删除br0

ifdown br0
brctl  delbr  br0
rm ifcfg-br0
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.111
NETWORK=255.255.255.0
GATEWAY=192.168.0.254
systemctl restart network

 https://www.jianshu.com/p/f2724aec265a