PPP PPTPD 不能连接

Question

有喜欢搞微胖妞的大侠没, 帮忙看看

Aug 29 17:23:02 iZu19usll9bZ pptpd[1447]: MGR: connections limit (100) reached, extra IP addresses ignored
Aug 29 17:23:02 iZu19usll9bZ pptpd[1448]: MGR: Manager process started
Aug 29 17:23:02 iZu19usll9bZ pptpd[1448]: MGR: Maximum of 100 connections available
Aug 29 17:23:04 iZu19usll9bZ pptpd[1450]: CTRL: Client 123.125.**.175 control connection started
Aug 29 17:23:04 iZu19usll9bZ pptpd[1450]: CTRL: Starting call (launching pppd, opening GRE)
Aug 29 17:23:04 iZu19usll9bZ pppd[1451]: Plugin /usr/lib64/pptpd/pptpd-logwtmp.so loaded.
Aug 29 17:23:04 iZu19usll9bZ pppd[1451]: pppd 2.4.5 started by root, uid 0
Aug 29 17:23:04 iZu19usll9bZ pppd[1451]: Using interface ppp0
Aug 29 17:23:04 iZu19usll9bZ pppd[1451]: Connect: ppp0 <--> /dev/pts/1
Aug 29 17:23:34 iZu19usll9bZ pppd[1451]: LCP: timeout sending Config-Requests
Aug 29 17:23:34 iZu19usll9bZ pppd[1451]: Connection terminated.
Aug 29 17:23:34 iZu19usll9bZ pppd[1451]: Modem hangup
Aug 29 17:23:34 iZu19usll9bZ pppd[1451]: Exit.
Aug 29 17:23:34 iZu19usll9bZ pptpd[1450]: GRE: read(fd=6,buffer=6124a0,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Aug 29 17:23:34 iZu19usll9bZ pptpd[1450]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Aug 29 17:23:34 iZu19usll9bZ pptpd[1450]: CTRL: Client 123.125.**.175 control connection finished

Answer 1

LCP: timeout sending Config-Requests
这个应该 iptables 给挡了

iptables -A INUPUT -p gre -j ACCEPT
iptables -A OUTPUT -p gre -j ACCEPT