[OpenSIPS-Users] RTPProxy Problem

[Ignacio Gonzalez]

Ok i will check the flags, I set the domain parameter of rtpproxy_offer to
PUBLIC_IP, i create the rules in my router to bind the ports 35000 to 35200
of the public_ip to the ports 35000 to 35200 in the PRIVATE_IP of rtpproxy
192.168.1.220, I'm not sure if this is correct.

If i don't put the domain parameter in the rtpproxy_offer the SDP message
contains the private ip of the RTPPROXY (192.168.1.220) and my clients are
outside this nat.

Thanks


2012/11/14 Răzvan Crainea <razvan at opensips.org>

>  Hi, Ignacio!
>
> The ports you have listed in the SDP snippet belong to a single rtp stream
> - Callee-RTPProxy-Caller. You should also check the ports in the 200OK.
> The "nortpproxy_str" parameter you are specifying is used by RTPProxy to
> determine if the SDP has to be changed, or somebody else already changed in
> the path.
> I noticed that you call rtpproxy_offer() function with two parameters:
> 1. "ro" - if the SDP has a private IP, you shouldn't use the "r" flag.
> This flag is used to specify that RTPProxy should accept packages only from
> that IP, whereas in your case he will receive the packets from a public IP.
> 2. "domain" - you shouldn't use this parameter unless you really know what
> you are doing. This overwrites the domain specified by RTPProxy, which is
> not always such a good idea.
>
> I hope these remarks will help you fix your problem.
>
> Regards,
>
> Razvan Crainea
> OpenSIPS Core Developerhttp://www.opensips-solutions.com
>
> On 11/14/2012 01:11 AM, Ignacio Gonzalez wrote:
>
> I change the attribute using adding this to the opensips configuration file
>
> modparam("rtpproxy", "nortpproxy_str", "a=sdpmangled:yes\r\n")
>
>
>
> a=nortpproxy:yes
>
>
> But there is no audio, i check the traffic using wireshark and i see that
> a lot of packets are sent to another port not the one that i send in the
> first message, example:
>
> First SDP
>
> v=0
> o=- 465641 0 IN IP4 10.168.123.201
> s=-
> c=IN IP4 10.168.123.201
> t=0 0
> m=audio 11670 RTP/AVP 0
> a=rtpmap:0 PCMU/8000
> a=sendrecv
>
>
>
> Changed by opensips and rtpproxy to look like
>
>
> v=0
> o=- 465641 0 IN IP4 IP_PUBLIC
> s=-
> c=IN IP4 IP_PUBLIC
> t=0 0
> m=audio 35000 RTP/AVP 0
> a=rtpmap:0 PCMU/8000
> a=sendrecv
>
>
> And packets are being recived on the udp:10.168.123.201:45708
>
>
> Thanks for your help
>
>
>
> 2012/11/13 Ignacio Gonzalez <mylaneza at gmail.com>
>
>> Hello, I change the command line to run rtpproxy and change my
>> configuration file:
>>
>> ./rtpproxy -l timewarnercable.dyndns.org -s udp:192.168.1.220:12333 -n
>> tcp:192.168.1.220:12333 -u syrium -m 35000 -M 35200
>>
>> rtpproxy_offer("ro" , "timewarnercable.dyndns.org");
>>
>> And now the SDP message looks like this:
>>
>> v=0
>> o=- 0 0 IN IP4 PUBLICIP
>> s=-
>> c=IN IP4 PUBLICIP
>> t=0 0
>> m=audio 35134 RTP/AVP 0
>> a=rtpmap:0 PCMU/8000
>> a=sendrecv
>> a=nortpproxy:yes
>>
>> But there is no audio, and I don't know what is the meaning of the
>> a=nortpproxy:yes
>>
>>
>> Thanks for your help.
>>
>>
>>
>>
>>
>> 2012/11/12 Ignacio Gonzalez <mylaneza at gmail.com>
>>
>>> I use the same port but tcp because in the post the answer is that. I
>>> Attach the debug file
>>>
>>>
>>>
>>>
>>>
>>> 2012/11/12 spady <spady77 at gmail.com>
>>>
>>>> Please, post entire opensips log ( set debug to 6 ).
>>>>
>>>> Why are you using same port for sock and notify_sock ??? Have you tried
>>>> with
>>>> different ports?
>>>>
>>>> Bye
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://opensips-open-sip-server.1449251.n2.nabble.com/RTPProxy-Problem-tp7582930p7582974.html
>>>>  Sent from the OpenSIPS - Users mailing list archive at Nabble.com.
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>
>>>
>>
>
>
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