OSPF综合实验

拓扑图及实验要求

一、子网划分，如下图

 二、实验配置

 （一）、路由器重命名及IP地址配置，以R1为例

• [Huawei]sys r1
• [r1]int g 0/0/0
• [r1-GigabitEthernet0/0/0]ip ad 172.16.0.1 20
• [r1]int LoopBack 0
• [r1-LoopBack0]ip ad 172.16.16.1 20

（二）、搭建r3/r5/r6的MGRE环境

1.中心站点的搭建（R3）

• [r3]int t0/0/0
• [r3-Tunnel0/0/0]ip address 192.168.1.1 24    
• [r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
• [r3-Tunnel0/0/0]source 15.0.0.1 
• Jan 14 2022 21:33:36-08:00 r3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
• on the interface Tunnel0/0/0 has entered the UP state.     
• [r3-Tunnel0/0/0]nhrp network-id 100
• [r3-Tunnel0/0/0]nhrp entry multicast dynamic 

2.分支的配置，R5为例

• [r5]int t0/0/0
• [r5-Tunnel0/0/0]ip address 192.168.1.2 24    
• [r5-Tunnel0/0/0]tunnel-protocol gre p2mp 
• [r5-Tunnel0/0/0]source Serial 4/0/0
• Jan 14 2022 21:36:25-08:00 r5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
• on the interface Tunnel0/0/0 has entered the UP state. t    
• [r5-Tunnel0/0/0]nhrp network-id 100    
• [r5-Tunnel0/0/0]nhrp entry 192.168.1.1 15.0.0.1 register

3.配置R3、R5、R6、R7的缺省指向R4

• [r3]ip route-static 0.0.0.0 0 15.0.0.2
• [r5]ip route-static 0.0.0.0 0 25.0.0.1
• [r6]ip route-static 0.0.0.0 0 35.0.0.1
• [r7]ip route-static 0.0.0.0 0 45.0.0.1

（三）、整个OSPF环境IP基于172.16.0.0/16划分

1.启动OSPF，R1为例

• [r1]ospf 1 router-id 1.1.1.1    
• [r1-ospf-1]area 1
• [r1-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255
• [r1-ospf-1-area-0.0.0.1]network  172.16.16.0 0.0.0.255

2.在R3、R6、R7上做nat设置，以r3为例

• [r3-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
• [r3]interface Serial 4/0/0
• [r3-Serial4/0/0]nat outbound 2000

3.设置area1为末梢区域

• [r1-ospf-1-area-0.0.0.1]stub
• [r2-ospf-1-area-0.0.0.1]stub
• [r3-ospf-1-area-0.0.0.1]stub

4.设置area3为NASS

• [r9-ospf-1]area 3
• [r9-ospf-1-area-0.0.0.1]nssa
• [r7-ospf-1]area 3
• [r7-ospf-1-area-0.0.0.1]nssa no-summary