HCIP——MGRE环境下的OSPF实验

实验要求： 

1.R6为ISP只能配置IP地址，R1-R5的环回为私有网段
2.R1/R4/R5为全连的MGRE结构，R1/R2/R3为星型的拓扑结构，R1为中心站点
3.所有私有网段可以互相通讯，私有网段使用OSPF完成

步骤一：配置基础IP地址

[R1]interface GigabitEthernet 0/0/0  
[R1-GigabitEthernet0/0/0]ip address 16.0.0.1 24
[R1-GigabitEthernet0/0/0]q
[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]ip address 66.0.0.1 24
[R1-GigabitEthernet0/0/1]q

[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 26.0.0.1 24
[R2-GigabitEthernet0/0/0]q

[R3]interface GigabitEthernet 0/0/0
[R3-GigabitEthernet0/0/0]ip address 36.0.0.1 24=980562Z
[R3-GigabitEthernet0/0/0]q

[R4]interface GigabitEthernet 0/0/0 
[R4-GigabitEthernet0/0/0]ip address 46.0.0.1 24
[R4-GigabitEthernet0/0/0]q

[R5]interface GigabitEthernet 0/0/0
[R5-GigabitEthernet0/0/0]ip address 56.0.0.1 24
[R5-GigabitEthernet0/0/0]q

[ISP]interface GigabitEthernet 0/0/1 
[ISP-GigabitEthernet0/0/1]ip address 66.0.0.2 24
[ISP-GigabitEthernet0/0/1]q
[ISP]interface GigabitEthernet 0/0/0
[ISP-GigabitEthernet0/0/0]ip address 16.0.0.2 24
[ISP-GigabitEthernet