双点双向重发布

实验一：

步骤：
1给路由器配置IP地址和环回

2.启RIP协议和OSPF协议
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]undo summary
[R1-rip-1]network 12.0.0.0
[R1-rip-1]network 1.0.0.0
[R1-rip-1]network 14.0.0.0

[R2]rip 1
[R2-rip-1]version 2
[R2-rip-1]undo summary
[R2-rip-1]network 12.0.0.0
[R2-rip-1]network 2.0.0.0
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 23.1.1.1 0.0.0.0

[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 23.1.1.2 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0

[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 34.1.1.2 0.0.0.0
[R4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[R4]rip 1
[R4-rip-1]version 2
[R4-rip-1]undo summary
[R4-rip-1]network 14.0.0.0

3.在R2，R4路由器上进行双点双向重发布
[R2]ospf 1
[R2-ospf-1]import-route rip
[R2-ospf-1]rip 1
[R2-rip-1]import-route ospf

[R4]ospf 1
[R4-ospf-1]import-route rip
[R4-ospf-1]rip 1
[R4-rip-1]import-route ospf

4.在R1的路由表中发现有一条4.4.4.0/24 还有一条4.4.4.4/32
解决办法：修改R4环回接口类型为broadcast

[R4-LoopBack0]int lo0
[R4-LoopBack0]ospf network-type broadcast

5.做路由策略

[R2]acl 2000
[R2-acl-basic-2000]rule permit source 4.4.4.0 0.0.0.0
[R2-acl-basic-2000]acl 2001
[R2-acl-basic-2001]rule permit source 34.1.1.0 0.0.0.0
[R2-acl-basic-2001]q
[R2]route-policy zz permit node 10
[R2-route-policy]if-match acl 2000
[R2-route-policy]apply cost 4
[R2-route-policy]q
[R2]route-policy zz per node 20
[R2-route-policy]if-match acl 2001
[R2-route-policy]apply cost 4
[R2]route-policy zz permit node 30
[R2-route-policy]rip 1
[R2-rip-1]import-route ospf route-policy zz

[R2]ip ip-prefix a permit 14.1.1.0 24
[R2]route-policy aa permit node 10
[R2-route-policy]if-match ip-prefix a
[R2-route-policy]apply cost 5
[R2]route-policy aa permit node 20
[R2]ospf 1
[R2-ospf-1]import-route rip route-policy aa

[R4]ip ip-prefix a permit 12.1.1.0 24
[R4]ip ip-prefix b permit 2.2.2.0 24
[R4]route-policy qq permit node 10
[R4-route-policy]if-match ip-prefix a
[R4-route-policy]apply cost 5
[R4]route-policy qq permit node 20
[R4-route-policy]if-match ip-prefix b
[R4-route-policy]apply cost 5
[R4]route-policy qq permit node 30
[R4]acl 2000
[R4-acl-basic-2000]rule permit source 23.1.1.0 0.0.0.0
[R4]route-policy qq permit node 15
[R4-route-policy]if-match acl 2000
[R4-route-policy]apply cost 4
[R4-route-policy]ospf 1
[R4-ospf-1]import-route rip route-policy qq

6.最后的路由表

实验二：


步骤：
1.给路由器配置IP地址和环回
2.启ospf和RIP（R7的环回不宣告在OSPF协议中）
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]undo summary
[R1-rip-1]network 12.0.0.0
[R1-rip-1]network 13.0.0.0
[R1-rip-1]network 1.0.0.0

[R2]rip 1
[R2-rip-1]version 2
[R2-rip-1]undo summary
[R2-rip-1]network 12.0.0.0
[R2-rip-1]network 2.0.0.0
[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 24.1.1.1 0.0.0.0

[R3]rip 1
[R3-rip-1]version 2
[R3-rip-1]undo summary
[R3-rip-1]network 13.0.0.0
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0

3.将R7的环回通过重发布直连方式引入
[R7]ospf 1
[R7-ospf-1]import-route direct

3.在R2，R3路由器上进行双点双向重发布


4.修改R3环回接口类型为broadcast

5.路由策略

R1路由表路径不佳


R4路由表路径不佳


在R2上做route-map
[R2]ip ip-prefix a permit 3.3.3.0 24
[R2]ip ip-prefix b permit 34.1.1.0 24
[R2]route-policy qq deny node 10
[R2-route-policy]if-match ip-prefix a
[R2-route-policy]apply cost 5
[R2]route-policy qq deny node 20
[R2-route-policy]if-match ip-prefix b
[R2-route-policy]apply cost 5
[R2]route-policy qq permit node 30
[R2]rip 1
[R2-rip-1]import-route ospf route-policy qq

在R3上做过滤策略
[R3]acl 2000
[R3-acl-basic-2000]rule deny source 24.1.1.0 0.0.0.255
[R3-acl-basic-2000]rule permit source any
[R3]rip 1
[R3-rip-1]filter-policy 2000 export

在R3上做route-map
ip ip-prefix a index 10 permit 12.1.1.0 24
ip ip-prefix b index 10 permit 2.2.2.0 24

[R3]ospf 1
[R3-ospf-1]import-route rip route-policy zz

在R2上做过滤策略
[R2]ip ip-prefix c deny 13.1.1.0 24
[R2]ip ip-prefix c permit 0.0.0.0 0 less-equal 32
[R2]ospf 1
[R2-ospf-1]filter-policy ip-prefix c export