[pptp-server] gre protocol not available - help!

R. de Vroede r.devroede at linvision.com
Thu Apr 4 04:47:29 CST 2002


this is indeed somewhat of a firewall problem. It has something to do
with entries in /proc/net/ip_conntrack. Haven't gotten to the bottom of
it, but when you get it, there is allready some GRE connection (or
history thereof) from the client or to the server. Wait until the entry
is gone (5 to 10 mins I think), then you can make a new connection.

Regards,
Richard de Vroede

On Thu, 2002-04-04 at 00:28, truin at enterprise.truin.com wrote:
> IS your test computer behind a NAT'd firewall?  I have the GRE Protocol 
> Not Available error when my Win client is on a private IP being NAT'd 
> behind a linux firewall.  Perhaps your situation is similar?
> 
> -=Jason=-
> 
> 
> On Wed, 3 Apr 2002, [Windows-1252] Örjan Johansson wrote:
> 
> > I just looked through my .config file, and it says CONFIG_NET_IPGRE=y so
> > the line in modules.conf is as vain as I suspected right? The utterly
> > confusing thing is that once or twice I've got it working, without doing
> > anything...... So why is the protocol not available 9 times out of ten?
> > Any ideas at all?
> >  
> > Cheers,
> > Örjan
> > 
-- 
Richard de Vroede
(r.devroede at linvision.com)
------------------------------------------------
Linvision BV         Provides Linux Solutions
Elektronicaweg 16D
2628 XG Delft
T: +31157502310      info at linvision.com
F: +31157502319      http://devel.linvision.com
------------------------------------------------




More information about the pptp-server mailing list