只改了 local ip remote ip dns 和 chap-secrets 其他默认 开了ip forwarding 但是连接是提示错误619 日志显示 Oct 10 23:33:02 s2 pppd[12619]: pppd 2.4.5 started by root, uid 0 Oct 10 23:33:02 s2 pppd[12619]: Using interface ppp0 Oct 10 23:33:02 s2 pppd[12619]: Connect: ppp0 <--> /dev/pts/1 Oct 10 23:33:02 s2 pptpd[12618]: GRE: read(fd=7,buffer=7f259ee45400,len=8260) from network failed: status = -1 error = Protocol not available Oct 10 23:33:02 s2 pptpd[12618]: CTRL: GRE read or PTY write failed (gre,pty)=(7,6) Oct 10 23:33:02 s2 pptpd[12618]: CTRL: Reaping child PPP[12619] Oct 10 23:33:02 s2 pppd[12619]: Hangup (SIGHUP) Oct 10 23:33:02 s2 pppd[12619]: Modem hangup Oct 10 23:33:02 s2 pppd[12619]: Connection terminated. Oct 10 23:33:02 s2 pppd[12619]: Exit.