Hi alsersawy,
thanks for the datas so I see login is not needed so far but thanks.

Ok I have test it but the channel used no token.I have also test some other channels but they are all working.So I think the problem could be the stream itself & rtmpdump.If you run the stream then you can also see how the played seconds in CMD window do jumping strange.Maybe this stream is not constant enough so that rtmpdump get any trouble to handle it (buffer issue etc).
So what you could do is to add a buffer value.So with this the stream runs but also it stops for some seconds before it plays again but the stream get not closed with this option.
see....stream still running below..but stream is not liquid to watch in player what makes not much sense of course to watch it on that way.
Code:
RTMPDump v2.4
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
KSV patched + Denobis patched
WARNING: You haven't specified an output file (-o filename), using stdout
Connecting ...
INFO: Connected...
Starting Live Stream
INFO: Metadata:
INFO: duration 0.00
INFO: width 768.00
INFO: height 432.00
INFO: videodatarate 0.00
INFO: framerate 1000.00
INFO: videocodecid 7.00
INFO: audiodatarate 0.00
INFO: audiosamplerate 22050.00
INFO: audiosamplesize 16.00
INFO: stereo FALSE
INFO: audiocodecid 2.00
INFO: encoder Lavf54.3.100
INFO: filesize 0.00
8684.418 kB / 2231.41 sec
Also for swf link I found this in memory...
Code:
http://www.teledunet.com/mobile//player.swf?id0=209349833192&channel=saudisport/[[DYNAMIC]]/1
greetz