centospptp客户端连接vpn

端口是正常的，那边的vpn也是能正常访问的，不过那边的是ssl vpn不知道会不会有什么影响。

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Oct 20 16:55:43 AY140226144732220a87Z pppd[20156]: pppd 2.4.5 started by root, uid 0
Oct 20 16:55:43 AY140226144732220a87Z pppd[20156]: Using interface ppp0
Oct 20 16:55:43 AY140226144732220a87Z pppd[20156]: Connect: ppp0 <--> /dev/pts/5
Oct 20 16:55:43 AY140226144732220a87Z pptp[20157]: anon log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Oct 20 16:56:14 AY140226144732220a87Z pppd[20156]: LCP: timeout sending Config-Requests
Oct 20 16:56:14 AY140226144732220a87Z pppd[20156]: Connection terminated.
Oct 20 16:56:14 AY140226144732220a87Z pppd[20156]: Modem hangup
Oct 20 16:56:19 AY140226144732220a87Z pppd[20156]: Exit.
Oct 20 16:56:46 AY140226144732220a87Z pptp[20162]: anon warn[open_inetsock:pptp_callmgr.c:329]: connect: Connection timed out
Oct 20 16:56:46 AY140226144732220a87Z pptp[20162]: anon fatal[callmgr_main:pptp_callmgr.c:127]: Could not open control connection to 221.230.54.113

您好
根据您的报错信息
connect: Connection timed outanon fatal[callmgr_main:pptp_callmgr.c:127]: Could not open controlconnection to 221.230.54.113
无法连接到您的PPTP服务器。
检查您的PPTP服务器端口是否开启正常？
您的PPTP服务是否启动正常

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请您知悉

楼主您好，

这里有一个例子，是在centos下作为pptp客户端连接远程服务器的： http://websistent.com/how-to-configure-a-linux-pptp-vpn-client/

您可以试试喔。