实验室之OSPF篇：理解OSPF中的network命令

　　• 如果多个OSPF network命令出现重复会怎么办?

　　• 怎么来验证某个接口属于哪个area?

　　最终配置和验证：

　　R1:

　　interface Loopback0

　　ip address 10.10.10.10 255.255.255.255

　　!

　　interface Loopback1

　　ip address 10.10.10.1 255.255.255.255

　　!

　　interface Loopback2

　　ip address 10.10.10.255 255.255.255.255

　　!

　　interface Loopback3

　　ip address 10.10.0.0 255.255.255.255

　　!

　　interface Loopback4

　　ip address 10.10.15.255 255.255.255.255

　　!

　　interface Loopback5

　　ip address 10.9.255.255 255.255.255.255

　　!

　　interface Loopback6

　　ip address 10.10.16.0 255.255.255.255

　　!

　　interface Loopback7

　　ip address 1.0.0.0 255.255.255.255

　　!

　　interface Loopback8

　　ip address 223.255.255.255 255.255.255.255

　　!

　　router ospf 1

　　network 10.10.10.10 0.0.0.0 area 0

　　network 10.10.10.0 0.0.0.255 area 1

　　network 10.10.0.0 0.0.15.255 area 2

　　network 0.0.0.0 255.255.255.255 area 3

　　R1#show ip ospf interface | include (Loopback[0-8]|Area)

　　Loopback0 is up, line protocol is up

　　Internet Address 10.10.10.10/32, Area 0

　　Loopback2 is up, line protocol is up

　　Internet Address 10.10.10.255/32, Area 1

　　Loopback1 is up, line protocol is up

　　Internet Address 10.10.10.1/32, Area 1

　　Loopback4 is up, line protocol is up