IP Tables - PPTP/GRE + NAT

Hi All,

I have iptables working with PPTP but with only one connection allowed
at once. After some research I found the reason for this, that is
iptables can only process 1 GRE connection thru NAT at any one time.
This seems odd since other nat enabled routers & windows don't have
the same issue.

My question is: Is there anyway around this? either by using IP tables
or a different method within Linux? If not does anyone know of any
future developments which will enable this?

Thanks,
Andy

(E-Mail Removed) (Andrew Townsend) wrote
news:(E-Mail Removed) om:
> My question is: Is there anyway around this? either by using IP tables
> or a different method within Linux? If not does anyone know of any
> future developments which will enable this?

Patch to allow multiple PPTP connexion :

http://www.impsec.org/linux/masquerade/ip_masq_vpn.html

or use a pptp proxy :

http://www.mgix.com/pptpproxy (not responding now ?)

Regards