实验要求：
R1
[R1]undo info-center e
[R1]interface GigabitEthernet0/0/0
[R1-GigabitEthernet0/0/0]ip address 172.16.32.129 29
[R1-GigabitEthernet0/0/0]interface LoopBack0
[R1-LoopBack0]ip address 172.16.33.1 25
R2
[R2]undo info-center e
Info: Information center is disabled.
[R2]interface GigabitEthernet0/0/0
[R2-GigabitEthernet0/0/0]ip address 172.16.32.130 29
[R2-GigabitEthernet0/0/0]interface LoopBack0
[R2-LoopBack0]ip address 172.16.33.129 25
R3
[R3]undo info-center e
Info: Information center is disabled.
[R3]interface GigabitEthernet0/0/0
[R3-GigabitEthernet0/0/0]ip address 172.16.32.131 29
[R3-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R3-GigabitEthernet0/0/1]ip address 34.1.1.1 24
[R3-GigabitEthernet0/0/1]interface LoopBack0
[R3-LoopBack0]ip address 172.16.34.1 25
[R3-LoopBack0]ip address 172.16.34.1 25
Error: The address already exists.
[R3-LoopBack0]interface Tunnel0/0/0
[R3-Tunnel0/0/0]ip address 172.16.0.129 29
R4
[R4]undo info-center e
Info: Information center is disabled.
[R4]interface GigabitEthernet0/0/0
[R4-GigabitEthernet0/0/0]ip address 34.1.1.2 24
[R4-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R4-GigabitEthernet0/0/1]ip address 45.1.1.2 24
[R4-GigabitEthernet0/0/1]interface GigabitEthernet0/0/2
[R4-GigabitEthernet0/0/2]ip address 46.1.1.2 24
[R4-GigabitEthernet0/0/2]interface GigabitEthernet4/0/0
[R4-GigabitEthernet4/0/0]ip address 47.1.1.2 24
[R4-GigabitEthernet4/0/0]interface LoopBack0
[R4-LoopBack0]ip address 4.4.4.4 24
R5
[R5]interface GigabitEthernet0/0/0
[R5-GigabitEthernet0/0/0]ip address 45.1.1.1 24
[R5-GigabitEthernet0/0/0]
[R5-GigabitEthernet0/0/0]
[R5-GigabitEthernet0/0/0]interface LoopBack0
[R5-LoopBack0]ip address 172.16.1.1 25
[R5-LoopBack0]interface Tunnel0/0/0
[R5-Tunnel0/0/0]ip address 172.16.0.130 29
R6
[R6]interface GigabitEthernet0/0/0
[R6-GigabitEthernet0/0/0]ip address 46.1.1.1 24
[R6-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R6-GigabitEthernet0/0/1]ip address 172.16.96.1 30
[R6-GigabitEthernet0/0/1]interface LoopBack0
[R6-LoopBack0]ip address 172.16.1.129 25
[R6-LoopBack0]interface Tunnel0/0/0
[R6-Tunnel0/0/0]ip address 172.16.0.131 29
R7
[R7]interface GigabitEthernet0/0/0
[R7-GigabitEthernet0/0/0]ip address 47.1.1.1 24
[R7-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R7-GigabitEthernet0/0/1]ip address 172.16.64.1 30
[R7-GigabitEthernet0/0/1]interface LoopBack0
[R7-LoopBack0]ip address 172.16.2.1 25
[R7-LoopBack0]interface Tunnel0/0/0
[R7-Tunnel0/0/0]ip address 172.16.0.132 29
R8
[R8]interface GigabitEthernet0/0/0
[R8-GigabitEthernet0/0/0]ip address 172.16.64.2 30
[R8-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R8-GigabitEthernet0/0/1]ip address 172.16.64.5 30
[R8-GigabitEthernet0/0/1]interface LoopBack0
[R8-LoopBack0]ip address 172.16.65.1 25
R9
R9]interface GigabitEthernet0/0/0
[R9-GigabitEthernet0/0/0]ip address 172.16.64.6 30
[R9-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R9-GigabitEthernet0/0/1]ip address 172.16.128.1 30
[R9-GigabitEthernet0/0/1]interface LoopBack0
[R9-LoopBack0]ip address 172.16.129.1 25
R10
[R10]interface GigabitEthernet0/0/0
[R10-GigabitEthernet0/0/0]
[R10-GigabitEthernet0/0/0]
[R10-GigabitEthernet0/0/0]ip address 172.16.128.2 30
[R10-GigabitEthernet0/0/0]interface LoopBack0
[R10-LoopBack0]ip address 172.16.129.129 25
R11
[R11]interface GigabitEthernet0/0/0
[R11-GigabitEthernet0/0/0]ip address 172.16.96.2 30
Error: Unrecognized command found at '^' position.
