On Sunday 18 January 2004 11:00 pm, Carl Farrington wrote:
> Does anybody know if there is a workaround for this problem? As soon as
> I insmod ip_nat_pptp , poptop cannot accept any incoming pptp
> connections.
Why do you want to use both of these on the same box?
ip_nat_pptp is only needed for PPTP connections being routed *through* the
machine.
poptop is only needed for PPTP connections terminating *on* the machine.
I can quite easily imagine that these two functions would not work together,
because of the unhelpful way in which PPTP embeds IP addresses inside the
protocol. If you load ip_nat_pptp then the packets are going to get mangled
(correctly for routing, but not for terminating here), and if you don't load
it then you can't route across a NATted connection (but you can run PPTP on
the box itself).
Seems to me like you need to choose whether you're routing or terminating the
PPTP connections, and use the correct solution for whichever it is.
Antony.
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