[ale] pppt linux server & win2k client, peer not responding

hne at hopnet.net hne at hopnet.net
Sun Sep 28 14:20:05 EDT 2003


Hi all,

  I'm hoping to find someone who's done this one before.  A win2k client
VPN to a Linuxboxen.
  I have my mom's win2k/SP2 box, behind a SpeedStream 2406 DSL router on
Optilink fibre in Dalton, suffering with a non-routable IP address.
  The SpeedStream router has ports 47(GRE), 500(IPSEC), and 5800(VNC)
open.  Possible Important note here: this router is NAT'd, AND the
connection to the net is also NAT'd by Optilink.  So....
  Win2K<-->SpeedStream(NAT)<-->Optilink's.NAT<-->Internet

  I have my Linux server, running SuSE 8.1 and pptp 1.1.2, also behind a
SpeedStream 2406 DSL router on HinoCATV cable in Tokyo NAT'd to a
routeable IP (and even a DNS entry).
  Ports 47(GRE) and 1723(PPTP) are open on the Tokyo side router and piped
to the Linux server.
  LinuxBoxen<-->SpeedStream(NAT)<-->Internet

After sorting out the chap-secrets, I get a connect, but eventual failure,
with the winbloze error:

Error 721: Remote PPP peer is not responding

This seems happen at a long pause just after this entry from pptpd on the
Linuxboxen:
CTRL: Got a SET LINK INFO packet with standard ACCMs

  Any pointers would be appreciated.

--
Lost in Tokyo, and can't VPN home...
  Keith


Here is the whole log of the conversation from the pptpd perspective. Sep
29 02:38:48 hades pptpd[16627]: MGR: Launching /usr/sbin/pptpctrl to
handle client
Sep 29 02:38:48 hades pptpd[16627]: CTRL: local address = 192.168.101.73
Sep 29 02:38:48 hades pptpd[16627]: CTRL: remote address = 192.168.102.73
Sep 29 02:38:48 hades pptpd[16627]: CTRL: pppd speed = 115200
Sep 29 02:38:48 hades pptpd[16627]: CTRL: pppd options file =
/etc/ppp/options.pptpd
Sep 29 02:38:48 hades pptpd[16627]: CTRL: Client 66.110.216.2 control
connection started
Sep 29 02:38:48 hades pptpd[16627]: CTRL: Received PPTP Control Message
(type: 1)
Sep 29 02:38:48 hades pptpd[16627]: CTRL: Made a START CTRL CONN RPLY
packet Sep 29 02:38:48 hades pptpd[16627]: CTRL: I wrote 156 bytes to the
client. Sep 29 02:38:48 hades pptpd[16627]: CTRL: Sent packet to client
Sep 29 02:38:49 hades pptpd[16627]: CTRL: Received PPTP Control Message
(type: 7)
Sep 29 02:38:49 hades pptpd[16627]: CTRL: 0 min_bps, 1525 max_bps, 32
window size
Sep 29 02:38:49 hades pptpd[16627]: CTRL: Made a OUT CALL RPLY packet Sep
29 02:38:49 hades pptpd[16627]: CTRL: Starting call (launching pppd,
opening GRE)
Sep 29 02:38:49 hades pptpd[16627]: CTRL: pty_fd = 5
Sep 29 02:38:49 hades pptpd[16627]: CTRL: tty_fd = 6
Sep 29 02:38:49 hades pptpd[16628]: CTRL (PPPD Launcher): Connection speed
= 115200
Sep 29 02:38:49 hades pptpd[16628]: CTRL (PPPD Launcher): local address =
192.168.101.73
Sep 29 02:38:49 hades pptpd[16628]: CTRL (PPPD Launcher): remote address =
192.168.102.73
Sep 29 02:38:49 hades pppd[16628]: pppd 2.4.1 started by root, uid 0 Sep
29 02:38:49 hades pptpd[16627]: CTRL: I wrote 32 bytes to the client. Sep
29 02:38:49 hades pptpd[16627]: CTRL: Sent packet to client
Sep 29 02:38:49 hades pppd[16628]: Using interface ppp0
Sep 29 02:38:49 hades pppd[16628]: Connect: ppp0 <--> /dev/pts/8
Sep 29 02:38:49 hades pptpd[16627]: CTRL: Received PPTP Control Message
(type: 15)
Sep 29 02:38:49 hades pptpd[16627]: CTRL: Got a SET LINK INFO packet with
standard ACCMs
Sep 29 02:39:26 hades pptpd[16627]: CTRL: Received PPTP Control Message
(type: 12)
Sep 29 02:39:26 hades pptpd[16627]: CTRL: Made a CALL DISCONNECT RPLY
packet Sep 29 02:39:26 hades pptpd[16627]: CTRL: Received CALL CLR request
(closing call)
Sep 29 02:39:26 hades pptpd[16627]: CTRL: I wrote 148 bytes to the client.
Sep 29 02:39:26 hades pptpd[16627]: CTRL: Sent packet to client
Sep 29 02:39:26 hades pppd[16628]: Modem hangup
Sep 29 02:39:26 hades pppd[16628]: Connection terminated.
Sep 29 02:39:26 hades pppd[16628]: Exit.
Sep 29 02:39:26 hades pptpd[16627]: GRE: read error: Bad file descriptor
Sep 29 02:39:26 hades pptpd[16627]: CTRL: PTY read or GRE write failed
(pty,gre)=(-1,-1)
Sep 29 02:39:26 hades pptpd[16627]: CTRL: Client 66.110.216.2 control
connection finished
Sep 29 02:39:26 hades pptpd[16627]: CTRL: Exiting now
Sep 29 02:39:26 hades pptpd[16265]: MGR: Reaped child 16627




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