no route to host (docker 容器访问宿主机)

no route to host (docker 容器访问宿主机时出现,centos7)

问题排查:

# 以下命令, 防火墙是 not running 状态
firewall-cmd --state
# 以下命令 , iptables是 Active: active (exited) 
service iptables status
# 关闭 iptables 
service iptables stop

注意排查 iptables