#创建虚VIP
ifconfig eth1:1 192.168.202.200 broadcast 192.168.202.255 netmask 255.255.255.0 up
ip addr add 192.168.202.200/32 dev eth1
#关闭虚VIP
ifconfig eth1:1 192.168.202.200 broadcast 192.168.202.255 netmask 255.255.255.0 down
ip addr del 192.168.202.200/32 dev eth1
详细信息请参考：https://blog.csdn.net/chengxuyuanyonghu/article/details/83539966