pptpd 问题,请高手们赐教

yinmoz

连接上之后,过了一会,就断开了,日志如下:

Nov 15 08:59:10 localhost pptpd[21439]: CTRL: Starting call (launching pppd, opening GRE)
Nov 15 08:59:10 localhost pppd[21440]: Plugin /usr/lib64/pptpd/pptpd-logwtmp.so loaded.
Nov 15 08:59:10 localhost pppd[21440]: pppd 2.4.4 started by root, uid 0
Nov 15 08:59:10 localhost pppd[21440]: Using interface ppp0
Nov 15 08:59:10 localhost pppd[21440]: Connect: ppp0 <--> /dev/pts/2
Nov 15 08:59:10 localhost pppd[21440]: MPPE 128-bit stateless compression enabled
Nov 15 08:59:10 localhost pptpd[21439]: CTRL: Ignored a SET LINK INFO packet with real ACCMs!
Nov 15 08:59:12 localhost pppd[21440]: found interface eth1 for proxy arp
Nov 15 08:59:12 localhost pppd[21440]: local  IP address 192.168.4.2
Nov 15 08:59:12 localhost pppd[21440]: remote IP address 192.168.5.5
Nov 15 08:59:15 localhost avahi-daemon[13145]: Invalid query packet.
Nov 15 08:59:55 localhost last message repeated 7 times
Nov 15 09:02:51 localhost pptpd[21439]: GRE: read(fd=7,buffer=6097c0,len=8260) from network failed: status = -1 error = Protocol not available
Nov 15 09:02:51 localhost pptpd[21439]: CTRL: GRE read or PTY write failed (gre,pty)=(7,6)
Nov 15 09:02:51 localhost pppd[21440]: Modem hangup
Nov 15 09:02:51 localhost pppd[21440]: Connect time 3.7 minutes.
Nov 15 09:02:51 localhost pppd[21440]: Sent 12960 bytes, received 33818 bytes.
Nov 15 09:02:51 localhost pppd[21440]: MPPE disabled
Nov 15 09:02:51 localhost pppd[21440]: Connection terminated.
Nov 15 09:02:51 localhost pppd[21440]: Exit.
Nov 15 09:02:51 localhost pptpd[21439]: CTRL: Client 192.168.4.3 control connection finished
Nov 15 09:02:52 localhost pptpd[21514]: CTRL: Client 192.168.4.3 control connection started
Nov 15 09:02:52 localhost pptpd[21514]: CTRL: Starting call (launching pppd, opening GRE)
Nov 15 09:02:52 localhost pppd[21515]: Plugin /usr/lib64/pptpd/pptpd-logwtmp.so loaded.
Nov 15 09:02:52 localhost pppd[21515]: pppd 2.4.4 started by root, uid 0
Nov 15 09:02:52 localhost pppd[21515]: Using interface ppp0
Nov 15 09:02:52 localhost pppd[21515]: Connect: ppp0 <--> /dev/pts/2
Nov 15 09:02:52 localhost pptpd[21514]: GRE: read(fd=7,buffer=6097c0,len=8260) from network failed: status = -1 error = Protocol not available
Nov 15 09:02:52 localhost pptpd[21514]: CTRL: GRE read or PTY write failed (gre,pty)=(7,6)
Nov 15 09:02:52 localhost pppd[21515]: Modem hangup
Nov 15 09:02:52 localhost pppd[21515]: Connection terminated.
Nov 15 09:02:52 localhost pppd[21515]: Exit.
Nov 15 09:02:52 localhost pptpd[21514]: CTRL: Client 192.168.4.3 control connection finished

不知是什么原因引起的? 请高手指教啊!