> 1) The server could of course be made more robust by detecting the '$' char 
> and ignoring such requests.
> Would this work as a quick fix?

Perhaps.  But is this really a problem worth worrying about?  If this happens 
only occasionally (in extreme situations), and merely causes the server to send 
back a "method not allowed" RTSP response, then is this a major problem?  It 
seems to be merely an 'annoyance'.


> 2) The (more correct?) approach would be to only allow the client to send an 
> RR after it has received a PLAY response.

Maybe, but that would require a major change to the client code that might 
break other things - and wouldn't help with existing clients anyway.  So I'm 
not going to go down that route just to deal with a rare issue that - as noted 
above - appears to be just an annoyance.


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/

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