OSPF综合实验

news2025/1/12 15:49:30

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1.首先把IP跟环回配上

[R4]int g 0/0/0
[R4-GigabitEthernet0/0/0]ip add 12.1.1.2 24
[R4-GigabitEthernet0/0/0]int g 0/0/2
[R4-GigabitEthernet0/0/2]ip add 32.1.1.2 24
[R4-GigabitEthernet0/0/2]int g 0/0/1
[R4-GigabitEthernet0/0/1]ip add 22.1.1.2 24
[R4-GigabitEthernet0/0/1]int g 4/0/0
[R4-GigabitEthernet4/0/0]ip add 42.1.1.2 24
[R4-GigabitEthernet4/0/0]int l 0
[R4-LoopBack0]ip add 4.4.4.4 24
其他同理

2.配缺省使公网通

[R3]ip route-static 0.0.0.0 0 12.1.1.2
[R5]ip route-static 0.0.0.0 0 42.1.1.2
[R6]ip route-static 0.0.0.0 0 32.1.1.2
[R7]ip route-static 0.0.0.0 0 22.1.1.2
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3.配置MGRE环境

[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ip add 172.16.1.1 29
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source 12.1.1.1
[R3-Tunnel0/0/0]nhrp network-id 100
[R3-Tunnel0/0/0]nhrp entry multicast dynamic
[R5]int t 0/0/0
[R5-Tunnel0/0/0]ip add 172.16.1.2 29
[R5-Tunnel0/0/0]tunnel-protocol gre p2mp
[R5-Tunnel0/0/0]source GigabitEthernet 0/0/0
[R5-Tunnel0/0/0]nhrp network-id 100
[R5-Tunnel0/0/0]nhrp entry 172.16.1.1 12.1.1.1 register
其他同理
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4.配置OSPF

[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255

[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 1
[R2-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255

[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.7.255
[R3-ospf-1-area-0.0.0.1]q
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 172.16.1.1 0.0.0.0

[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255

[R6]ospf 1 router-id 6.6.6.6
[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.3.255
[R6-ospf-1-area-0.0.0.0]q
[R6-ospf-1]area 2
[R6-ospf-1-area-0.0.0.2]network 172.16.65.1 0.0.0.0

[R7]ospf 1 router-id 7.7.7.7
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.7.255
[R7-ospf-1-area-0.0.0.0]q
[R7-ospf-1]area 3
[R7-ospf-1-area-0.0.0.3]network 172.16.97.1 0.0.0.0

[R8]ospf 1 router-id 8.8.8.8
[R8-ospf-1]area 3
[R8-ospf-1-area-0.0.0.3]network 172.16.0.0 0.0.255.255

[R9]ospf 2 router-id 9.9.9.9
[R9-ospf-2]area 4
[R9-ospf-2-area-0.0.0.4]network 172.16.128.0 0.0.3.255

[R10]ospf 1 router-id 10.10.10.10
[R10-ospf-1]area 4
[R10-ospf-1-area-0.0.0.4]network 172.16.0.0 0.0.255.255

[R11]ospf 1 router-id 11.11.11.11
[R11-ospf-1]area 2
[R11-ospf-1-area-0.0.0.2]network 172.16.0.0 0.0.255.255

[R12]ospf 1 router-id 12.12.12.12
[R12-ospf-1]area 2
[R12-ospf-1-area-0.0.0.2]network 172.16.65.10 0.0.0.0
[R12]rip 1
[R12-rip-1]version 2
[R12-rip-1]network 172.16.0.0

5.更改接口类型，建立邻居关系

[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ospf network-type p2mp

[R5]int Tunnel 0/0/0
[R5-Tunnel0/0/0]ospf network-type p2mp

[R6]int Tunnel 0/0/0
[R6-Tunnel0/0/0]ospf network-type p2mp

[R7]int Tunnel 0/0/0
[R7-Tunnel0/0/0]ospf network-type p2mp

6.重发布的方式导入rip路由和area4的路由信息

[R9]ospf 1
[R9-ospf-1]import-route ospf 2

[R12]ospf 1
[R12-ospf-1]import-route rip 1

7.减少LSA的更新量，汇总，配置空接口路由

[R3]ospf 1
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.224.0
[R3]ip route-static 172.16.32.0 19 NULL 0

[R6]ospf 1
[R6-ospf-1]area 2
[R6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0
[R6]ip route-static 172.16.64.0 19 NULL 0

[R7]ospf 1
[R7-ospf-1]area 3
[R7-ospf-1-area-0.0.0.3]abr-summary 172.16.96.0 255.255.224.0
[R7]ip route-static 172.16.96.0 19 NULL 0

[R9]ospf 1
[R9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0
[R9]ip route-static 172.16.128.0 19 NULL 0

[R12]ospf 1
[R12-ospf-1]asbr-summary 172.16.160.0 255.255.224.0
[R12]ip route-static 172.16.160.0 19 NULL 0

8.配置特殊区域

[R1]ospf 1
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]stub

[R2]ospf 1
[R2-ospf-1]area 1
[R2-ospf-1-area-0.0.0.1]stub

[R3]ospf 1
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]stub no-summary

[R7]ospf 1
[R7-ospf-1]area 3
[R7-ospf-1-area-0.0.0.3]nssa no-summary

[R8]ospf 1
[R8-ospf-1]area 3
[R8-ospf-1-area-0.0.0.3]nssa

[R9]ospf 1
[R9-ospf-1]area 3
[R9-ospf-1-area-0.0.0.3]nssa

[R6]ospf 1
[R6-ospf-1]area 2
[R6-ospf-1-area-0.0.0.2]nssa no-summary

[R11]ospf 1
[R11-ospf-1]area 2
[R11-ospf-1-area-0.0.0.2]nssa

[R12]ospf 1
[R12-ospf-1]area 2
[R12-ospf-1-area-0.0.0.2]nssa

9.R10里面没有其他的路由信息，下发一条缺省路由指向R9

[R9]ospf 2
[R9-ospf-2]default-route-advertise

10.配置NAT环境,完成所有设备均可访问R4的环回

[R3]acl 2000
[R3-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[R3-acl-basic-2000]q
[R3]int Serial 4/0/0
[R3-Serial4/0/0]nat outbound 2000
其他同理

11.加快收敛

[R5]int t 0/0/0
[R5-Tunnel0/0/0]ospf timer hello 10
[R3]int t 0/0/0
[R3-Tunnel0/0/0]ospf timer hello 10
[R6]int t 0/0/0
[R6-Tunnel0/0/0]ospf timer hello 10
[R7]int t 0/0/0
[R7-Tunnel0/0/0]ospf timer hello 10

12.保障更新安全

[R2]ospf 1
[R2-ospf-1]area 1
[R2-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 123456
[R1]ospf 1
[R1-ospf-1]area 1
[R1-ospf-1-area-0.0.0.1]authentication-mode md5 1 123456
[R3]ospf 1
[R3-ospf-1]area 1
[R3-ospf-1-area-0.0.0.1]authentication-mode md5 1 cipher 123456