[R11-GigabitEthernet0/0/0]interface GigabitEthernet0/0/1
[R11-GigabitEthernet0/0/1]ip address 172.16.96.5 30
[R11-GigabitEthernet0/0/1]interface LoopBack0
[R11-LoopBack0]ip address 172.16.97.1 25
R12
[R12]interface GigabitEthernet0/0/0
[R12-GigabitEthernet0/0/0]ip address 172.16.96.6 30
[R12-GigabitEthernet0/0/0]interface LoopBack0
[R12-LoopBack0]ip address 172.16.160.1 20
[R12-LoopBack0]interface LoopBack1
[R12-LoopBack1]ip address 172.16.176.1 20
[R12-LoopBack1]ip route-static 172.16.160.0 19 NULL0
[R12]ip route-static 172.16.160.0 19 NULL0
一、建立缺省路由
[R3] ip route-static 0.0.0.0 0 34.1.1.2
[R5] ip route-static 0.0.0.0 0 45.1.1.2
[R6] ip route-static 0.0.0.0 0 46.1.1.2
[R7] ip route-static 0.0.0.0 0 47.1.1.2
二、建立虚拟端口
R3
int Tunnel 0/0/0
ip add 172.16.0.129 29
tunnel-protocol gre p2mp
source 34.1.1.1
dis nhrp peer all
R5
int Tunnel 0/0/0
ip add 172.16.0.130 29
tunnel-protocol gre p2mp
source GigabitEthernet 0/0/0
nhrp entry 172.16.0.129 34.1.1.1 register
R6
int Tunnel 0/0/0
ip add 172.16.0.131 29
tunnel-protocol gre p2mp
source GigabitEthernet 0/0/0
nhrp entry 172.16.0.129 34.1.1.1 register
R7
int Tunnel 0/0/0
ip add 172.16.0.132 29
tunnel-protocol gre p2mp
source GigabitEthernet 0/0/0
nhrp entry 172.16.0.129 34.1.1.1 register
[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]nhrp entry multicast dynamic
[R3]dis nhrp peer all
三、配置ospf协议
[R1]
ospf 1 router-id 1.1.1.1
area 1
net 172.16.32.0 0.0.1.255
[R2]
ospf 1 router-id 2.2.2.2
area 1
net 172.16.32.0 0.0.1.255
[R3]
ospf 1 router-id 3.3.3.3
area 0
net 172.16.0.129 0.0.0.0
area 1
net 172.16.32.0 0.0.3.255
[R5]
ospf 1 router-id 5.5.5.5
area 0
net 172.16.0.0 0.0.1.255
[R6]
ospf 1 router-id 6.6.6.6
area 0
net 172.16.0.0 0.0.1.255
area 2
net 172.16.96.1 0.0.0.0
[R7]
ospf 1 router-id 7.7.7.7
area 0
net 172.16.0.0 0.0.3.255
area 3
net 172.16.64.1 0.0.0.0
[R8]
ospf 1 router-id 8.8.8.8
area 3
net 172.16.64.0 0.0.1.255
[R9]
ospf 1 router-id 9.9.9.9
area 3
net 172.16.64.6 0.0.0.0
area 4
net 172.16.128.0 0.0.1.255
[R10]
ospf 1 router-id 10.10.10.10
area 4
net 172.16.128.0 0.0.1.255
[R11]
ospf 1 router-id 11.11.11.11
area 2
net 172.16.96.0 0.0.1.255
[R12]
ospf 1 router-id 12.12.12.12
area 2
net 172.16.96.6 0.0.0.0
rip 1
vers 2
net 172.16.0.0
四、更改接口类型：dis ospf interface Tunnel 0/0/0
[R3]
int Tunnel 0/0/0
ospf network-type broadcast
[R5]int Tunnel 0/0/0
ospf network-type broadcast
[R6]int Tunnel 0/0/0
[R6-Tunnel0/0/0]ospf network-type broadcast
[R7]int Tunnel 0/0/0
[R7-Tunnel0/0/0]ospf network-type broadcast
五、修改其他路由的优先级，让R3称为DR
[R5]int Tunnel 0/0/0
[R5-Tunnel0/0/0]ospf dr-priority 0
[R6]int Tunnel 0/0/0
[R6-Tunnel0/0/0]ospf dr-priority 0
[R7]int Tunnel 0/0/0
[R7-Tunnel0/0/0]ospf dr-priority 0
六、进程重发布：
R9
ospf 1
area 4
undo net 172.16.128.0 0.0.1.255
ospf 2
area 4
net 172.16.128.0 0.0.1.255
ospf 1
import-route ospf 2
ospf 2
import-route ospf 1
[R12]ospf 1
import-route rip
七、LSA路由优化路由汇总：
[R3]
ospf 1
area 1
abr-summary 172.16.32.0 255.255.224.0
[R7]
ospf 1
area 3
abr-summary 172.16.64.0 255.255.224.0
[R6]
ospf 1
area 2
abr-summary 172.16.96.0 255.255.224.0
[R12]
ospf 1
asbr-summary 172.16.160.0 255.255.224.0
[R9]
ospf 1
asbr-summary 172.16.128.0 255.255.224.0
八、配置末梢区域：
[R1]
ospf 1
area 1
stub
[R2]
ospf 1
area 1
stub
[R3]
ospf 1
area 1
stub no-summary
[R6]
ospf 1
area 2
nssa no-summary
[R7]
ospf 1
area 3
nssa no-su
nssa no-summary
[R8]
ospf 1
area 3
nssa
[R9]
ospf 1
area 3
nssa
[R11]
ospf 1
area 2
nssa
[R12]
ospf 1
area 2
nssa
[R9]ospf 2
[R9-ospf-2]undo import-route ospf 1
[R9-ospf-2]default-route-advertise
九、公网部分配置：
[R3] ip route-static 172.16.32.0 19 NULL 0
[R6] ip route-static 172.16.96.0 19 NULL 0
[R7] ip route-static 172.16.64.0 19 NULL 0
[R9] ip route-static 172.16.128.0 19 NULL 0
[R12] ip route-static 172.16.160.0 19 NULL 0
[R3]
acl 2000
rule permit source 172.16.0.0 0.0.255.255
int g0/0/1
nat outbound 2000
[R6]
acl 2000
rule permit source 172.16.0.0 0.0.255.255
int g0/0/0
nat outbound 2000
[R7]
acl 2000
rule permit source 172.16.0.0 0.0.255.255
int g0/0/0
nat outbound 2000
测试：任意区域路由器去上网
