[pptp-server] Help VPN !!

J.B. Lehucher lehucher at avancenet.com
Sun Jun 17 11:08:38 CDT 2001


Hi,

I'm running on debian 2.2.18 pre 21

I try to establish a PPTP VPN between a linux PoPToP server and a
Netopia R910 client

Both Internet links are DSL and work well

Daemon.log

Jun 17 16:18:28 equibox pptpd[26063]: MGR: Launching /usr/sbin/pptpctrl
to handle client
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: local address =
192.168.0.129
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: remote address =
192.168.0.132
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: pppd speed = 115200
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: pppd options file =
/etc/ppp/options.pptpd
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Client 193.251.57.183
control connection started
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Received PPTP Control
Message (type: 1)
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Made a START CTRL CONN RPLY
packet
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: I wrote 156 bytes to the
client.
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Sent packet to client
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Received PPTP Control
Message (type: 7)
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Set parameters to 152
maxbps, 16 window size
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Made a OUT CALL RPLY packet
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Starting call (launching
pppd, opening GRE)
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: pty_fd = 5
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: tty_fd = 6
Jun 17 16:18:28 equibox pptpd[26064]: CTRL (PPPD Launcher): Connection
speed = 115200
Jun 17 16:18:28 equibox pptpd[26064]: CTRL (PPPD Launcher): local
address = 192.168.0.129
Jun 17 16:18:28 equibox pptpd[26064]: CTRL (PPPD Launcher): remote
address = 192.168.0.132
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: I wrote 32 bytes to the
client.
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Sent packet to client
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Received PPTP Control
Message (type: 15)
Jun 17 16:18:28 equibox pptpd[26063]: CTRL: Got a SET LINK INFO packet
with standard ACCMs
Jun 17 16:18:28 equibox pptpd[26063]: GRE: Discarding duplicate packet
Jun 17 16:18:35 equibox pptpd[26063]: CTRL: Received PPTP Control
Message (type: 5)
Jun 17 16:18:35 equibox pptpd[26063]: CTRL: Made a ECHO RPLY packet
Jun 17 16:18:35 equibox pptpd[26063]: CTRL: I wrote 20 bytes to the
client.
Jun 17 16:18:35 equibox pptpd[26063]: CTRL: Sent packet to client
Jun 17 16:18:58 equibox pptpd[26042]: MGR: Reaped child 26063
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Received PPTP Control
Message (type: 12)
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Made a CALL DISCONNECT RPLY
packet
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Received CALL CLR request
(closing call)
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: I wrote 148 bytes to the
client.
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Sent packet to client
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Error with select(),
quitting
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Client 193.251.57.183
control connection finished
Jun 17 16:18:58 equibox pptpd[26063]: CTRL: Exiting now

Options.pptp

lock
debug
auth
+chap
proxyarp

And the log : Pptp.conf

speed 115200
option /etc/ppp/options.pptpd
debug
localip 192.168.0.128-130
remoteip 192.168.0.131-159


The connection starts well but finally stop from a client initiative
through a Type 12 request
I wonder if it could be due to the encryption mppe that should be
mandatory for the netopia R910 and which is not installed on PoPToP
server ?
None of  my tests with Windows 2000 client behind the Netopia router
where successfull.

I am not sure about these issues :

- remote and local addresses for client and serveur (including mask,
should the subnet between them be the same C class ?)
- pptpd options configuration

So, should I install the patches for a PPP encryption protocol ?

Thank in advance

jbl
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