[pptp-server] PPTPD & GRE problems?!

[Eirik Robertstad]

I just can't seam to get this working.... can anyone out there help me 
out with this please? Here is what I'm getting in my log file:

pptpd[25025]: MGR: Launching /sbin/pptpctrl to handle client
pptpd[2310]: MGR: Reaped child 25025
modprobe: modprobe: Can't locate module tty-ldisc-3
pptpd[25025]: CTRL: local address = 192.168.0.234
pptpd[25025]: CTRL: remote address = 192.168.1.234
pptpd[25025]: CTRL: Client 172.18.0.253 control connection started
pptpd[25025]: CTRL: Received PPTP Control Message (type: 1)
pptpd[25025]: CTRL: Made a START CTRL CONN RPLY packet
pptpd[25025]: CTRL: I wrote 156 bytes to the client.
pptpd[25025]: CTRL: Sent packet to client
pptpd[25025]: CTRL: Received PPTP Control Message (type: 7)
pptpd[25025]: CTRL: Set parameters to 0 maxbps, 16 window size
pptpd[25025]: CTRL: Made a OUT CALL RPLY packet
pptpd[25025]: CTRL: Starting call (launching pppd, opening GRE)
pptpd[25025]: CTRL: pty_fd = 4
pptpd[25025]: CTRL: tty_fd = 5
pptpd[25026]: CTRL (PPPD Launcher): Connection speed = 115200
pptpd[25026]: CTRL (PPPD Launcher): local address = 192.168.0.234
pptpd[25026]: CTRL (PPPD Launcher): remote address = 192.168.1.234
pptpd[25025]: CTRL: I wrote 32 bytes to the client.
pptpd[25025]: CTRL: Sent packet to client
pptpd[25025]: GRE: read(fd=4,buffer=809c180,len=8196) from PTY failed: 
status = -1 error = Input/output error
pptpd[25025]: CTRL: PTY read or GRE write failed (pty,gre)=(4,5)
pptpd[25025]: CTRL: Client 172.18.0.253 control connection finished
pptpd[25025]: CTRL: Exiting now