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
     priority
     advert_int
     authentication {
       auth_type PASS
       auth_pass qiyeanquan
     }
     unicast_peer {
         10.95.149.165
         10.95.149.166
     }
     virtual_ipaddress {
       10.95.149.168
     }
 }