[pptp-server] DTE problems with PoPToP ?

[tmk]

Check Netstat -a on your linux box when the connection is being attempted.
I'll wager your ISP blocks TCP protocol 47, so the GRE link never comes up

Same thing happened to me.. try a different ISP if you can.

Kevin
----- Original Message -----
From: Paulo Pinto <pspinto at srd.pt>
To: <pptp-server at lists.schulte.org>
Sent: Monday, July 19, 1999 10:11 AM
Subject: [pptp-server] DTE problems with PoPToP ?


> Hi there.
>
> I'm having some real *weird* problems with PoPToP.
> The setup is a Win95 machine with MSDun1.3 and a RedHat 6.0 Linux box (ppp
> 2.3.8, plain vannilla pptp.conf and /etc/ppp/options - i.e., like in the
> howto examples except for the IP's of course.)
> Using ethernet (100Mb) I am able to connect to the Linux box using PPTP.
> Disconnecting the Win95 machine from the ethernet and using a Internet
> connection, the PPTP seems to get stuck ... a sample from the log :
>
> Jul 19 18:38:29 mts01lin02 pptpd[5339]: CTRL: Client 195.22.18.131 control
> connection started
> Jul 19 18:38:30 mts01lin02 pptpd[5339]: CTRL: Starting call (launching
> pppd, opening GRE)
> Jul 19 18:38:30 mts01lin02 pppd[5340]: pppd 2.3.8 started by root, uid 0
> Jul 19 18:38:30 mts01lin02 pppd[5340]: Using interface ppp0
> Jul 19 18:38:30 mts01lin02 pppd[5340]: Connect: ppp0 <--> /dev/pts/4
> Jul 19 18:38:30 mts01lin02 pppd[5340]: sent [LCP ConfReq id=0x1 <asyncmap
> 0x0> <auth chap MD5> <magic 0xaf6e1e3c> <pcomp> <accomp>]
> Jul 19 18:38:36 mts01lin02 last message repeated 2 times
> Jul 19 18:38:39 mts01lin02 pptpd[5339]: CTRL: Error with select(),
quitting
> Jul 19 18:38:39 mts01lin02 pptpd[5339]: CTRL: Client 195.22.18.131 control
> connection finished
> Jul 19 18:38:39 mts01lin02 pppd[5340]: Modem hangup
> Jul 19 18:38:39 mts01lin02 pppd[5340]: Connection terminated.
> Jul 19 18:38:39 mts01lin02 pppd[5340]: Exit.
>
> Sometimes (this is the *funny* part), changing the DTE speed on the modem
> from, for example, 115200 to 57600 or to 19200 I am able to log in ... but
> only sometimes.
> I can't seem to find a pattern here... any clues ?
>
> BTW.. is the line 'CTRL: Error with select(), quitting' something of
> concern ? or is it just an effect of this error ?
>
> P.S. the boss mumbled something about 'the alternative is goin' to
> N(o)T(rust)' ... help PLEASE  ;)
>
> Paulo Pinto
> SRD - Sonae Redes de Dados
> pspinto at srd.pt
>
>
>
>
>
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