OSPF多域配置

Posted 2022-05-12 BE冢虎

实验要求：

使用OSPF实现各路由器互通，并且避免由于网段变更导致的重复步骤。

实验规划：

实验拓扑：

地址规划：

IOU1	e0/0:10.0.0.1/30	loopback 0:1.1.1.1/32
	e0/1:10.0.0.5/30	loopback 1:192.168.1.1/24
	e0/2:10.0.0.9/30
IOU2	e0/0:10.0.0.2/30	loopback 0:2.2.2.2/32
		loopback 1:192.168.2.1/24
IOU3	e0/0:10.0.0.6/30	loopback 0:3.3.3.3/32
		loopback 1:192.168.3.1/24
IOU4	e0/0:10.0.0.10/30	loopback 0:4.4.4.4/43
		loopback 1:192.168.4.1/24

实验步骤：

1. 配置路由器接口地址，Loopback接口。
2. 配置OSPF协议，实现内部网络互通。
3. 验证网络访问是否正常。

实验配置：

（部分注释可参见上篇博客）

IOU1：

config terminal
interface e0/0
ip address 10.0.0.1 255.255.255.252
no shutdown
interface e0/1
ip address 10.0.0.5 255.255.255.252
no shutdown
interface e0/2
ip address 10.0.0.9 255.255.255.252
no shutdown
interface loopback 0
ip address 1.1.1.1 255.255.255.255
no shutdown
interface loopback 1
ip address 192.168.1.1 255.255.255.0
no shutdown
exit
router ospf 1   //启动OSPF路由进程
router-id 1.1.1.1  //配置Router ID
network 10.0.0.0 0.0.0.3 area 1  //指定协议运行接口和区域
network 10.0.0.4 0.0.0.3 area 0
network 10.0.0.8 0.0.0.3 area 2
network 1.1.1.1 0.0.0.0 area 0
network 192.168.1.0 0.0.0.255 area 0
exit

IOU2:

config terminal
interface e0/0
ip address 10.0.0.2 255.255.255.252
no shutdown
interface loopback 0
ip address 2.2.2.2 255.255.255.255
no shutdown
interface loopback 1
ip address 192.168.2.1 255.255.255.0
no shutdown
exit
router ospf 1
router-id 2.2.2.2
network 10.0.0.0 0.0.0.3 area 1
network 2.2.2.2 0.0.0.0 area 1
network 192.168.2.0 0.0.0.255 area 1
exit

IOU3:

config terminal
interface e0/0
ip address 10.0.0.6 255.255.255.252
no shutdown
interface loopback 0
ip address 3.3.3.3 255.255.255.255
no shutdown
interface loopback 1
ip address 192.168.3.1 255.255.255.0
no shutdown
exit
router ospf 1
router-id 3.3.3.3
network 10.0.0.6 0.0.0.3 area 0
network 3.3.3.3 0.0.0.0 area 0
network 192.168.3.0 0.0.0.255 area 0
exit

IOU4：

config terminal
interface e0/0
ip address 10.0.0.10 255.255.255.252
no shutdown
interface loopback 0
ip address 4.4.4.4 255.255.255.255
no shutdown
interface loopback 1
ip address 192.168.4.1 255.255.255.0
no shutdown
exit
router ospf 1
router-id 4.4.4.4
network 10.0.0.8 0.0.0.3 area 2
network 4.4.4.4 0.0.0.0 area 2
network 192.168.4.0 0.0.0.255 area 2
exit

查看路由表：

exit
show ip route

验证互通性（IOU1）：

ping 2.2.2.2
ping 3.3.3.3
ping 4.4.4.4

（如有疏漏，还望读者指出）