192.168.1.1 255.255.255.0
#
rip 1
undo summary 关闭rip的路由汇总
version 2
network 12.0.0.0
network 192.168.1.0
#
AR2上的配置
#
interface GigabitEthernet0/0/0
ip address 12.1.1.2 255.255.255.0
rip authentication-mode md5 usual cipher %$%$，EaAAs(q<*8PCJM\=C]/C`G\%$%$ 配置认证
#
interface GigabitEthernet0/0/1
ip address 23.1.1.2 255.255.255.0
#
rip 1
undo summary
version 2
network 12.0.0.0
filter-policy ip-prefix deny2.0 export GigabitEthernet0/0/0 配置路由发布过滤，用ip-prefix匹配允许发布的路由
import-route rip 3 将rip3重分发到rip1中，cost默认1
#
rip 3
undo summary
version 2
network 23.0.0.0
import-route rip 1 将rip1重分发到rip3中，cost默认1
#
ip ip-prefix deny2.0 index 10 permit 172.16.1.0 24 使用前缀列表抓取rip1中需要发布的路由
#
AR3上的配置
#
interface GigabitEthernet0/0/0
ip address 23.1.1.3 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 172.16.1.1 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address 172.16.2.1 255.255.255.0
#
rip 3
undo summary
version 2
network 172.16.0.0
network 23.0.0.0
#
检查配置结果，查看AR1上是否只有172.16.1.0/24路由在rip中被学习到。
AR1上查看rip路由表
[Huawei]display ip routing-table protocol rip
Route Flags: R - relay， D - download to fib
------------------------------------------------------------------------------
Public routing table : RIP
Destinations : 1 Routes : 1
RIP routing table status :
Destinations : 1 Routes : 1
Destination/Mask Proto Pre Cost Flags NextHop Interface
172.16.1.0/24 RIP 100 1 D 12.1.1.2 GigabitEthernet0/0/0
RIP routing table status :
Destinations : 0 Routes : 0
[Huawei]
[Huawei]ping 172.16.1.1
PING 172.16.1.1: 56 data bytes， press CTRL_C to break
Reply from 172.16.1.1: bytes=56 Sequence=1 ttl=254 time=30 ms
Reply from 172.16.1.1: bytes=56 Sequence=2 ttl=254 time=20 ms
Reply from 172.16.1.1: bytes=56 Sequence=3 ttl=254 time=30 ms
--- 172.16.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 20/28/30 ms
[Huawei]
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