MGBF结合OSPF--HCIA-阿里云开发者社区

MGBF结合OSPF--HCIA

2023-07-29 36

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简介： MGBF结合OSPF--HCIA

一、R6为ISP只能配置IP地址，R1-R5的环回为私有网段

1.首先给各个设备分配IP并设置缺省使全网可达，并用ping命令检查

二，R1/2/3为星型的拓扑结构（MGRE），R1为中心站点

[r1]int Tunnel 0/0/0
[r1-Tunnel0/0/0]ip add 192.168.7.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r1-Tunnel0/0/0]source 16.0.0.1
Sep 18 2022 18:43:45-08:00 r1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[r1-Tunnel0/0/0]nhrp network-id 100

[r2]int t0/0/0
[r2-Tunnel0/0/0]ip add 192.168.7.2 24 
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r2-Tunnel0/0/0]source GigabitEthernet 0/0/0
Sep 18 2022 18:44:47-08:00 r2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state.  
[r2-Tunnel0/0/0]nhrp network-id 100
[r2-Tunnel0/0/0]nhrp entry 192.168.7.1 16.0.0.1 register

[r3]int t0/0/0
[r3-Tunnel0/0/0]ip add 192.168.7.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r3-Tunnel0/0/0]source GigabitEthernet 0/0/0
Sep 18 2022 18:46:16-08:00 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 192.168.7.1 16.0.0.1 register

三，R1/4/5为全连的MGRE结构

1.以R1为中心

R1配置

[r1]int t0/0/1
[r1-Tunnel0/0/1]ip add 192.168.8.1 24
[r1-Tunnel0/0/1]tunnel-protocol gre p2mp
[r1-Tunnel0/0/1]source 61.0.0.1
Sep 18 2022 19:00:23-08:00 r1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/1 has entered the UP state.  
[r1-Tunnel0/0/1]nhrp network-id 200

[r4]int t0/0/1
[r4-Tunnel0/0/1]ip add 192.168.8.2 24
[r4-Tunnel0/0/1]tunnel-protocol gre p2mp
[r4-Tunnel0/0/1]source g0/0/0
Sep 18 2022 19:02:34-08:00 r4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/1 has entered the UP state. 
[r4-Tunnel0/0/1]nhrp network-id 200
[r4-Tunnel0/0/1]nhrp entry 192.168.8.1 61.0.0.1 register

[r5]int t0/0/1
[r5-Tunnel0/0/1]ip add 192.168.8.3 24 
[r5-Tunnel0/0/1]tunnel-protocol gre p2mp 
[r5-Tunnel0/0/1]source g0/0/0
Sep 18 2022 19:03:48-08:00 r5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/1 has entered the UP state. 
[r5-Tunnel0/0/1]nhrp network-id 200
[r5-Tunnel0/0/1]nhrp entry 192.168.8.1 61.0.0.1 register

2.以R4为中心

[r4-Tunnel0/0/1]source 46.0.0.1
[r4-Tunnel0/0/1]nhrp network-id 400

[r1-Tunnel0/0/1]source g0/0/0
[r1-Tunnel0/0/1]nhrp network-id 400
[r1-Tunnel0/0/1]nhrp entry 192.168.8.2 46.0.0.1 register

[r5-Tunnel0/0/1]source g0/0/0
[r5-Tunnel0/0/1]nhrp network-id 400
[r5-Tunnel0/0/1]nhrp entry 192.168.8.2 46.0.0.1 register

3.以R5为中心

[r5-Tunnel0/0/1]source 56.0.0.1
[r5-Tunnel0/0/1]nhrp network-id 500

[r1-Tunnel0/0/1]nhrp network-id 500 
[r1-Tunnel0/0/1]nhrp entry 192.168.8.3 56.0.0.1 register

[r4-Tunnel0/0/1]nhrp network-id 500
[r4-Tunnel0/0/1]nhrp entry 192.168.8.3 56.0.0.1 register

四，所有私有网段可以互相通讯，使用OSPF完成

## 由于MGRE环境不支持组播，所以需要开启伪广播
[r1-Tunnel0/0/0]nhrp entry multicast dynamic
## 在R1-5上开启OSPF
## 由于通道p2p为点到点所以改为 broadcast
ospf network-type broadcast
# 需进入每个接口修改

最后查看路由表且所有私有网段可互相通讯