Hi, I red the RFC 4961 Symetric RTP, i set the flags of rtp_offer "a", and then i stop receiving packets to the udp port i use to send RTP, but the audio is not being sent to the port that i set on the SDP message. Do i have to run rtpproxy with any special parameter to support asymmetric rtp?
2012/11/14 Ignacio Gonzalez <[email protected]> > I found where the other port is taken from. I use Java, JMF to create the > RTP part of the UA, I create two RTPManagers, one to send and one to > receive, and I use two different ports, one is for sending and one for > receiving, and rtpproxy send me packets to the sending port, I don't know > if i have to use only one RTPManager to send and receive rtppackets using > the port I send in the SDP message. This has been always a doubt for me. > > > m=audio 11670 RTP/AVP 0 > a=rtpmap:0 PCMU/8000 > a=sendrecv > > this SDP message is the one i send in the INVITE > > so i listen to RTP packets in the 11760 udp port > > and create a "rtp sender" using another random port chosen by JMF, this > random port is where packets are sent from rtpproxy. > > Thanks for your help. > > > > 2012/11/14 Ignacio Gonzalez <[email protected]> > >> Here is my complete scenario: >> >> OPENSIPS is in a private network inside of a virtual machine >> 192.168.1.220 and is using port 5062 on udp and tcp >> RTPProxy is in a private network inside of the same virtual machine >> 192.168.1220 and this is the command line I'm using to run rtpproxy: >> >> ./rtpproxy -l 192.168.1.220 -s udp:192.168.1.220:12400 -n tcp: >> 192.168.1.220:12333 -u user -m 35000 -M 35200 >> >> The host machine is 192.168.1.200 >> >> My router create the binding rules for public_ip:35000 -> >> 192.168.1.220:35000 to public_ip:35200 -> 192.168.1.220:35200 >> >> I'm making a call between to UAs outside of the LAN 192.168.1.0, both >> clients are outside of the LAN. >> >> >> I tried to set the flags "i" and "e" but still not working, I also tried >> setting the autobridged parameter for the rtpproxy module. >> >> Thanks for helping. >> >> P.D. I want to see the debug of rtpproxy but I don't know how to do that, >> can any one help me with this? >> >> >> >> >> >> >> >> >> 2012/11/14 Răzvan Crainea <[email protected]> >> >>> Hi, Ignacio! >>> >>> So you are trying to use RTPProxy in bridge mode (between a private and >>> a public network). This means that for INVITE you should have a public IP, >>> and for 200OK a private IP (or the other way around, depending on your >>> scenario). You have three possible solutions to achieve this: >>> >>> 1. For INVITE, call rtpproxy_offer("flags", "PUBLIC_IP") and for 200OK, >>> rtpproxy_answer("flags", "PRIVATE_IP") (or reverse the IPs in case of a >>> different scenario). I am not sure this works, as RTPProxy will have no >>> idea about where exactly is your UAC/UAS - therefore it might use wrong >>> sockets to send data (for example, it might use a PRIVATE_IP socket to send >>> RTP to a public ip). >>> 2. Enable the autobridge mode, by setting the 'rtpproxy_autobrige' >>> parameter [1]. I've never used this, so I can't confirm whether it works >>> properly or not. >>> 3. Call the rtpproxy_offer/answer functions with the 'E' or 'I' >>> flags[2]. This is the most reliable method I've used I can confirm it works. >>> >>> [1] http://www.opensips.org/html/docs/modules/1.8.x/rtpproxy#id250154 >>> [2] http://www.opensips.org/html/docs/modules/1.8.x/rtpproxy#id292744 >>> >>> Regards, >>> >>> Razvan Crainea >>> OpenSIPS Core Developerhttp://www.opensips-solutions.com >>> >>> On 11/14/2012 05:14 PM, Ignacio Gonzalez wrote: >>> >>> 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 <[email protected]> >>> >>>> 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 <[email protected]> >>>> >>>>> 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 <[email protected]> >>>>> >>>>>> I use the same port but tcp because in the post the answer is that. I >>>>>> Attach the debug file >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 2012/11/12 spady <[email protected]> >>>>>> >>>>>>> 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 >>>>>>> [email protected] >>>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>>>>>> >>>>>> >>>>>> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Users mailing >>>> [email protected]http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>>> >>>> >>>> >>>> _______________________________________________ >>>> Users mailing list >>>> [email protected] >>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>>> >>>> >>> >>> >>> _______________________________________________ >>> Users mailing >>> [email protected]http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>> >>> >>> >>> _______________________________________________ >>> Users mailing list >>> [email protected] >>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >>> >>> >> >
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