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1、VRRP实验在这个实验配置了两个VRRP组 vrrp 1和 vrrp 2 。在 vrrp 1 中，路由器 R1 为主虚拟路由器， R2 为备用虚拟路由器；在vrrp 2 中，路由器 R1为备用虚拟路由器，路由器R1 为主虚拟路由器。在两个路由器都正常工作的时候，PC1 和 PC2 通过 R1访问远端 R3。路由器 R1 的具体配置：R1(config-if)#int s1/0R1(config-if)#ip add 200.0.1.1 255.255.255.0R1(config-if)#no shutdownR1(config-if)#int f0/0R1(config-if)#ip add
2、ress 10.0.0.253 255.255.255.0R1(config-if)#no shutdownR1(config-if)#vrrp 1 ip 10.0.0.253R1(config-if)#vrrp 1 priority 200/ Priority change will have no effect whilst interface is VRRP address ownerR1(config-if)#vrrp 1 preemptR1(config-if)#vrrp 2 ip 10.0.0.254R1(config-if)#vrrp 2 priority 100R1(confi
3、g-if)#vrrp 2 preemptR1(config-if)#exitR1(config)#router ripR1(config)#ver 2R1(config)#network 10.0.0.0R1(config)#network 200.0.1.0R1(config)#no auto-summary路由器 R2 的配置：R2(config-if)#int s1/0R2(config-if)# ip address 200.0.2.1 255.255.255.0R2 (config-if)#no shutdownR2 (config-if)#int f0/0R2 (config-if
4、)#ip address 10.0.0.254 255.255.255.0R2 (config-if)#no shutdownR2 (config-if)#vrrp 1 ip 10.0.0.253R2 (config-if)#vrrp 1 priority 150R2 (config-if)#vrrp 1 preemptR2 (config-if)#vrrp 2 ip 10.0.0.254R2 (config-if)#vrrp 2 priority 200R2 (config-if)#vrrp 2 preemptR2 (config-if)#exitR2 (config)#router rip
5、R2 (config)#ver 2R2 (config)#network 10.0.0.0R2 (config)#network 200.0.2.0R2 (config)#no auto-summary路由器 R3 的配置：R3(config-if)#int s0/0R3(config-if)# ip address 200.0.1.2 255.255.255.0R3(config-if)#no shutdownR3(config-if)#int s0/1R3(config-if)# ip address 200.0.2.2 255.255.255.0R3(config-if)#no shut
6、downR3 (config)#router ripR3 (config)#ver 2R3 (config)#network 200.0.1.0R3 (config)#network 200.0.2.0R3 (config)#no auto-summaryR1#show vrrp briInterfaceGrp Pri Time Own Pre State Master addrGroup addrFa0/01255 3003Y Y Master 10.0.0.25310.0.0.253Fa0/02100 3609Y Backup 10.0.0.25410.0.0.254Priority is
7、 255 (cfgd 200)Master Router is 10.0.0.253 (local), priority is 255Master Advertisement interval is 1.000 secMaster Down interval is 3.003 secFastEthernet0/0 - Group 2State is BackupVirtual IP address is 10.0.0.254Virtual MAC address is 0000.5e00.0102Advertisement interval is 1.000 secPreemption ena
8、bledPriority is 100Master Router is 10.0.0.254, priority is 255Master Advertisement interval is 1.000 secMaster Down interval is 3.609 sec (expires in 2.789 sec)在路由器 R2 上：InterfaceGrp Pri Time Own Pre State Master addrGroup addrFa0/01150 3414Y Backup 10.0.0.25310.0.0.253Fa0/02255 3003Y Y Master 10.0.0.25410.0.0.254R2#show vrrp all省略实验做完了，当然，大家也可以通过关闭接口等方法来验证VRRP是否有效果