VPN type protocal that will ALLOW broadcast traffi

[Morlan]

I managed to set up a VPN between two machines but the application we are using needs to do an initial broadcast on a certain port in order to make a connection. After the connection has been made, it sends unicast UDP.

VPN blocks all broadcast traffic so our application won't work. Is there an alternative? I'm using a Windows 2003 Server and the client is Win XP.

If there is no alternative would it be possible to intercept broadcast packets from the application before they reach the VPN tunnel and convert them to unicast packets directed to a specified IP?

Any help would be great. Thanks