connected, Loopback2
C 4.4.3.0 is directly connected, Loopback3
R 192.168.12.0/24 via 192.168.34.3, 00:00:16, FastEthernet0/0
R 192.168.23.0/24 via 192.168.34.3, 00:00:16, FastEthernet0/0
C 192.168.34.0/24 is directly connected, FastEthernet0/0
在R4上开启自动汇总后会发现R1、R2、R3上4.0.0.0/8的网段在路由表里面都汇总了
大家可以看我标出的红色字体，就是汇总的条目。至于R4为什么没有汇总，因为这4个路由条目是R4直连的，且汇总时从R4的f0/0接口发出去的，且R4上汇总的话，数据发往何地R4都不清楚了。
希望大家多指点，交流，谢谢！
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