status of PPTP Masquerade + PPTP Server on Gateway?

["R. Benjamin Shapiro" <bshapiro@getdown.org>]

Hi Netfilterers,

I have spent considerable time today trying to get PPTP Masquerade 
working on a firewall that also happens to be the PPTP server people use 
to connect to our network. Our setup is such that we often have a few 
people inside the firewall connecting out and several connecting in. I 
applied the pptp-masq patch from the patch-o-matic to my 2.4.22 (+ mppe 
for pptpd) kernel. I see to either be able to have people come in 
reliably or people go out reliably, but people cannot connect in if the 
gre and pptp masq modules are loaded. I have the local_nat option turned 
on in the kernel.

Am I doing something wrong or is this setup still not available?

Thanks very much,
Ben