I'm trying to record an incoming UDP stream (stream the sense that it's a stream of consecutive datagrams).
netcat but unfortunately multiple sources send data on the same port address and
nc doesn't let you specify the source or the target multicast address.
Then I tried
tcpdump -w - because tcpdump has rich filtering options, but it records the raw stream and I only need the actual data so I can process it like it were a stream. Unfortunately it records all the packet related info like source/destination or IP/UDP headers.
Is there a way to do this? I could write a small C program to do this but I prefer to use existing tools.