[pptp-server] PPTP not responding

[Shawn Hughes]

Here is my problem.  I can connect over the internal network to the PPTP server but I can not connect over the internet from a client to the PPTP server.  The information is passed to the PPTP server,  but I think the PPTP server is not passing anything back to the public address.  Here is my setup.

                                 Public IP    Private-IP
Client --> Internet --> ISDN --> PPTP----> Private Network
                                 Firewall     Server


I have attached the log file below.  Help if you can.




Nov 23 10:46:37 linux pptpd[1191]: MGR: Launching /usr/local/sbin/pptpctrl to handle client
Nov 23 10:46:37 linux pptpd[1191]: CTRL: local address = 192.168.4.10
Nov 23 10:46:37 linux pptpd[1191]: CTRL: remote address = 192.168.4.106
Nov 23 10:46:37 linux pptpd[1191]: CTRL: pppd options file = /etc/ppp/options
Nov 23 10:46:37 linux pptpd[1191]: CTRL: Client 206.103.114.212 control connection started
Nov 23 10:46:37 linux pptpd[1191]: CTRL: Received PPTP Control Message (type: 1)
Nov 23 10:46:37 linux pptpd[1191]: CTRL: Made a START CTRL CONN RPLY packet
Nov 23 10:46:37 linux pptpd[1191]: CTRL: I wrote 156 bytes to the client.
Nov 23 10:46:37 linux pptpd[1191]: CTRL: Sent packet to client
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Received PPTP Control Message (type: 7)
Nov 23 10:46:38 linux pptpd[1191]: CTRL: 0 min_bps, 1525 max_bps, 32 window size
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Made a OUT CALL RPLY packet
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Starting call (launching pppd, openingGRE)
Nov 23 10:46:38 linux pptpd[1191]: CTRL: pty_fd = 5
Nov 23 10:46:38 linux pptpd[1191]: CTRL: tty_fd = 6
Nov 23 10:46:38 linux pptpd[1192]: CTRL (PPPD Launcher): Connection speed = 115200
Nov 23 10:46:38 linux pptpd[1192]: CTRL (PPPD Launcher): local address = 192.168.4.10
Nov 23 10:46:38 linux pptpd[1192]: CTRL (PPPD Launcher): remote address = 192.168.4.106
Nov 23 10:46:38 linux pptpd[1191]: CTRL: I wrote 32 bytes to the client.
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Sent packet to client
Nov 23 10:46:38 linux pppd[1192]: pppd 2.4.0 started by root, uid 0
Nov 23 10:46:38 linux pppd[1192]: using channel 1
Nov 23 10:46:38 linux pppd[1192]: Using interface ppp0
Nov 23 10:46:38 linux pppd[1192]: Connect: ppp0 <--> /dev/pts/1
Nov 23 10:46:38 linux pppd[1192]: sent [LCP ConfReq id=0x1 <mru 1490> <asyncmap0x0> <auth chap 81> <magic 0x589d5158> <pcomp> <accomp>]
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Received PPTP Control Message (type: 15)
Nov 23 10:46:38 linux pptpd[1191]: CTRL: Got a SET LINK INFO packet with standard ACCMs
Nov 23 10:46:41 linux pppd[1192]: sent [LCP ConfReq id=0x1 <mru 1490> <asyncmap0x0> <auth chap 81> <magic 0x589d5158> <pcomp> <accomp>]
Nov 23 10:47:05 linux last message repeated 8 times
Nov 23 10:47:08 linux pppd[1192]: LCP: timeout sending Config-Requests
Nov 23 10:47:08 linux pppd[1192]: Connection terminated.
Nov 23 10:47:08 linux pppd[1192]: Exit.
Nov 23 10:47:08 linux pptpd[1191]: Error reading from pppd: Input/output error
Nov 23 10:47:08 linux pptpd[1191]: CTRL: GRE read or PTY write failed (gre,pty)=(6,5)
Nov 23 10:47:08 linux pptpd[1191]: CTRL: Client 206.101.114.12 control connection finished
Nov 23 10:47:08 linux pptpd[1191]: CTRL: Exiting now
Nov 23 10:47:08 linux pptpd[1138]: MGR: Reaped child 1191
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