[pptp-server] PPP dial outs to ISP fail

[Neale Banks]

On Mon, 5 Jun 2000 graham at triad.net.au wrote:

> I have installed PoPToP onto a RedHat 6.1 system and got the VPN working
> fine across our ethernet LAN. I then tried dialling out on the same PC to an
> ISP and I got the result below.
> 
> I then wiped the Linux 6.1 and started from scratch, got the dialling to the
> ISP on ppp0 going first. All works well until I apply the pptp rpm
> (pptpd-1.0.0-1.i386.rpm). The same happens (ISP dial out on ppp0 fails).
> 
> I notice that the 4th line in messages says ppp ver 2.3.7, yet 2.3.10 is the
> version on my RH 6.1 install CD.
> 
> Any ideas??
> 
> 
> Jun  5 17:58:55 mail ifup-ppp: pppd started for ppp0 on /dev/modem at 115200
> Jun  5 17:58:56 mail modprobe: can't locate module char-major-108
> Jun  5 17:58:56 mail kernel: CSLIP: code copyright 1989 Regents of the
> University of California 
> Jun  5 17:58:56 mail kernel: PPP: version 2.3.7 (demand dialling) 
> Jun  5 17:58:56 mail kernel: PPP line discipline registered. 
> Jun  5 17:58:56 mail kernel: registered device ppp0 
> Jun  5 17:58:56 mail pppd[547]: The remote system (ppp0) is required to
> authenticate itself but I
> Jun  5 17:58:56 mail pppd[547]: couldn't find any suitable secret (password)
> for it to use to do so.
[snip]

Looks like you're demanding that your ISP authenticate themselves to you
(they probably won't do that ;-).

Check that the options you are passing to pppd for calling your ISP 
includes "noauth".

Perhaps somebody else can suggest why installation of pptpd should provoke
this behaviour (one could speculate that it's changing the default ppp
options from noauth to auth).

HTH,
Neale.