HCIP第八天

1、实验需求

1、使用双点双向重发布
2、所有路由器进行最佳选路
3、存在备份路径，不得出现环路，和路由回馈
4、R1除本身环回外，外加几条环回
172.16.1.0/24 deny
172.16.2.0/24 type 1
172.16.3.0/24 cost 6
172.16.4.0/24 type 1 cost 9
更改如上参数

2、实验拓扑

3、分析过程

1、如拓扑IP地址分配，左边为RIP，右边为OSPF area0
2、2,2,2,2和4.4.4.4环回可能会存在32位掩码和24位掩码的路由，所以进环回接口，将环回接口改为broadcast类型
3、备份路径需将某些路由的Cost值修改在ASBR上进行即可，路由回馈在OSPF中已经解决
4、防止出现环路，将ASBR上面的直连接口重发布入RIP和OSPF区域
5、最后添加路由规则

4、配置内容

R1

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 255.255.255.0
[r1-GigabitEthernet0/0/0]int g 0/0/1
[r1-GigabitEthernet0/0/1]ip address 14.1.1.1 255.255.255.0
[r1]int l0
[r1-LoopBack0]ip address 1.1.1.1 255.255.255.0
[r1]int l1
[r1-LoopBack1]ip add 172.16.1.1 24
[r1-LoopBack1]int l2
[r1-LoopBack2]ip add 172.16.2.1 24
[r1-LoopBack2]int l3
[r1-LoopBack3]ip add 172.16.3.1 24
[r1-LoopBack3]int l4
[r1-LoopBack4]ip add 172.16.4.1 24
[r1]rip 1
[r1-rip-1]version 2
[r1-rip-1]network 12.0.0.0
[r1-rip-1]network 1.0.0.0
[r1-rip-1]network 14.0.0.0
[r1-rip-1]network 172.16.0.0
[r1]ip ip-prefix 23 permit 23.1.1.0 24
[r1]int g 0/0/1
[r1-GigabitEthernet0/0/1]rip metricin ip-prefix 23 2
[r1]ip ip-prefix 4 permit 4.4.4.0 24
[r1]ip ip-prefix 43 permit 43.1.1.0 24
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]rip metricin ip-prefix 4 2
[r1-GigabitEthernet0/0/0]rip metricin ip-prefix 43 2

R2

[r2]int g 0/0/0
[r2-GigabitEthernet0/0/0]ip address 12.1.1.2
255.255.255.0
[r2-GigabitEthernet0/0/0]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip address 23.1.1.2 255.255.255.0
[r2]int l0
[r2-LoopBack0]ip address 2.2.2.2 255.255.255.0
[r2-LoopBack0]ospf network-type broadcast
[r2]ospf 1
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r2]ospf 1
[r2-ospf-1] import-route direct
[r2-ospf-1] import-route rip 1
[r2]rip 1
[r2-rip-1] version 2
[r2-rip-1] network 12.0.0.0
[r2-rip-1] network 2.0.0.0
[r2-rip-1] import-route direct
[r2-rip-1] import-route ospf 1
[r2]ip ip-prefix 5 permit 4.4.4.0 24
[r2]ip ip-prefix 6 permit 43.1.1.0 24
[r2]ip ip-prefix 1 permit 172.16.1.0 24
[r2]ip ip-prefix 2 permit 172.16.2.0 24
[r2]ip ip-prefix 3 permit 172.16.3.0 24
[r2]ip ip-prefix 4 permit 172.16.4.0 24
[r2]route-policy haha deny node 10
[r2-route-policy]if-match ip-prefix 1
[r2]route-policy haha permit node 20
[r2-route-policy]if-match ip-prefix 2
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 30
[r2-route-policy]if-match ip-prefix 3
[r2-route-policy]apply cost 6
[r2]route-policy haha permit node 40
[r2-route-policy]if-match ip-prefix 4
[r2-route-policy]apply cost 9
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 50
[r2]route-policy haha permit node 15
[r2-route-policy]if-match ip-prefix 5
[r2-route-policy]apply cost-type type-1
[r2]route-policy haha permit node 25
[r2-route-policy]if-match ip-prefix 6
[r2-route-policy]apply cost-type type-1
[r2]ospf 1
[r2-ospf-1]import-route rip 1 route-policy haha

R3

[r3]ospf 1
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0] network 3.3.3.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0] network 23.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0] network 43.1.1.0 0.0.0.255
[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip address 43.1.1.3 255.255.255.0
[r3-GigabitEthernet0/0/0]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip address 23.1.1.3 255.255.255.0

R4

[r4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip address 14.1.1.4 255.255.255.0
[r4-GigabitEthernet0/0/0]int g 0/0/1
[r4-GigabitEthernet0/0/1] ip address 43.1.1.4 255.255.255.0
[r4-GigabitEthernet0/0/1]int l0
[r4-LoopBack0]ip address 4.4.4.4 255.255.255.0
[r4-LoopBack0]ospf network-type broadcast
[r4]rip 1
[r4-rip-1]version 2
[r4-rip-1]network 14.0.0.0
[r4-rip-1]import-route direct
[r4-rip-1]import-route ospf 1
[r4]ip ip-prefix 5 permit 23.1.1.0 24
[r4]ip ip-prefix 6 permit 2.2.2.0 24
[r4]ip ip-prefix 1 permit 172.16.1.0 24
[r4]ip ip-prefix 2 permit 172.16.2.0 24
[r4]ip ip-prefix 3 permit 172.16.3.0 24
[r4]ip ip-prefix 4 permit 172.16.4.0 24
[r4]route-policy haha deny node 10
[r4-route-policy]if-match ip-prefix 1
[r4]route-policy haha permit node 20
[r4-route-policy]if-match ip-prefix 2
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 30
[r4-route-policy]if-match ip-prefix 3
[r4-route-policy]apply cost 6
[r4]route-policy haha permit node 40
[r4-route-policy]if-match ip-prefix 4
[r4-route-policy]apply cost 9
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 50
[r4]route-policy haha permit node 15
[r4-route-policy]if-match ip-prefix 5
[r4-route-policy]apply cost-type type-1
[r4]route-policy haha permit node 25
[r4-route-policy]if-match ip-prefix 6
[r4-route-policy]apply cost-type type-1
[r4]ospf 1
[r4-ospf-1]import-route rip 1 route-policy haha

5、结果验证

双向重发布
R1通过RIP学到的路由

R1去2.2.2.2下一跳为12.1.1.2

R3通过OSPF学到的路由

R3去4.4.4.4下一跳为43.1.1.4

R3学到的R1的路由