HCIP-ospf5综合实验

一、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、R1/4/5为全连的MGRE结构，R1/2/3为星型的拓扑结构，R1为中心站点

3、所有私有网段可以相互通讯，私有网段使用OSPF协议完成

 

二、实验过程

（1）划分网段配置ip

[r1]interface GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]ip address 12.1.1.2 24
[r1-GigabitEthernet0/0/1]interface GigabitEthernet 0/0/0
[r1-GigabitEthernet0/0/0]ip address 13.1.1.2 24
[r1-GigabitEthernet0/0/0]q

[r1]interface LoopBack 0
[r1-LoopBack0]ip address 192.168.1.1 24

[r2]interface LoopBack 0
[r2-LoopBack0]ip address 192.168.2.1 24
[r2-LoopBack0]q
[r2]interface GigabitEthernet 0/0/0
[r2-GigabitEthernet0/0/0]ip address 14.1.1.2 24

[r3]interface GigabitEthernet 0/0/0
[r3-GigabitEthernet0/0/0]ip address 15.1.1.2 24
[r3-GigabitEthernet0/0/0]q
[r3]interface LoopBack 0
[r3-LoopBack0]ip address 192.168.3.1 24

[r4]interface GigabitEthernet 0/0/0
[r4-GigabitEthernet0/0/0]ip address 16.1.1.2 24
[r4-GigabitEthernet0/0/0]q
[r4]interface LoopBack 0
[r4-LoopBack0]ip address 192.168.4.1 24

[r5]interface GigabitEthernet 0/0/0
[r5-GigabitEthernet0/0/0]ip address 17.1.1.2 24
[r5-GigabitEthernet0/0/0]q
[r5]interface LoopBack 0
[r5-LoopBack0]ip address 192.168.5.1 24

[r6]interface GigabitEthernet 0/0/1
[r6-GigabitEthernet0/0/1]ip address 12.1.1.1 24
[r6-GigabitEthernet0/0/1]interface GigabitEthernet 0/0/0
[r6-GigabitEthernet0/0/0]ip address 13.1.1.1 24
[r6-GigabitEthernet0/0/0]interface GigabitEthernet 0/0/2
[r6-GigabitEthernet0/0/2]ip address 17.1.1.1 24
[r6-GigabitEthernet0/0/2]interface GigabitEthernet 2/0/0
[r6-GigabitEthernet2/0/0]ip address 14.1.1.1 24
[r6-[r6-GigabitEthernet3/0/0]ip address 16.1.1.1 24         
[r6-GigabitEthernet4/0/0]ip address 15.1.1.1 24

（2）配置缺省指向R6

[r1]ip route-static 0.0.0.0 0 12.1.1.1
[r1]ip route-static 0.0.0.0 0 13.1.1.1
[r2]ip route-static 0.0.0.0 0 14.1.1.1
[r3]ip route-static 0.0.0.0 0 15.1.1.1

[r4]ip route-static 0.0.0.0 0 16.1.1.1 

[r5]ip route-static 0.0.0.0 0 17.1.1.1 

（4）中心站点配置（星型）

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 10.1.1.1 255.255.255.0
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r1-Tunnel0/0/0]source 13.1.1.2
[r1-Tunnel0/0/0]nhrp entry multicast dynamic 
[r1-Tunnel0/0/0]nhrp network-id 100

分支1：

[r2]interface Tunnel 0/0/0
[r2-Tunnel0/0/0]ip address 10.1.1.2 255.255.255.0
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r2-Tunnel0/0/0]nhrp network-id 100
[r2-Tunnel0/0/0]source GigabitEthernet 0/0/0 
[r2-Tunnel0/0/0]nhrp entry 10.1.1.1 13.1.1.2 register 

[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip address 10.1.1.3 255.255.255.0
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r3-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]nhrp entry 10.1.1.1 13.1.1.2 register 

<r1>display nhrp peer all

 配置OSPF

[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 0
[r1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255

[r1-ospf-1-area-0.0.0.0]network 10.1.1.1 0 0.0.0.255

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

[r1-ospf-1-area-0.0.0.0]network 10.1.1.2 0.0.0.0.255

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255

[r1-ospf-1-area-0.0.0.0]network 10.1.1.3 0.0.0.255

修改优先级干涉dr选举让R1成为DR

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ospf dr-priority 100

重启OSPF进程

<r1>reset ospf process 

<r2>reset ospf process 

<r3>reset ospf process 

全连接（r1、r4、r5）

启动Tunnel0/0/1接口

[r1]interface Tunnel 0/0/1
[r1-Tunnel0/0/1]ip address 20.1.1.1 24           
[r1-Tunnel0/0/1]tunnel-protocol gre p2mp 
[r1-Tunnel0/0/1]source 12.1.1.2
[r1-Tunnel0/0/1]nhrp entry multicast dynamic     
[r1-Tunnel0/0/1]nhrp network-id 100

[r4]interface Tunnel 0/0/0
[r4-Tunnel0/0/0]ip address 20.1.1.2 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp n
[r4-Tunnel0/0/0]nhrp network-id 100
[r4-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r4-Tunnel0/0/0]nhrp entry 20.1.1.1 12.1.1.2 register 

[r5]interface Tunnel 0/0/0
[r5-Tunnel0/0/0]ip address 20.1.1.3 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r5-Tunnel0/0/0]nhrp network-id 100
[r5-Tunnel0/0/0]source GigabitEthernet 0/0/0
[r5-Tunnel0/0/0]nhrp entry 20.1.1.1 12.1.1.2 register 

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 20.1.1.1 0.0.0.255

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 1
[r4-ospf-1-area-0.0.0.1]network 20.1.1.2 0.0.0.255
[r4-ospf-1-area-0.0.0.1]network 192.168.4.0 0.0.0.255

[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]area 1
[r5-ospf-1-area-0.0.0.1]network 20.1.1.3 0.0.0.255
[r5-ospf-1-area-0.0.0.1]network 192.168.5.0 0.0.0.255

测试