[pptp-server] Problems getting clients connected

[jim.sifferle at exgate.tek.com]

All,

I am having problems getting clients connected to my poptop server.  Each
time I try, I get authenticated, MPPE is enabled, then the connection is
dumped.  The test clients are on the same subnet as the server, so my
firewall is not an issue.  I am running Redhat 7.1, PPP v2.4.1 w/ openssl,
mschapv2, smbpasswd, and chapms-strip-domain patches, and PPTPD v1.1.2.  I
have attached my /etc/ppp/options file, /etc/pptpd.conf file, as well as
syslog output for Win2K and Win98SE connections.  Any help would be
appreciated.  Please respond to me directly as I'm not a member of the list.

/etc/pptp.conf

speed 115200
debug
localip 192.168.67.2
remoteip 192.168.67.31-35
listen 192.168.67.2

/etc/ppp/options

name *
lock
mtu 1490
mru 1490
proxyarp
auth
+chap
+chapms
+chapms-v2
chapms-strip-domain
ipcp-accept-local
ipcp-accept-remote
lcp-echo-failure 3
lcp-echo-interval 5
deflate 0
mppe-128
mppe-40
mppe-stateless
debug

syslog output:

Win 2K client

Jul 17 16:48:21 tangerine pptpd[14984]: CTRL: Client 192.168.67.20 control
connection started
Jul 17 16:48:23 tangerine pptpd[14984]: CTRL: Starting call (launching pppd,
opening GRE)
Jul 17 16:48:24 tangerine kernel: CSLIP: code copyright 1989 Regents of the
University of California
Jul 17 16:48:24 tangerine kernel: PPP generic driver version 2.4.1
Jul 17 16:48:24 tangerine pppd[14985]: pppd 2.4.1 started by root, uid 0
Jul 17 16:48:25 tangerine pppd[14985]: Using interface ppp0
Jul 17 16:48:25 tangerine pppd[14985]: Connect: ppp0 <--> /dev/pts/5
Jul 17 16:48:25 tangerine pptpd[14984]: CTRL: Ignored a SET LINK INFO packet
with real ACCMs!
Jul 17 16:48:26 tangerine kernel: PPP BSD Compression module registered
Jul 17 16:48:26 tangerine kernel: PPP MPPE compression module registered
Jul 17 16:48:26 tangerine pppd[14985]: MSCHAP-v2 peer authentication
succeeded for jimsiff
Jul 17 16:48:27 tangerine pppd[14985]: MPPE 128 bit, stateless compression
enabled
Jul 17 16:48:27 tangerine pptpd[14984]: CTRL: Ignored a SET LINK INFO packet
with real ACCMs!
Jul 17 16:48:28 tangerine pppd[14985]: Modem hangup
Jul 17 16:48:28 tangerine pppd[14985]: Connection terminated.
Jul 17 16:48:28 tangerine pptpd[14984]: GRE: read error: Bad file descriptor
Jul 17 16:48:28 tangerine pppd[14985]: Connect time 0.1 minutes.
Jul 17 16:48:28 tangerine pptpd[14984]: CTRL: PTY read or GRE write failed
(pty,gre)=(-1,-1)
Jul 17 16:48:28 tangerine pppd[14985]: Sent 127 bytes, received 127 bytes.
Jul 17 16:48:28 tangerine pptpd[14984]: CTRL: Client 192.168.67.20 control
connection finished
Jul 17 16:48:28 tangerine pppd[14985]: Exit.

Win '98 SE client

Jul 17 16:51:40 tangerine pptpd[14996]: CTRL: Client 192.168.67.15 control
connection started
Jul 17 16:51:40 tangerine pptpd[14996]: CTRL: Starting call (launching pppd,
opening GRE)
Jul 17 16:51:40 tangerine pppd[14997]: pppd 2.4.1 started by root, uid 0
Jul 17 16:51:40 tangerine pppd[14997]: Using interface ppp0
Jul 17 16:51:40 tangerine pppd[14997]: Connect: ppp0 <--> /dev/pts/5
Jul 17 16:51:40 tangerine pptpd[14996]: Buffering out-of-order packet; got 1
after 4294967295
Jul 17 16:51:43 tangerine pptpd[14996]: Packet reorder timeout waiting for 0
Jul 17 16:51:43 tangerine pptpd[14996]: Buffering out-of-order packet; got 2
after 0
Jul 17 16:51:43 tangerine pppd[14997]: MSCHAP-v2 peer authentication
succeeded for jimsiff
Jul 17 16:51:44 tangerine pppd[14997]: MPPE 40 bit, stateless compression
enabled
Jul 17 16:51:45 tangerine pppd[14997]: LCP terminated by peer
Jul 17 16:51:45 tangerine pppd[14997]: Modem hangup
Jul 17 16:51:45 tangerine pppd[14997]: Connection terminated.
Jul 17 16:51:45 tangerine pppd[14997]: Connect time 0.1 minutes.
Jul 17 16:51:45 tangerine pppd[14997]: Sent 130 bytes, received 142 bytes.
Jul 17 16:51:45 tangerine pppd[14997]: Exit.
Jul 17 16:51:50 tangerine pptpd[14996]: GRE: read error: Bad file descriptor
Jul 17 16:51:50 tangerine pptpd[14996]: CTRL: PTY read or GRE write failed
(pty,gre)=(-1,-1)
Jul 17 16:51:50 tangerine pptpd[14996]: CTRL: Client 192.168.67.15 control
connection finished

Thank you and best regards,

Jim Sifferle
Tektronix Network Services
503-627-5364
jim.sifferle at tek.com