一切似乎都运行良好，但我无法使用内置的 vpn 管理器连接到 Windows 上的 vpn。这是启动服务器后的系统日志：
Jul 26 20:22:37 localhost systemd[1]: Started PoPToP Point to Point Tunneling Se rver.
Jul 26 20:22:37 localhost pptpd[20357]: MGR: connections limit (100) reached, ex tra IP addresses ignored
Jul 26 20:22:37 localhost pptpd[20357]: MGR: Manager process started
Jul 26 20:22:37 localhost pptpd[20357]: MGR: Maximum of 100 connections availabl e
Jul 26 20:23:28 localhost dhclient[631]: XMT: Solicit on ens192, interval 118420 ms.
Jul 26 20:23:28 localhost dhclient[631]: RCV: Advertise message on ens192 from f e80::250:56ff:febe:6ebb.
Jul 26 20:23:28 localhost dhclient[631]: RCV: Advertise message on ens192 from f e80::250:56ff:fe95:48b5.
Jul 26 20:25:26 localhost dhclient[631]: XMT: Solicit on ens192, interval 128800 ms.
Jul 26 20:25:26 localhost dhclient[631]: RCV: Advertise message on ens192 from f e80::250:56ff:febe:6ebb.
Jul 26 20:25:26 localhost dhclient[631]: RCV: Advertise message on ens192 from f e80::250:56ff:fe95:48b5.