Multiple Concurrent Outgoing PPTP Connections

[canadianis]

Just looking to implement Zentyl as a gateway in our environment, I need to know if we have 4 people in the office can they all connect to an outside pptp VPN all at the same time through zentyl?

I can't seem to find anything in the forums or docs.

[robb]

Should Zentyal set up the PPTP tunnel or the client pc?

[canadianis]

The client would be initiating the VPN connection, I did do some testing on that and it will not allow multiple concurrent conections.

[iepaul]

Is this a linux problem or a pptp problem?  A lot of firewalls appear to have this issue.  Is there any way around it?

[xvendrell]

We have the same problem.
Without zentyal, we can conect 3 users with microsoft pptp client to outside PPTP server. But with zentyal, only one user can be conected.

We need help!!!

Thanks

[jsalamero]

Try to load the pptp netfilter helper:

sudo modprobe nf_nat_pptp

Regards,

[rubic]

This is well-known GRE-NAT-Traversal problem. If you'll follow the jsalamero's advice, plese keep us informed about the results/

[leros]

sudo modprobe nf_nat_pptp

I have the same problem with pptp.
This solve the problem?