[pptp-server] PPTP Connection freezes...

Philip Van Baren phil at vibrationresearch.com
Mon Oct 16 09:54:51 CDT 2000


My guess is that it is the compressed data bug in ppp_mppe.c - when the
connection drops a packet with encryption enabled, the link just stops
responding.

The "error with select()" is just a generic message that means the
connection was closed, and could happen even with a normal disconnect.  If
you add the "debug" option to your /etc/pptpd.conf and /etc/ppp/options.pptp
files you will get more information, and then should be able to see what
went wrong.

Phil

> -----Original Message-----
> From: pptp-server-admin at lists.schulte.org
> [mailto:pptp-server-admin at lists.schulte.org]On Behalf Of Christian
> Pedersen - Mailinglist
> Sent: Monday, October 16, 2000 4:43 AM
> To: pptp-server at lists.schulte.org
> Subject: [pptp-server] PPTP Connection freezes...
>
>
> Well i have installed a PPTP server on a RedHat 6.2, and use of pptpd v1.0
>
> I can connect to the server, but it only works for about 1-10
> minutes, then the
> connection is dropped..
>
> In windows it says nothing, the small diodes in my task bar just
> stops blinking.
> .
>
> Here is a session:
>
> Oct 16 09:32:51 mail pptpd[20502]: CTRL: Client XXX.XXX.XXX.XXX control
> connection started
> Oct 16 09:32:51 mail pptpd[20502]: CTRL: Starting call (launching
> pppd, opening
> GRE)
> Oct 16 09:32:51 mail pppd[20503]: pppd 2.3.11 started by root, uid 0
> Oct 16 09:32:51 mail pppd[20503]: Using interface ppp0
> Oct 16 09:32:51 mail pppd[20503]: Connect: ppp0 <--> /dev/pts/0
> Oct 16 09:32:51 mail pptpd[20502]: GRE: Discarding duplicate packet
> Oct 16 09:32:54 mail pppd[20503]: MSCHAP-v2 peer authentication
> succeeded for
> exiof
> Oct 16 09:32:54 mail pppd[20503]: found interface eth1 for proxy arp
> Oct 16 09:32:54 mail pppd[20503]: local  IP address XXX.XXX.XXX.XXX
> Oct 16 09:32:54 mail pppd[20503]: remote IP address 192.168.10.11
> Oct 16 09:32:54 mail pppd[20503]: MPPE 128 bit, stateless
> compression enabled
> Oct 16 09:32:55 mail sshd[20538]: log: Connection from
> 192.168.10.11 port 1140
> Oct 16 09:32:59 mail sshd[20538]: log: Password authentication for root
> accepted.
> Oct 16 09:32:59 mail sshd[20538]: log: ROOT LOGIN as 'root' from ip-11
> Oct 16 09:33:10 mail pppd[20503]: LCP terminated by peer
> Oct 16 09:33:10 mail pptpd[20502]: CTRL: Error with select(), quitting
> Oct 16 09:33:10 mail pptpd[20502]: CTRL: Client XXX.XXX.XXX.XXX control
> connection finished
> Oct 16 09:33:10 mail pppd[20503]: Modem hangup
> Oct 16 09:33:10 mail pppd[20503]: Connection terminated.
> Oct 16 09:33:10 mail pppd[20503]: Connect time 0.4 minutes.
> Oct 16 09:33:10 mail pppd[20503]: Sent 1905 bytes, received 2758 bytes.
> Oct 16 09:33:10 mail pppd[20503]: Exit.
>
> Well.. whats wrong.. guess that it's on the Error select() line..
>
>    Christian Pedersen / Wallin Computer
>     Ahlgade 3 \ 4300 Holbæk / 59441490
>   Direct  59451497 / christian at wallin.dk
>
>  LinuX / Teamware \ Networking / Firewalls
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