Why can not using my server for public webrtc-streamer

[thanhtungtvg95]

Hi, I am facing an issue. I am using webrtc-streamer on my server (has turn server), it work with local network but it is not with other network. [ { "candidate" : "candidate:1505818807 1 udp 2122260223 <myPrivateIp> 51100 typ host generation 0 ufrag cdDK network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" }, { "candidate" : "candidate:2193873142 1 udp 1686052607 <myPublicIp> 51100 typ srflx raddr <myPrivateIp> rport 51100 generation 0 ufrag cdDK network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" } ] But when i deploy it to Google cloud or Amazon cloud, it work perfect. [ { "candidate" : "candidate:1005718130 1 udp 2122260223 <privateIpGCP> 60419 typ host generation 0 ufrag OuET network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" }, { "candidate" : "candidate:2199625048 1 udp 1686052607 <publicIpGCP> 60419 typ srflx raddr <privateIpGCP> rport 60419 generation 0 ufrag OuET network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" }, { "candidate" : "candidate:3458223196 1 udp 41885695 <privateIpGCP> 49580 typ relay raddr <publicIpGCP> rport 60419 generation 0 ufrag OuET network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" }, { "candidate" : "candidate:3310935782 1 tcp 1518280447 <privateIpGCP> 50013 typ host tcptype passive generation 0 ufrag OuET network-id 1 network-cost 50", "sdpMLineIndex" : 0, "sdpMid" : "0" } ]

I dont know the reason for this different. Please help me.

[thanhtungtvg95]

After some hours research about webrtc, to resolve my problem, i did some thing:

1. Open range port 49152-65535 with UDP for my server (min and max port can change if you want)
2. Run webrtc-streamer using param -R 49152-65535
3. Use trick with file webrtcstreamer.js: Replace

   WebRtcStreamer.prototype.onReceiveCandidate = function(dataJson) {
   console.log("candidate: " + JSON.stringify(dataJson));
   if (dataJson) {
       for (var i=0; i<dataJson.length; i++) {
           var candidate = new RTCIceCandidate(dataJson[i]);
           console.log("Adding ICE candidate :" + JSON.stringify(candidate) );
           this.pc.addIceCandidate(candidate).then( () =>      { console.log ("addIceCandidate OK"); }
               , (error) => { console.log ("addIceCandidate error:" + JSON.stringify(error)); } );
       }
       this.pc.addIceCandidate();
   }
   }

   with

   WebRtcStreamer.prototype.onReceiveCandidate = function (dataJson) {
   console.log("candidate: " + JSON.stringify(dataJson));
   if (dataJson) {
     for (let i = 0; i < dataJson.length; i++) {
       // trick to using public ip
       const tmp = {
         ...dataJson[i],
         candidate: dataJson[i].candidate.replace("<myPrivateIp>", "<myPublicIp>"),
       };
       const candidate = new RTCIceCandidate(tmp);
       console.log("Adding ICE candidate :" + JSON.stringify(candidate) );
       this.pc.addIceCandidate(candidate).then(
         () => {
           console.log ("addIceCandidate OK");
         },
         (error) => {
           console.log ("addIceCandidate error:" + JSON.stringify(error));
         }
       );
     }
     this.pc.addIceCandidate();
   }
   };

Both using turn server and not using turn server, it work all

[yeafel666]

After some hours research about webrtc, to resolve my problem, i did some thing:

1. Open range port 49152-65535 with UDP for my server (min and max port can change if you want)
2. Run webrtc-streamer using param -R 49152-65535
3. Use trick with file webrtcstreamer.js: Replace WebRtcStreamer.prototype.onReceiveCandidate = function(dataJson) { console.log("candidate: " + JSON.stringify(dataJson)); if (dataJson) { for (var i=0; i<dataJson.length; i++) { var candidate = new RTCIceCandidate(dataJson[i]); console.log("Adding ICE candidate :" + JSON.stringify(candidate) ); this.pc.addIceCandidate(candidate).then( () => { console.log ("addIceCandidate OK"); } , (error) => { console.log ("addIceCandidate error:" + JSON.stringify(error)); } ); } this.pc.addIceCandidate(); } } with WebRtcStreamer.prototype.onReceiveCandidate = function (dataJson) { console.log("candidate: " + JSON.stringify(dataJson)); if (dataJson) { for (let i = 0; i < dataJson.length; i++) { // trick to using public ip const tmp = { ...dataJson[i], candidate: dataJson[i].candidate.replace("<myPrivateIp>", "<myPublicIp>"), }; const candidate = new RTCIceCandidate(tmp); console.log("Adding ICE candidate :" + JSON.stringify(candidate) ); this.pc.addIceCandidate(candidate).then( () => { console.log ("addIceCandidate OK"); }, (error) => { console.log ("addIceCandidate error:" + JSON.stringify(error)); } ); } this.pc.addIceCandidate(); } };

Both using turn server and not using turn server, it work all

Great, your answer is effective and has truly helped me! thanks, bro . god bless you !

[mpromonet]

Hi,

This is a strange approach to patch ice candidate. I guess ice candidate are not correctly discovered, or the turn server is not configured correctly, or the turn is not correctly used.

Best Regards, Michel.