keepalived的vrrp多播报文被禁，导致VIP同时位于多个机器上

keepalived的vrrp多播报文被禁，导致VIP同时位于多个机器上

查看man keepalived.conf，VRRP instances中给出了单播的设置方法，添加unicast_peer即可：

VRRP instance(s)
describes the movable IP for each instance of a group in vrrp_sync_group.  
Here are described two IPs (on inside_network and on outside_network), 
on machine "my_hostname", which belong to the
       group VG_1 and which will transition together on any state change.

        #You will need to write another block for outside_network.
        vrrp_instance inside_network {
           ...
           unicast_peer {
             <IPADDR>
             ...
           }

[root@ostack01 ~]# cat /etc/keepalived/keepalived.conf
global_defs {
   router_id 10.95.149.165      # Router id
}
vrrp_instance COL_1 {
    state BACKUP
    nopreempt             
    interface br0
    virtual_router_id 50        
    priority 100
    advert_int 1                
    authentication {
      auth_type PASS
      auth_pass qiyeanquan
    }
    unicast_peer {
        10.95.149.165
        10.95.149.166
    }
    virtual_ipaddress {
      10.95.149.168             
    }
}