Something like a Telestar Digibit should do what you're after. It's a Sat>IP box that takes dvb-s and dvb-s2 transponders and pushes the transport streams over IP. From memory it's UDP.
They take a bit of configuring, and there are some alternative firmware variants out there too that add more functionality.
I used one of these briefly a few years back and can't remember all the details I'm afraid.