i think chap got confused because he was passing
rtmfp link (rtmfp://85.17.30.74) to rtmpdump and was able to download it. but when you pass
rtmfp as protocol it actually uses
rtmp to download the stream but the particular server (rtmfp://81.95.11.23) in this case is blocking all other protocols except rtmfp. so we are unable to use rtmpdump with this server.
Code:
http://stream-recorder.com/forum/showpost.php?p=28865&postcount=13