[pptp-server] Client's can't connect?

[HiJinX]

Hi - I have pptpd running on a 192.168.1.11 address behind a router with
tcp 1723 traffic being forwarded to it.
I've tried opening port 47 but connections still cannot be made -

Here's part of the syslog -

Jun  1 20:09:40 ras pptpd[302]: MGR: Launching /usr/local/sbin/pptpctrl
to handle client
Jun  1 20:09:40 ras pptpd[302]: CTRL: local address = 192.168.1.50
Jun  1 20:09:40 ras pptpd[302]: CTRL: remote address = 192.168.1.100
Jun  1 20:09:40 ras pptpd[302]: CTRL: pppd speed = 115200
Jun  1 20:09:40 ras pptpd[302]: CTRL: Client 203.63.239.17 control
connection started
Jun  1 20:09:40 ras pptpd[302]: CTRL: Received PPTP Control Message
(type: 1)
Jun  1 20:09:40 ras pptpd[302]: CTRL: Made a START CTRL CONN RPLY packet

Jun  1 20:09:40 ras pptpd[302]: CTRL: I wrote 156 bytes to the client.
Jun  1 20:09:40 ras pptpd[302]: CTRL: Sent packet to client
Jun  1 20:09:40 ras pptpd[302]: CTRL: Received PPTP Control Message
(type: 7)
Jun  1 20:09:40 ras pptpd[302]: CTRL: Set parameters to 1525 maxbps, 64
window size
Jun  1 20:09:40 ras pptpd[302]: CTRL: Made a OUT CALL RPLY packet
Jun  1 20:09:40 ras pptpd[302]: CTRL: Starting call (launching pppd,
opening GRE)
Jun  1 20:09:40 ras pptpd[302]: CTRL: pty_fd = 4
Jun  1 20:09:40 ras pptpd[302]: CTRL: tty_fd = 5
Jun  1 20:09:40 ras pptpd[303]: CTRL (PPPD Launcher): Connection speed =
115200
Jun  1 20:09:40 ras pptpd[303]: CTRL (PPPD Launcher): local address =
192.168.1.50
Jun  1 20:09:40 ras pptpd[303]: CTRL (PPPD Launcher): remote address =
192.168.1.100
Jun  1 20:09:40 ras pptpd[302]: CTRL: I wrote 32 bytes to the client.
Jun  1 20:09:40 ras pptpd[302]: CTRL: Sent packet to client
Jun  1 20:09:40 ras pppd[303]: pppd 2.3.5 started by root, uid 0
Jun  1 20:09:40 ras pppd[303]: Using interface ppp0
Jun  1 20:09:41 ras pppd[303]: Connect: ppp0 <--> /dev/ttyp0
Jun  1 20:09:41 ras pppd[303]: sent [LCP ConfReq id=0x1 <auth chap 05>
<magic 0x5b0c41de> <pcomp> <accomp>]
Jun  1 20:09:41 ras pptpd[302]: CTRL: Received PPTP Control Message
(type: 15)
Jun  1 20:09:41 ras pptpd[302]: CTRL: Got a SET LINK INFO packet with
standard ACCMs
Jun  1 20:09:44 ras pppd[303]: sent [LCP ConfReq id=0x1 <auth chap 05>
<magic 0x5b0c41de> <pcomp> <accomp>]
Jun  1 20:10:08 ras last message repeated 8 times
Jun  1 20:10:11 ras pppd[303]: LCP: timeout sending Config-Requests
Jun  1 20:10:11 ras pppd[303]: Connection terminated.
Jun  1 20:10:11 ras pppd[303]: Exit.
Jun  1 20:10:11 ras pptpd[302]: GRE: read(fd=4,buffer=804d7ec,len=8196)
from PTY failed: status = -1 error = Input/output error
Jun  1 20:10:11 ras pptpd[277]: MGR: Reaped child 302
Jun  1 20:10:11 ras pptpd[302]: CTRL: PTY read or GRE write failed
(pty,gre)=(4,5)
Jun  1 20:10:11 ras pptpd[302]: CTRL: Client 203.63.239.17 control
connection finished
Jun  1 20:10:11 ras pptpd[302]: CTRL: Exiting now
Jun  1 20:35:06 ras squid[207]: NETDB state saved; 0 entries, 10 msec

Is there anyway around this - or will I have to give the pptpd box a
live IP address?

Thanks for any help,
Michael