PPTP will not send UDP, use something like git:
http://www.morpheussoftware.net/git/

Supposedly it can also be done with OpenVPN, but I have no idea how.

-----Original Message-----
From: Michael Dale [mailto:mdale at dalegroup dot net] 
Sent: Friday, October 28, 2005 5:59 PM
To: m0n0wall at lists dot m0n0 dot ch
Subject: Starcraft over PPTP VPN

Morning List,

I've got a m0n0wall box (1.2b10) with a PPTP VPN setup. The firewall  
is set to pass all VPN traffic to anywhere.

I am trying to setup a Starcraft lan game via the VPN.

To my knowledge starcraft uses udp to talk to other computers on the  
lan.

The users can connect to the VPN and ping each other but are unable  
to see the starcraft game. It looks like the UDP traffic isn't being  
passed.

Does anyone have any ideas?

Thanks,
Michael.