没有到主机的路由这种问题很常见，多数是由机器的防火墙没有关闭。

Ubuntu

  • 查看防火墙状态
ufw status
  • 关闭防火墙
ufw disable

centos6

  • 查看防火墙状态
service iptables status
  • 关闭防火墙
chkconfig iptables off

centos7

  • 查看防火墙状态
firewall-cmd --state
  • 临时关闭防火墙
systemctl stop firewalld.service
  • 永久关闭防火墙
systemctl disable firewalld

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