OSPF环境下的MGER实验-优快云博客

本文链接：https://blog.youkuaiyun.com/LOXOI/article/details/135916768

本文详细描述了一项实验，涉及配置基础网络结构（IP地址和缺省路由），搭建MGRE（多标签GRE隧道）环境，以及使用OSPF实现全网可达，同时调整R1、R5、R6设备的网络类型以统一中心角色和P2MP配置。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1.实验要求：

2.实验步骤：

2.1完成基础配置：

根据实验要求先完成各基础配置，再进行后续的操作

2.1.1 IP的配置

R1:

R3:

R4：

R5:

R6 :

R2 :将R2设置为ISP路由

2.1.2 缺省路由的配置

[R1]ip route-static 0.0.0.0 0 12.0.0.2
[R1]ip route-static 0.0.0.0 0 21.0.0.2

[R3]ip route-static 0.0.0.0 0 23.0.0.2

[R4]ip route-static 0.0.0.0 0 24.0.0.2

[R5]ip route-static 0.0.0.0 0 25.0.0.2

[R6]ip route-static 0.0.0.0 0 26.0.0.2

2.2 搭建R1-R3-R4全连的MGRE环境

R1:

[R1]int t0/0/0

[R1-Tunnel0/0/0]ip address 192.168.2.1 24

[R1-Tunnel0/0/0]tunnel-protocol gre p2mp

[R1-Tunnel0/0/0]source 21.0.0.1

[R1-Tunnel0/0/0]nhrp network-id 6

[R1-Tunnel0/0/0]nhrp entry multicast dynamic

[R1-Tunnel0/0/0]nhrp entry 192.168.2.3 23.0.0.1 register

[R1-Tunnel0/0/0]nhrp entry 192.168.2.3 24.0.0.1 register

R3:

[R3]int t 0/0/0
[R3-Tunnel0/0/0]ip address 192.168.2.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source 23.0.0.1
[R3-Tunnel0/0/0]nhrp entry multicast dynamic
[R3-Tunnel0/0/0]nhrp network-id 6
[R3-Tunnel0/0/0]nhrp entry 192.168.2.1 21.0.0.1 register
[R3-Tunnel0/0/0]nhrp entry 192.168.4.1 24.0.0.1 register

R4:

[R4]int t 0/0/0
[R4-Tunnel0/0/0]ip address 192.168.2.4 24
[R4-Tunnel0/0/0]tunnel-protocol gre p2mp
[R4-Tunnel0/0/0]source 24.0.0.1
[R4-Tunnel0/0/0]nhrp network-id 6
[R4-Tunnel0/0/0]nhrp entry multicast dynamic
[R4-Tunnel0/0/0]nhrp entry 192.168.2.1 21.0.0.1 register
[R4-Tunnel0/0/0]nhrp entry 192.168.2.3 23.0.0.1 register

2.3 建立R1-R5-R6hub-spoke的MGRE环境，其中R1为中心

R1:

[R1]int t 0/0/1
[R1-Tunnel0/0/1]ip address 192.168.7.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre p2mp
[R1-Tunnel0/0/1]source 12.0.0.1
[R1-Tunnel0/0/1]nhrp network-id 6
[R1-Tunnel0/0/1]nhrp entry multicast dynamic

R5:

[R5]int t 0/0/0
[R5-Tunnel0/0/0]ip address 192.168.7.5 24
[R5-Tunnel0/0/0]tunnel-protocol gre p2mp
[R5-Tunnel0/0/0]source 25.0.0.1
[R5-Tunnel0/0/0]nhrp network-id 6
[R5-Tunnel0/0/0]nhrp entry 192.168.7.1 12.0.0.1 register

R6:

[R6]int t 0/0/0
[R6-Tunnel0/0/0]ip address 192.168.7.6 24
[R6-Tunnel0/0/0]tunnel-protocol gre p2mp
[R6-Tunnel0/0/0]source 26.0.0.1
[R6-Tunnel0/0/0]nhrp network-id 6
[R6-Tunnel0/0/0]nhrp entry 192.168.7.1 12.0.0.1 register

2.4 R1-R3...R6均存在环回网段模拟用户私网，使用OSPF使全网可达

[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 192.168.2.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 192.168.7.0 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
[R3-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

[R4]ospf 1 router-id 4.4.4.4

[R4-ospf-1]area 0

[R4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255

[R5]ospf 1 router-id 5.5.5.5

[R5-ospf-1]area 0

[R5-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
[R5-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255

[R6]ospf 1 router-id 6.6.6.6

[R6-ospf-1]area 0

[R6-ospf-1-area-0.0.0.0]network 192.168.6.0 0.0.0.255
[R6-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255