On Fri, 30 Sep 2005, Peter Bako wrote:
> I have a situation where I need to connect an OpenBSD box to a MS Windows
> PPTP server (yep, I know it is not secure, but in this case I have no choice
> in the matter).
>
> After looking around the net I found myself at
> http://pptpclient.sourceforge.net/. So I downloaded, complied and installed
> the program and tried to connect to my test box. (Also complied a custom
> kernel using the GENERIC files with only the pseudo-device GRE line
> commented out.) There aren't any OpenBSD specific instructions on the site,
> but reading the generic docs, as well as the docs for NetBSD, the PPTP man
> pages, etc. I think I have enough to get started. However when I try to
> connect up I get nothing but a list of errors (connection timed out, could
> not open connection, etc.) I know the path from my OpenBSD box to the test
> server is correct, because if I plug my Win2k laptop in it is able to
> successfully connect to the server.
>
> As far as I can tell the problem is a lack of MPPE support either in the
> Kernel or in PPP. However I cannot find any information on how to get this
> support onto an OpenBSD system.
>
> Has anyone gotten PPTP-client to work on an OpenBSD box and if yes, would
> you be kind enough to send me some steps or any other info on how you did
> it?
Check the pptp package. It's a port of pptpclient. There used to be a
FAQ entry about pptp, but it somehow was reduced to just mention pptp.
The most important thing is to put net.inet.gre.allow=1 into your
sysctl.conf. Or compile a kernel without gre(4), but why bother? It's
a bit strange the pptp man page still contains instructions to
recompile the kernel and does not mention the systcl. I'll prod the
maintainer.
-Otto
