[Serdev] two session on rtpproxy with video?

Adrian Georgescu ag at ag-projects.com
Mon Jan 19 18:53:04 UTC 2004


You did explain wel.l. The second m= line for video is not yet handled. 
  See previous email on the list.

I plan to add this functionality but I first want to check with the 
other developers about this. Stay tuned.



On 19 Jan 2004, at 19:26, Rodrigo Frez wrote:

> if video are present and we want to pass through the rtpproxy, this 
> means
> that we have two open sessions?. If so, maybe the sdp flag inserted 
> when
> executing force_rtp_proxy, does not let the video pass through the 
> proxy.
> I use ethereal to see what happen to video packets and sip related 
> messages,
> and yes, the sdp headers are changed, and the IP is rewrited, but when 
> the
> udp packets of video begin to come from a client, ethereal show me a 
> destination
> unreacheable message, due to the port on the server...
>
> So:
>
>     Client->NAT->SER&RTPPROXY
>                            *
>
> the video packets in (*) have by destiny somo port on the server that 
> is
> not ready to listen, and I think is to due that the rtpproxy is not 
> listening,
> because never open a session to handle the video...
>
> PS: I hope I explaine it well...
>
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