MGRE环境下的OSPF实验

一、实验要求

二、拓扑的搭建，以及IP的配置

三、实验内容

1、配置IP

[R1-GigabitEthernet0/0/0]ip address 15.0.0.1 24

[R1-GigabitEthernet0/0/1]ip address 65.0.0.1 24

[R1-LoopBack0]ip address 192.168.1.1 24

[R2-GigabitEthernet0/0/0]ip address 25.0.0.1 24

[R2-LoopBack0]ip address 192.168.2.1 24

R3/R4/R5同上

[ISP-LoopBack0]ip address 5.5.5.1 24

[ISP-GigabitEthernet0/0/0]ip address 15.0.0.2 24

[ISP-GigabitEthernet0/0/1]ip address 65.0.0.2 24

[ISP-GigabitEthernet4/0/2]ip address 25.0.0.2 24

[ISP-GigabitEthernet4/0/1]ip address 35.0.0.2 24

[ISP-GigabitEthernet4/0/0]ip address 45.0.0.2 24

[ISP-GigabitEthernet0/0/2]ip address 55.0.0.2 24

验证

2、缺省路由

命令：ip route-static 0.0.0.0 0 25.0.0.2

验证

R1/R3/R4/R5同上

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

[R4]int t0/0/0
[R4-Tunnel0/0/0]ip address 192.168.6.2 24  
[R4-Tunnel0/0/0]tunnel-protocol gre p2mp
[R4-Tunnel0/0/0]source 45.0.0.1
Jul 10 2024 21:46:43-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/0 has entered the UP state.
[R4-Tunnel0/0/0]nhrp network-id 100
[R4-Tunnel0/0/0]nhrp entry 192.168.6.1 15.0.0.1 register
Info: Peer entry exists already.

R1/R4/R5同上

验证

[R2-Tunnel0/0/1]ip address 192.168.6.2 24
[R2-Tunnel0/0/1]tunnel-protocol gre p2mp
[R2-Tunnel0/0/1]nhrp network-id 100
[R2-Tunnel0/0/1]source GigabitEthernet 0/0/0
Jul 10 2024 22:03:35-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/1 has entered the UP state.
[R2-Tunnel0/0/1]nhrp entry 192.168.7.1 65.0.0.1 register

R1/R2/R3同上

验证

4、所有私有网段可以互相通讯，私有网段使用OSPF来完成

[R2]ospf router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

[R2]int t0/0/1
[R2-Tunnel0/0/1]ospf network-type broadcast

[R2-Tunnel0/0/1]int t0/0/1
[R2-Tunnel0/0/1]ospf dr-priority 0

R1-R5同上

验证