配置OSPF

1，配置IP地址

iou1：
interface ethernet 0/0
ip address 10.0.12.1 255.255.255.0
no shutdown
exit
interface ethernet 0/1
ip address 10.0.13.1 255.255.255.0
no shutdwn
exit
interface loopback 0
ip address 1.1.1.1 255.255.255.0
exit

iou2：
interface ethernet 0/0
ip address 10.0.12.2 255.255.255.0
no shutdown
exit
interface ethernet 0/1
ip address 10.0.24.1 255.255.255.0
no shutdown
exit
interface loopback 0
ip address 2.2.2.2 255.255.255.0
no shutdown
exit

iou3:
interface ethernet 0/0
ip address 10.0.13.2 255.255.255.0
no shutdown
exit
interface ethernet 0/1
ip address 10.0.34.1 255.255.255.0
no shutdow
exit
interface loopback 0
ip address 3.3.3.3 255.255.255.0
no shutdown
exit

interface ethernet 0/0
ip address 10.0.24.2 255.255.255.0
no shutdown
exit
interface ethernet 0/1
ip address 10.0.34.1 255.255.255.0
no shutdown
exit
interface loopback 0
ip address 4.4.4.4 255.255.255.0
exit

2配置OSPF

iou1：
router ospf 1
network 1.1.1.1 0.0.0.0 area 0
network 10.0.12.0 0.0.0.255 area 0
network 10.0.13.0 0.0.0.255 area 0
exit

iou2：
router ospf 1
network 2.2.2.2 0.0.0.0 area 0
network 10.0.12.0 0.0.0.255 area 0
network 10.0.24.0 0.0.0.255 area 0
exit

iou3:
router ospf 1
network 3.3.3.3 0.0.0.0 area 0
network 10.0.13.0 0.0.0.255 area 0
network 10.0.34.0 0.0.0.255 area 0
exit

iou4:
router ospf 1
network 4.4.4.4 0.0.0.0 area 0
network 10.0.24.0 0.0.0.255 area 0
network 10.0.34.0 0.0.0.255 area 0
exit