supercaster

README

supercaster

Transfer UDP multicast packets to gRPC stream and vice-versa.

Public cloud providers (such as AWS or Google Cloud Platform) do not support multicast routing. So, if an application A on a VM 1 sends UDP multicast packets, another application B running on VM 2 will not be able to receive them.

A solution may be Weave Net, but it is not available for Windows.

So, the solution is to use supercaster on both VMs:

• launch supercaster on VM 1 in mode multicast-to-gRPC, in order to forward received UDP multicast packets to a gRPC stream,
• launch supercaster on VM 2 in mode gRPC-to-multicast, in order to forward received gRPC messages to UDP multicast destination.

Application A on VM1 ->multicast-> supercaster on VM1 ->grpc-> supercaster on VM2 ->multicast-> application B on VM2