As this software communicates with customized (expensive) cameras via UDP, I noted a strange bug in the Wine debug channel "winsock": the software was sending UDP packets to IP _254_.255.255.255 (note the first octet). After some experimentation, I noticed that while Windows just sends this as a broadcast packet, Linux rejects this address, because the corresponding RFC states that the network 240.0.0.0/4 is reserved and should not be used.
You can use a iptables rule to do the same thing. Right?
Uh.. I'm not sure about that. 254.* is reserved in the appropriate RFC and the kernel seems to reject it already in the send() call.. But I'd like to be proven wrong :-)
Florian