单区域OSPF的配置
实验拓扑：
#AR3的配置：
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.1.254 24
[Huawei-GigabitEthernet0/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.4.1 24
[Huawei-GigabitEthernet0/0/1]q
[Huawei]ospf 1 router-id 1.1.1.1
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255#AR4的配置：
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.4.2 24
[Huawei-GigabitEthernet0/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.2.254 24
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip add 192.168.5.1 24
[Huawei-GigabitEthernet0/0/2]q
[Huawei]ospf 1 router-id 2.2.2.2
[Huawei-ospf-1]a 0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255#AR5的配置：
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.3.254 24
[Huawei-GigabitEthernet0/0/1]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.5.2 24
[Huawei-GigabitEthernet0/0/0]q
[Huawei]ospf 1 router-id 3.3.3.3
[Huawei-ospf-1]a 0
[Huawei-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
多区域OSPF的配置
实验拓扑：
[AR1]int g0/0/1
[AR1-GigabitEthernet0/0/1]ip add 192.168.1.254 24
[AR1]int g0/0/0
[AR1-GigabitEthernet0/0/0]ip add 10.0.45.1 24
[AR1]ospf 1 router-id 1.1.1.1
[AR1-ospf-1]area 1
[AR1-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
[AR1-ospf-1-area-0.0.0.1]network 10.0.45.0 0.0.0.255[AR2]int g0/0/2
[AR2-GigabitEthernet0/0/2]ip add 192.168.2.254 24
[AR2-GigabitEthernet0/0/2]int g0/0/1
[AR2-GigabitEthernet0/0/1]ip add 10.0.45.2 24
[AR2-GigabitEthernet0/0/1]int g0/0/0
[AR2-GigabitEthernet0/0/0]ip add 10.0.24.2 24
[AR2]ospf 1 router-id 2.2.2.2
[AR2-ospf-1]area 1
[AR2-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
[AR2-ospf-1-area-0.0.0.1]network 10.0.45.0 0.0.0.255
[AR2-ospf-1-area-0.0.0.1]area 0
[AR2-ospf-1-area-0.0.0.0]network 10.0.24.0 0.0.0.255[AR3]int g0/0/0
[AR3-GigabitEthernet0/0/0]ip add 10.0.24.3 24
[AR3-GigabitEthernet0/0/0]int g0/0/1
[AR3-GigabitEthernet0/0/1]ip add 10.0.123.3 24
[AR3]ospf 1 router-id 3.3.3.3
[AR3-ospf-1]area 0
[AR3-ospf-1-area-0.0.0.0]network 10.0.24.0 0.0.0.255
[AR3-ospf-1]area 2
[AR3-ospf-1-area-0.0.0.2]network 10.0.123.0 0.0.0.255[AR9]int g0/0/0
[AR9-GigabitEthernet0/0/0]ip add 10.0.123.9 24
[AR9-GigabitEthernet0/0/0]q
[AR9]ospf 1 router-id 9.9.9.9
[AR9-ospf-1]area 2
[AR9-ospf-1-area-0.0.0.2]network 10.0.123.0 0.0.0.255[AR8]int g0/0/0
[AR8-GigabitEthernet0/0/0]ip add 10.0.123.8 24
[AR8-GigabitEthernet0/0/0]q
[AR8]ospf 1 router-id 8.8.8.8
[AR8-ospf-1]area 2
[AR8-ospf-1-area-0.0.0.2]network 10.0.123.0 0.0.0.255
[AR8-ospf-1-area-0.0.0.2]network 192.168.5.0 0.0.0.255
