Current configuration : 965 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! boot-start-marker boot-end-marker ! ! memory-size iomem 5 no aaa new-model ip subnet-zero ! ip cef ! no ftp-server write-enable !          interface Serial0/0

ip address 200.0.2.2 255.255.255.0 serial restart-delay 0 ! interface Serial0/1

ip address 200.0.1.2 255.255.255.0 serial restart-delay 0 ! interface Serial0/2 no ip address shutdown serial restart-delay 0 ! interface Serial0/3 no ip address shutdown serial restart-delay 0 ! interface FastEthernet1/0

ip address 200.0.0.254 255.255.255.0 duplex auto speed auto ! router rip

version 2

network 200.0.0.0

network 200.0.1.0

network 200.0.2.0

no auto-summary ! ip http server ip classless ! control-plane ! line con 0 transport preferred all transport output all line aux 0 transport preferred all transport output all line vty 0 4 ! end       验证一下： 在R1上运行 show glbp brief:   在R2上运行 show glbp brief:   在R1上运行 show glbp f0/0: R1#sh glbp f0/0 FastEthernet0/0 - Group 1

  State is Standby

    4 state changes, last state change 00:18:12    Virtual IP address is 10.0.0.200   Hello time 3 sec, hold time 10 sec     Next hello sent in 2.636 secs   Redirect time 600 sec, forwarder time-out 14400 sec   Preemption enabled, min delay 0 sec    Active is 10.0.0.254, priority 100 (expires in 7.760 sec)    Standby is local

   Priority 100 (default)

  Weighting 100 (default 100), thresholds: lower 1, upper 100   Load balancing: round-robin   Group members:     cc00.04e0.0000 (10.0.0.253) local     cc00.0654.0000 (10.0.0.254)   There are 2 forwarders (1 active)    Forwarder 1

    State is Active       3 state changes, last state change 00:17:56      MAC address is 0007.b400.0101 (default)

    Owner ID is cc00.04e0.0000     Preemption enabled, min delay 30 sec      Active is local, weighting 100    Forwarder 2

    State is Listen

     MAC address is 0007.b400.0102 (learnt)

    Owner ID is cc00.0654.0000     Time to live: 14397.148 sec (maximum 14400 sec)     Preemption enabled, min delay 30 sec      Active is 10.0.0.254 (primary), weighting 100 (expires in 7.144 sec) 在R2上运行 show glbp f0/0： R2#sh glbp f0/0 FastEthernet0/0 - Group 1

  State is Active

    2 state changes, last state change 00:19:32    Virtual IP address is 10.0.0.200

  Hello time 3 sec, hold time 10 sec     Next hello sent in 1.144 secs   Redirect time 600 sec, forwarder time-out 14400 sec   Preemption enabled, min delay 0 sec    Active is local

   Standby is 10.0.0.253, priority 100 (expires in 7.148 sec)    Priority 100 (default)   Weighting 100 (default 100), thresholds: lower 1, upper 100   Load balancing: round-robin   Group members:     cc00.04e0.0000 (10.0.0.253)     cc00.0654.0000 (10.0.0.254) local   There are 2 forwarders (1 active)    Forwarder 1

    State is Listen

      2 state changes, last state change 00:18:43      MAC address is 0007.b400.0101 (learnt )     Owner ID is cc00.04e0.0000     Redirection enabled, 597.136 sec remaining (maximum 600 sec)     Time to live: 14399.688 sec (maximum 14400 sec)     Preemption enabled, min delay 30 sec      Active is 10.0.0.253 (primary), weighting 100 (expires in 9.684 sec)     Arp replies sent: 2    Forwarder 2

    State is Active

      1 state change, last state change 00:21:55      MAC address is 0007.b400.0102 (default)     Owner ID is cc00.0654.0000     Redirection enabled     Preemption enabled, min delay 30 sec      Active is local, weighting 100     Arp replies sent: 1 在主机PC1上Ping远端服务器Server，然后使用ARP -A来查看网关MAC地址。截图如下：   在主机PC2上Ping远端服务器Server,然后使用arp -a来查看网关MAC地址。截图如下：  

        通过ARP -A大家看到了，网关的MAC地址通过轮循的方式响应ARP请求的。

        实验就做到这里吧，有问题大家多交流。

        大伙玩的开心！