ospf综合实验

1.规划接口IP地址和本地环回地址

[r1]interface LoopBack 0
[r1-LoopBack0]ip address 1.1.1.1 24
[r1-LoopBack0]int lo 1
[r1-LoopBack1]ip address 201.1.1.1 24
[r1-LoopBack1]int lo 2
[r1-LoopBack2]ip address 201.1.2.1 24
[r1-LoopBack2]int lo 3
[r1-LoopBack3]ip address 201.1.3.1 24
[r1-LoopBack3]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 14.1.1.1 24

[r2]interface LoopBack 0
[r2-LoopBack0]ip address 2.2.2.2 24
[r2-LoopBack0]int g0/0/0
[r2-GigabitEthernet0/0/0]ip address 24.1.1.1 24
[r2-GigabitEthernet0/0/0]int g0/0/1
[r2-GigabitEthernet0/0/1]ip address 25.1.1.1 24

[r3]interface LoopBack 0
[r3-LoopBack0]ip address 3.3.3.3 24
[r3-LoopBack0]int g0/0/0
[r3-GigabitEthernet0/0/0]ip address 34.1.1.1 24
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip address 35.1.1.1 24

[ISP]interface g0/0/0
[ISP-GigabitEthernet0/0/0]ip address 14.1.1.2 24
[ISP-GigabitEthernet0/0/0]int g0/0/1
[ISP-GigabitEthernet0/0/1]ip address 24.1.1.2 24
[ISP-GigabitEthernet0/0/1]int g0/0/2
[ISP-GigabitEthernet0/0/2]ip address 34.1.1.2 24

[r4]int LoopBack 0
[r4-LoopBack0]ip address 4.4.4.4 24
[r4-LoopBack0]int g0/0/0
[r4-GigabitEthernet0/0/0]ip address 25.1.1.2 24
[r4-GigabitEthernet0/0/0]int g0/0/1
[r4-GigabitEthernet0/0/1]ip address 35.1.1.2 24
[r4-GigabitEthernet0/0/1]int g0/0/2
[r4-GigabitEthernet0/0/2]ip address 55.1.1.1 24
[r4-GigabitEthernet0/0/2]int g4/0/0
[r4-GigabitEthernet4/0/0]ip address 56.1.1.1 24

[r5]interface LoopBack 0
[r5-LoopBack0]ip ad
[r5-LoopBack0]ip address 5.5.5.5 24
[r5-LoopBack0]int lo1
[r5-LoopBack1]ip address 202.1.1.1 24
[r5-LoopBack1]int lo2
[r5-LoopBack2]ip address 202.1.2.1 24
[r5-LoopBack2]int lo3
[r5-LoopBack3]ip address 202.1.3.1 24
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip address 55.1.1.2 24

[r6]int LoopBack 0
[r6-LoopBack0]ip address 6.6.6.6 24
[r6-LoopBack0]int g0/0/0
[r6-GigabitEthernet0/0/0]ip address 56.1.1.2 24
[r6-GigabitEthernet0/0/0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip address 67.1.1.1 24

[r7]int LoopBack 0
[r7-LoopBack0]ip address 7.7.7.7 24
[r7-LoopBack0]int lo1
[r7-LoopBack1]ip address 203.1.1.1 24
[r7-LoopBack1]int lo2
[r7-LoopBack2]ip address 203.1.2.1 24
[r7-LoopBack2]int lo3
[r7-LoopBack3]ip address 203.1.3.1 24
[r7]interface g0/0/0
[r7-GigabitEthernet0/0/0]ip address 67.1.1.2 24

2.R1-R2-R3为MGRE网络，R1为hub；

先启静态让网络通
[r1]ip route-static 0.0.0.0 0 14.1.1.2
[r2]ip route-static 0.0.0.0 0 24.1.1.2
[r3]ip route-static 0.0.0.0 0 34.1.1.2
在r1上测试

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 100.1.1.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp
[r1-Tunnel0/0/0]source 14.1.1.1
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]nhrp entry multicast dynamic

[r2]interface Tunnel 0/0/0
[r2-Tunnel0/0/0]ip address 100.1.1.2 24
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp
[r2-Tunnel0/0/0]source 24.1.1.1
[r2-Tunnel0/0/0]nhrp network-id 100
[r2-Tunnel0/0/0]nhrp entry 100.1.1.1 14.1.1.1 register

[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip address 100.1.1.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source 34.1.1.1
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]nhrp entry 100.1.1.1 14.1.1.1 register

配置完成在r1上查看

测试

3.R1-R2-R3-R4-R6启用OSPF协议，R1-R2-R3网络类型MGRE修改为BMA

[r1]ospf 100 router-id 91.1.1.1
[r1-ospf-100]area 0
[r1-ospf-100-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[r1-ospf-100-area-0.0.0.0]network 201.1.1.1 0.0.0.0
[r1-ospf-100-area-0.0.0.0]network 201.1.2.1 0.0.0.0
[r1-ospf-100-area-0.0.0.0]network 201.1.3.1 0.0.0.0
[r1-ospf-100-area-0.0.0.0]network 100.1.1.1 0.0.0.0

[r2]ospf 100 router-id 92.2.2.2
[r2-ospf-100]area 0
[r2-ospf-100-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[r2-ospf-100-area-0.0.0.0]network 100.1.1.2 0.0.0.0
[r2-ospf-100-area-0.0.0.0]q
[r2-ospf-100]area 1
[r2-ospf-100-area-0.0.0.1]network 25.1.1.1 0.0.0.0

