Re: pptp

[Jason Opperisano <opie@xxxxxxxxxxx>]

On Fri, Oct 15, 2004 at 01:39:14AM -0500, K. Shantanu  wrote:
> Hi,
> I have just installed Mandrake Linux 10.0 (Official). Kernel Used is  2.6.3-7mdksmp.
> I want to connect to my client's PPTP server from a windows based pptp client.
> Are there any gotchas for the same? Or do I just need to open port 47 and 1723, 
> protocol tcp for it?

yes--if your are performing SNAT/MASQ for your entire internal network
on your gateway, it won't work.  there is a PPTP conntrack and nat module
in POM for this situation, but it will only compile against a 2.4 kernel.

one option would be to give the PPTP client a dedicated public IP and
perform a one-to-one SNAT/DNAT for that client and allow TCP 1723 and
IP protocol 47 outbound from that client and IP protocol 47 inbound to
that client from the PPTP server.

-j

-- 
Jason Opperisano <opie@xxxxxxxxxxx>