RE: [pptp-devel] Segmentation Fault - PPTP Client

[Nagendra K. <Nag...@mp...>]

-----Original Message-----
From: Paul Howarth [mailto:pa...@ci...]=20
Sent: Tuesday, May 23, 2006 8:50 PM
To: Nagendra KV
Cc: ppt...@li...
Subject: RE: [pptp-devel] Segmentation Fault - PPTP Client


>You probably need to follow the diagnosis procedure described here:
>http://pptpclient.sourceforge.net/howto-diagnosis.phtml#connect_refused

Here are the outputs.

(1) ping pptpserver  --> Cannot do as ICMP is blocked on firewall.

(2) traceroute pptpserver  --> Cannot do as ICMP is blocked on firewall.

(3) telnet pptpserver 1723  --> I can telnet to the port 1723 so the
previous 2 points definitely works

(4) Check GRE Works.

tcpdump log ...... (a.b.c.d --> Client IP & e.f.g.h --> Windows VPN
Server)

13:02:18.084317 IP a.b.c.d.32783 > e.f.g.h.1723: S
3882988980:3882988980(0) win 5840 <mss 1460,sackOK,timestamp 3798090
0,nop,wscale 2>
13:02:18.084974 IP e.f.g.h.1723 > a.b.c.d.32783: R 0:0(0) ack 3882988981
win 5840 <mss 1460,sackOK,timestamp 3798090 0,nop,wscale 2>
13:02:29.216369 IP a.b.c.d.32784 > e.f.g.h.1723: S
3896589431:3896589431(0) win 5840 <mss 1460,sackOK,timestamp 3809224
0,nop,wscale 2>
13:02:29.217241 IP e.f.g.h.1723 > a.b.c.d.32784: R 0:0(0) ack 3896589432
win 5840 <mss 1460,sackOK,timestamp 3809224 0,nop,wscale 2>

(5) Check MPPE Support
	 modprobe ppp-compress-18  returns no error.

(6) strings `which pppd`|grep -i mppe|wc --lines  returns 46 lines.

But still I am getting this error.

Using interface ppp0pptpconfig: monitoring interface ppp0

Connect: ppp0 <--> /dev/pts/2
anon warn[open_inetsock:pptp_callmgr.c:326]: connect: Connection refused
anon fatal[callmgr_main:pptp_callmgr.c:124]: Could not open control
connection to e.f.g.h
anon fatal[open_callmgr:pptp.c:439]: Call manager exited with error 256
Modem hangup
Connection terminated.
pptpconfig: pppd process terminated by signal 16 (failed)
pptpconfig: SIGUSR1

TIA
Nags