29、OSPF配置实验之被动接口

1、被动接口解析

当我们不想某个接口收发OSPF报文时，我们可以在OSPF路由进程下将其配置成被动接口。network通告路由和发送hello包，当我们将接口配置成被动接口后，它只是不收发hello报文而已，网络还是会通告出来，其他路由器同样可以学到路由。

2、实验拓扑

3、实验配置

R1配置

interface Loopback0

ip address 1.1.1.1 255.255.255.0

interface Ethernet0/0

ip address 192.168.0.1 255.255.255.0

interface Ethernet0/1

ip address 192.168.1.1 255.255.255.0

interface Ethernet0/2

ip address 192.168.2.1 255.255.255.0

interface Ethernet0/3

ip address 192.168.3.1 255.255.255.0

interface Ethernet1/0

ip address 192.168.4.1 255.255.255.0

interface Ethernet1/1

ip address 192.168.5.1 255.255.255.0

router ospf 110

network 1.1.1.0 0.0.0.255 area 0

network 192.168.0.0 0.0.255.255 area 0

R2配置

interface Loopback0

ip address 2.2.2.2 255.255.255.0

interface Ethernet0/0

ip address 192.168.0.2 255.255.255.0

interface Ethernet0/1

ip address 192.168.1.2 255.255.255.0

interface Ethernet0/2

ip address 192.168.2.2 255.255.255.0

interface Ethernet0/3

ip address 192.168.3.2 255.255.255.0

interface Ethernet1/0

ip address 192.168.4.2 255.255.255.0

interface Ethernet1/1

ip address 192.168.5.2 255.255.255.0

router ospf 110

network 2.2.2.0 0.0.0.255 area 0

network 192.168.0.0 0.0.255.255 area 0

4、被动接口测试

比如我们想R1的lo0口不收发hello包，但是R1还是可以学到R1的lo0口的路由，我们可以这样做。