VRRP基本配置拓扑

一、完成PC的基本配置

PC1、PC2、PC3基本配置

二、配置AR1、AR2、AR3各接口的ip地址

1、AR1

[Huawei]sysname AR1
[AR1]INT G0/0/0
[AR1-GigabitEthernet0/0/0]IP address 10.10.10.253 24
[AR1-GigabitEthernet0/0/0]INT G0/0/1
[AR1-GigabitEthernet0/0/1]ip address 192.168.0.2 30

2、AR2

[Huawei]sysname AR2
[AR2]int g0/0/0
[AR2-GigabitEthernet0/0/0]ip address 10.10.10.252 24
[AR2-GigabitEthernet0/0/0]int g0/0/1
[AR2-GigabitEthernet0/0/1]ip address 192.168.0.6 30

3、AR3

[Huawei]sysname AR3
[AR3]int g0/0/0
[AR3-GigabitEthernet0/0/0]ip address 192.168.0.1 30
[AR3-GigabitEthernet0/0/0]int g0/0/1
[AR3-GigabitEthernet0/0/1]ip address 192.168.0.5 30
[AR3-GigabitEthernet0/0/0]int g0/0/2
[AR3-GigabitEthernet0/0/2]ip address 192.168.0.254 24

4、查看路由器各接口的ip地址

AR1

AR2

AR3

三、在AR1、AR2、AR3运行OSPF协议，学习到图中拓扑所包含的所有路由

1、AR1

[AR1]ospf
[AR1-ospf-1]area 0
[AR1-ospf-1-area-0.0.0.0]net    
[AR1-ospf-1-area-0.0.0.0]network 192.168.0.0 0.0.0.255
[AR1-ospf-1-area-0.0.0.0]network 10.10.10.0 0.0.0.255

2、AR2

[AR2]ospf
[AR2-ospf-1]area 0
[AR2-ospf-1-area-0.0.0.0]network 192.168.0.0 0.0.0.255
[AR2-ospf-1-area-0.0.0.0]network 10.10.10.0 0.0.0.255

3、AR3

[AR3]ospf
[AR3-ospf-1]area 0
[AR3-ospf-1-area-0.0.0.0]network 192.168.0.0 0.0.0.255

4、查看路由器通过ospf协议学习到的路由表

AR1

AR2

AR3

四、配置VRRP虚拟网关地址

1、将PC1去往PC3的VRRP的虚拟路由器ID（VRID）设置为10，并且把网关路由器的IP地址设置为10.10.10.254，并让AR1成为VRRP的主用路由器

[AR1]int g0/0/0 
[AR1-GigabitEthernet0/0/0]vrrp vrid 10 virtual-ip 10.10.10.254
[AR1-GigabitEthernet0/0/0]vrrp vrid 10 priority 150

[AR2]int g0/0/0
[AR2-GigabitEthernet0/0/0]vrrp vrid 10 virtual-ip 10.10.10.254

2、将PC2去往PC3的VRRP的虚拟路由器ID（VRID）设置为20，并且把网关路由器的IP地址设置为10.10.10.251,让AR2成为VRRP的主用路由器,且它们之间需要使用密码进行通信。

[AR2]int g0/0/0 
[AR2-GigabitEthernet0/0/0]vrrp vrid 20 virtual-ip 10.10.10.251
[AR2-GigabitEthernet0/0/0]vrrp vrid 20 priority 150
[AR2-GigabitEthernet0/0/0]vrrp vrid 20 authentication-mode simple plain 123456

[AR1]int g0/0/0
[AR1-GigabitEthernet0/0/0]vrrp vrid 20 virtual-ip 10.10.10.251
[AR1-GigabitEthernet0/0/0]vrrp vrid 20 authentication-mode simple plain 123456

3、配置VRRP追踪上行链路

[AR1-GigabitEthernet0/0/0]vrrp vrid 10 track int g0/0/1 reduced 100

[AR2-GigabitEthernet0/0/0]vrrp vrid 20 track int g0/0/1 reduced 100

4、查看AR1、AR2上VRRP的状态

AR1

AR2

五、测试连通性

PC1访问PC3

PC2访问PC3