Hi Daniel,

I have tested using "rtpproxy_manage("", public IP), but in this case, it 
replaces all the c= lines with this public IP, included c=lines in media 
descriptions and then, the rtp traffic is not routing to the right IP in MCU.

Have I to set up any value/param….to route rtp traffic through rtpproxy in sip 
server and then it will dispatch RTP packets to MCU?

Thanks.

Br,
Marina

From: Daniel-Constantin Mierla <mico...@gmail.com<mailto:mico...@gmail.com>>
Reply-To: "mico...@gmail.com<mailto:mico...@gmail.com>" 
<mico...@gmail.com<mailto:mico...@gmail.com>>
Date: lunes 8 de octubre de 2012 16:04
To: "SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users 
Mailing List" 
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Cc: Vicente Hernando 
<vherna...@systemonenoc.com<mailto:vherna...@systemonenoc.com>>, Marina Serrano 
Montes <mari...@tid.es<mailto:mari...@tid.es>>
Subject: Re: [SR-Users] how to use fix_nated_sdp("2") with multiple media types

Hello,

I understood that Marina is looking for the option of being able to use 
different IP addresses for updating various c= lines in SDP.

fix_nated_sdp(...) can work only with one IP address given as second parameter 
(or taken for source address of the packet).

Perhaps fix_nated_sdp(...) can be easily extended to support a list of ip 
addresses in the second parameter. For now the solution is to use rtpproxy to 
rewrite all the IP addresses in c= lines with the IP address of the rtpproxy. 
RTPProxy will then dispatch RTP to the right IP address assigned for each media 
stream.

Regarding the patch sent by Vicente, I just replied on sr-dev mailing list.

Cheers,
Daniel

On 10/8/12 3:25 PM, Vicente Hernando wrote:
Hello Marina,

there is a bug in sdp parser about c IPs which are not correctly reset for non 
existent c values in streams.

I have still not uploaded it to master branch, sorry.

May be it is related to your issue, in this link you have the attached patch.

http://lists.sip-router.org/pipermail/sr-dev/2012-September/016440.html


Kind regards,
Vicente.

On 10/08/2012 01:18 PM, MARINA SERRANO MONTES wrote:
Hi,

I have a doubt about how to use "fix_nated_sdp("2")" function when we have an 
scenario with multiple media types (audio and video) and the param "c" in sdp 
for each media type has a different IP.
We are using a SCOPIA 400 MCU to multi-party in a call, and it will set up 
different IP to send RTP depend on media type.

I have tested this function, but it rewrites always all the "c" parameter with 
the same value.

Is there any option to use the function or to rewrite "c" value for each media 
type independently?

Many thanks.

Br,
Marina

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--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - 
http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - 
http://asipto.com/u/katu

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