[r3]ospf 100 router-id 93.3.3.3
[r3-ospf-100]area 0
[r3-ospf-100-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-100-area-0.0.0.0]network 100.1.1.3 0.0.0.0
[r3-ospf-100-area-0.0.0.0]q
[r3-ospf-100]area 1
[r3-ospf-100-area-0.0.0.1]network 35.1.1.1 0.0.0.0

[r4]ospf 100 router-id 94.4.4.4
[r4-ospf-100]area 1
[r4-ospf-100-area-0.0.0.1]network 4.4.4.4 0.0.0.0
[r4-ospf-100-area-0.0.0.1]network 25.1.1.2 0.0.0.0
[r4-ospf-100-area-0.0.0.1]network 35.1.1.2 0.0.0.0
[r4-ospf-100-area-0.0.0.1]q
[r4-ospf-100]area 2
[r4-ospf-100-area-0.0.0.2]network 56.1.1.1 0.0.0.0

[r6]ospf 100 router-id 96.6.6.6
[r6-ospf-100]area 2
[r6-ospf-100-area-0.0.0.2]network 6.6.6.6 0.0.0.0
[r6-ospf-100-area-0.0.0.2]network 56.1.1.2 0.0.0.0

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ospf network-type broadcast
[r1]interface LoopBack 0
[r1-LoopBack0]ospf network-type broadcast
[r1-LoopBack0]int lo1
[r1-LoopBack1]ospf network-type broadcast
[r1-LoopBack1]int lo2
[r1-LoopBack2]ospf network-type broadcast
[r1-LoopBack2]int lo3
[r1-LoopBack3]ospf network-type broadcast

[r2]int Tunnel 0/0/0
[r2-Tunnel0/0/0]ospf network-type broadcast
[r2-Tunnel0/0/0]int lo0
[r2-LoopBack0]ospf network-type broadcast

[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ospf network-type broadcast
[r3-Tunnel0/0/0]int lo0
[r3-LoopBack0]ospf network-type broadcast

在r3上查看邻居

发现DR为r2，BDR为r1，这样r2变成了hub，只能r2和r1通信，r3不能和r1通信，所以需要修改优先级，让r1为DR，无BDR。
[r1-LoopBack3]int tu 0/0/0
[r1-Tunnel0/0/0]ospf dr-priority 100

[r2-LoopBack0]int tu 0/0/0
[r2-Tunnel0/0/0]ospf dr-priority 0

[r3-LoopBack0]int tu 0/0/0
[r3-Tunnel0/0/0]ospf dr-priority 0
在r3上查看邻居

4.ospf为不规则区域，需要在R3和R4上做隧道将area0和area2连通

[r3]interface Tunnel 0/0/1
[r3-Tunnel0/0/1]ip address 200.1.1.1 24
[r3-Tunnel0/0/1]tunnel-protocol gre
[r3-Tunnel0/0/1]source 3.3.3.3
[r3-Tunnel0/0/1]destination 4.4.4.4
[r3-Tunnel0/0/1]q
[r3]osp
[r3]ospf 100
[r3-ospf-100]area 0
[r3-ospf-100-area-0.0.0.0]network 200.1.1.1 0.0.0.0

[r4]interface Tunnel 0/0/0
[r4-Tunnel0/0/0]ip address 200.1.1.2 24
[r4-Tunnel0/0/0]tunnel-protocol gre
[r4-Tunnel0/0/0]source 4.4.4.4
[r4-Tunnel0/0/0]destination 3.3.3.3
[r4-Tunnel0/0/0]q
[r4]osp
[r4]ospf 100
[r4-ospf-100]area 0
[r4-ospf-100-area-0.0.0.0]network 200.1.1.2 0.0.0.0
查看r4路由表

5.r4-r5启用rip200，r6-r7启用rip100，r5和r7上做手工汇总，减少路由条目

[r5]interface g0/0/0
[r5-GigabitEthernet0/0/0]rip summary-address 202.1.0.0 255.255.252.0
[r5-GigabitEthernet0/0/0]rip 200
[r5-rip-200]version 2
[r5-rip-200]network 55.0.0.0
[r5-rip-200]network 202.1.0.0
[r5-rip-200]network 5.0.0.0

[r4]rip 200
[r4-rip-200]version 2
[r4-rip-200]network 55.0.0.0

[r7]interface g0/0/0
[r7-GigabitEthernet0/0/0]rip summary-address 203.1.0.0 255.255.252.0
[r7-GigabitEthernet0/0/0]rip 100
[r7-rip-100]version 2
[r7-rip-100]network 7.0.0.0
[r7-rip-100]network 67.0.0.0
[r7-rip-100]network 203.1.0.0

[r6]rip 100
[r6-rip-100]version 2
[r6-rip-100]network 67.0.0.0

6.全网可达
[r6]ospf 100
[r6-ospf-100]import-route rip 100
[r6-ospf-100]rip 100
[r6-rip-100]import-route ospf 100

[r4]ospf 100
[r4-ospf-100]import-route rip 200
[r4-ospf-100]rip 200
[r4-rip-200]import-route ospf 100

查看r5的路由表

查看r7的路由表

测试