OSPF网络类型实验配置（华为）：

根据实验要求，我们可以把其拆分成为两个部分来做，分别做两个部分的MGRE:

通过拆分可以更加直观的看到路由器之间的信息传输，然后分别做R1,R2,R3和R1,R4,R5的MGRE：

配置：

R1:
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 16.1.1.1 24
[r1-GigabitEthernet0/0/0]int g0/0/1
[r1-GigabitEthernet0/0/1]ip add 61.1.1.1 24
[r1]int lo0
[r1-LoopBack0]ip add 192.168.1.1 24
[r1]ip route-static 0.0.0.0 0 16.1.1.2
[r1]ip route-static 0.0.0.0 0 61.1.1.2
[r1]int Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 10.1.1.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp
[r1-Tunnel0/0/0]source 16.1.1.1
[r1-Tunnel0/0/0]nhrp entry multicast dynamic
[r1-Tunnel0/0/0]nhrp network-id 100
[r1]interface Tunnel 0/0/1
[r1-Tunnel0/0/1]ip address 10.1.2.1 24
[r1-Tunnel0/0/1]tunnel-protocol gre p2mp
[r1-Tunnel0/0/1]nhrp entry multicast dynamic
[r1]rip 1
[r1-rip-1]ver 2
[r1-rip-1]network 192.168.1.0
[r1-rip-1]network 10.0.0.0

R2:
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 26.1.1.1 24
[r2]int lo0
[r2-LoopBack0]ip add 192.168.2.1 24
[r2]ip route-static 0.0.0.0 0 26.1.1.2
[r2]int Tunnel 0/0/0
[r2-Tunnel0/0/0]ip address 10.1.1.2 24
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp
[r2-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r2-Tunnel0/0/0]nhrp entry 10.1.1.1 16.1.1.1 register
[r2-Tunnel0/0/0]nhrp network-id 100

R3:
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 36.1.1.1 24
[r3]int lo0
[r3-LoopBack0]ip add 192.168.3.1 24
[r3]ip route-static 0.0.0.0 0 36.1.1.2
[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip add 10.1.1.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r3-Tunnel0/0/0]nhrp entry 10.1.1.1 16.1.1.1 register
[r3-Tunnel0/0/0]nhrp network-id 100

R4:
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 46.1.1.1 24
[r4]int lo0
[r4-LoopBack0]ip add 192.168.4.1 24
[r4]ip route-static 0.0.0.0 0 46.1.1.2
[r4]int Tunnel 0/0/0
[r4-Tunnel0/0/0]ip address 10.1.2.2 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp
[r4-Tunnel0/0/0]source 46.1.1.1
[r4-Tunnel0/0/0]nhrp entry 10.1.2.1 61.1.1.1 register
[r4-Tunnel0/0/0]nhrp entry 10.1.2.3 56.1.1.1 register
[r4]rip 1
[r4-rip-1]ver 2
[r4-rip-1]network 192.168.4.0
[r4-rip-1]network 10.0.0.0

R5:
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 56.1.1.1 24
[r5]int lo0
[r5-LoopBack0]ip add 192.168.5.1 24
[r5]ip route-static 0.0.0.0 0 56.1.1.2
[r5]int Tunnel 0/0/0
[r5-Tunnel0/0/0]ip add 10.1.2.3 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]source 56.1.1.1
[r5-Tunnel0/0/0]nhrp entry 10.1.2.1 61.1.1.1 register
[r5]rip 1
[r5-rip-1]ver 2
[r5-rip-1]network 192.168.5.0
[r5-rip-1]network 10.0.0.0

R6:
[r6]int g0/0/0
[r6-GigabitEthernet0/0/0]ip add 16.1.1.2 24
[r6-GigabitEthernet0/0/0]int g0/0/1
[r6-GigabitEthernet0/0/1]ip add 26.1.1.2 24
[r6-GigabitEthernet0/0/1]int g0/0/2
[r6-GigabitEthernet0/0/2]ip add 36.1.1.2 24
[r6-GigabitEthernet0/0/2]int g2/0/0
[r6-GigabitEthernet2/0/0]ip add 56.1.1.2 24
[r6-GigabitEthernet2/0/0]int g3/0/0
[r6-GigabitEthernet3/0/0]ip add 46.1.1.2 24
[r6-GigabitEthernet3/0/0]int g4/0/0
[r6-GigabitEthernet4/0/0]ip add 61.1.1.2 24
[r6-GigabitEthernet4/0/0]int lo0
[r6-LoopBack0]ip add 6.6.6.6 24