GLBP

interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
 glbp 1 ip 192.168.0.243                       ----(1)和HSRP类似，创建GLBP组，虚拟网关的IP为：192.168.0.243
 glbp 1 priority 120                           ----(2)配置优先级，优先级搞的路由器成为AVG，默认为100
 glbp 1 preempt                                ----(3)配置AVG抢占，否则即使优先级越高，也不会成为AVG
 glbp 1 authentication md5 key-string cisco    ----(4)配置认证，防止非法设备接入

show glbp                                      ----查看glbp信息21:42 2008-6-30