Probleem met PPTP (VPN)

[Guru Evi]

Ik probeer een VPN verbinding te maken naar mij thuis. Deze configuratie zit achter een router, deze is wel ingesteld voor VPN (PPTP) verbindingen door te laten naar mijn server.

Ik probeer een PPTP verbinding op te bouwen met Poptop en een Windows client. De PPP en kernel (2.6) is gepatched maar ik krijg het volgende in mijn logs:

code:

Jun  8 11:05:16 powerserver pptpd[18047]: MGR: Manager process started
Jun  8 11:05:16 powerserver pptpd[18047]: MGR: Maximum of 32 connections available
Jun  8 11:05:31 powerserver pptpd[18048]: MGR: Launching /usr/sbin/pptpctrl to handle client
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: local address = 10.0.0.1
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: remote address = 10.0.0.33
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: pppd options file = /etc/ppp/options.pptpd
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Client 212.123.1.32 control connection started
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Received PPTP Control Message (type: 1)
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Made a START CTRL CONN RPLY packet
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: I wrote 156 bytes to the client.
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Sent packet to client
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Received PPTP Control Message (type: 7)
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Set parameters to 100000000 maxbps, 64 window size
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Made a OUT CALL RPLY packet
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Starting call (launching pppd, opening GRE)
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: pty_fd = 6
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: tty_fd = 7
Jun  8 11:05:31 powerserver pptpd[18049]: CTRL (PPPD Launcher): program binary = /usr/sbin/pppd
Jun  8 11:05:31 powerserver pptpd[18049]: CTRL (PPPD Launcher): local address = 10.0.0.1
Jun  8 11:05:31 powerserver pptpd[18049]: CTRL (PPPD Launcher): remote address = 10.0.0.33
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: I wrote 32 bytes to the client.
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Sent packet to client
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Received PPTP Control Message (type: 15)
Jun  8 11:05:31 powerserver pptpd[18048]: CTRL: Got a SET LINK INFO packet with standard ACCMs
Jun  8 11:05:31 powerserver pppd[18049]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Jun  8 11:05:31 powerserver pppd[18049]: pptpd-logwtmp: $Version$
Jun  8 11:05:31 powerserver pppd[18049]: pppd 2.4.3 started by root, uid 0
Jun  8 11:05:31 powerserver pppd[18049]: using channel 1
Jun  8 11:05:31 powerserver pppd[18049]: Using interface ppp0
Jun  8 11:05:31 powerserver pppd[18049]: Connect: ppp0 <--> /dev/pts/4
Jun  8 11:05:31 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:31 powerserver pptpd[18048]: GRE: Bad checksum from pppd.
Jun  8 11:05:35 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:38 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:41 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:44 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:47 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:50 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:53 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:56 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:05:59 powerserver pppd[18049]: sent [LCP ConfReq id=0x1 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0x9c9cf27e> <pcomp> <accomp>]
Jun  8 11:06:02 powerserver pppd[18049]: LCP: timeout sending Config-Requests
Jun  8 11:06:02 powerserver pppd[18049]: Connection terminated.
Jun  8 11:06:02 powerserver pppd[18049]: using channel 2
Jun  8 11:06:02 powerserver pppd[18049]: Using interface ppp0
Jun  8 11:06:02 powerserver pppd[18049]: Connect: ppp0 <--> /dev/pts/4
Jun  8 11:06:02 powerserver pppd[18049]: sent [LCP ConfReq id=0x2 <mru 1492> <asyncmap 0x0> <auth chap MD5> <magic 0xc8ce8fce> <pcomp> <accomp>]
Jun  8 11:06:02 powerserver pppd[18049]: sent [LCP TermReq id=0x3]
Jun  8 11:06:02 powerserver pppd[18049]: tcflush failed: Bad file descriptor
Jun  8 11:06:02 powerserver pppd[18049]: tcsetattr: Invalid argument (line 1027)
Jun  8 11:06:02 powerserver pppd[18049]: Exit.
Jun  8 11:06:02 powerserver pptpd[18048]: GRE: read(fd=6,buffer=506740,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Jun  8 11:06:02 powerserver pptpd[18048]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Jun  8 11:06:02 powerserver pptpd[18048]: CTRL: Reaping child PPP[18049]
Jun  8 11:06:02 powerserver pptpd[18048]: CTRL: Client 212.123.1.32 control connection finished
Jun  8 11:06:02 powerserver pptpd[18048]: CTRL: Exiting now
Jun  8 11:06:02 powerserver pptpd[18047]: MGR: Reaped child 18048

Aan de andere kant krijg ik error 619. Iemand al voorgehad? De verbinding verbreekt bij deze melding:

code:

Jun  8 11:06:02 powerserver pppd[18049]: LCP: timeout sending Config-Requests
Jun  8 11:06:02 powerserver pppd[18049]: Connection terminated.

en dus denk ik dat de rest niet van belang is (nu toch).