Missing feature or bug? - NetGroup video does not go through firewalls/NATs

Question

I am developing an application based on NetGroup Video. I observed following
- Without any NAT/firewall - "NetGroup.post" and audio/video DOES work
- One client inside NAT/firewall - "NetGroup.post" works, video and audio DOES NOT work
- After manually punching holes in NAT/firewall (outside of application), both audio and video started working. As soon as hole was closed, both audio/video stopped again.
It seems like NetGroup P2P connections do not do NAT/firewall hole punching. Can somebody from adobe confirm this to be true (or not true). If true, is it a known issue, will it be fixed soon? If not, I may have to implement a hole punching algorithem in my application.
Any information / help is appreciated.

Answer 1

Hi Michael, thanks for quick reply. My reply as below:
1. Yes the text chat works over NetGroup while video does not work (Video is connected through a different NetGroup)
2. results of cc.rtmfp.net as follows:
Event: NetConnection.ConnectivityCheck.Results info:
receiveDifferentAddressDifferentPortAllowed: false
code: NetConnection.ConnectivityCheck.Results
publicAddressIsLocal: false
level: status
description: Connectivity Check Results
sendAfterIntroductionAllowed: true
sendAfterIntroductionPreservesSourceAddress: true
receiveSameAddressSamePortAllowed: true
sendAfterIntroductionPreservesSourcePort: true
localAddresses: 10.0.0.2:52964,[2001:0:4137:9e76:28c8:22e8:8302:dec1]:52965
publicPortMatchesLocalPort: true
receiveSameAddressDifferentPortAllowed: false
publicAddress: 124.253.33.62:52964
3. My code to send video is as follows:
var id:String = "user1";
// code to send video
var groupSpec:GroupSpecifier = new GroupSpecifier(id);
groupSpec.ipMulticastMemberUpdatesEnabled = true;
groupSpec.multicastEnabled = true;
groupSpec.postingEnabled = true;
groupSpec.objectReplicationEnabled = true;
groupSpec.routingEnabled = true;
groupSpec.serverChannelEnabled = true;
outgoingStream = new NetStream(netConnection, sendVideoNetGroupSpec.groupspecWithAuthorizations());
var mic:Microphone = Microphone.getMicrophone();
mic.gain = 100;
outgoingStream.attachAudio(mic);
var camera:Camera = Camera.getCamera();
camera.setMode(320, 240, 15);
outgoingStream.attachCamera(camera);
outgoingStream.publish(id);
break;
4. Code to receive video on the other end is as follows:
var groupSpec:GroupSpecifier = new GroupSpecifier(id);
groupSpec.ipMulticastMemberUpdatesEnabled = true;
groupSpec.multicastEnabled = true;
groupSpec.postingEnabled = true;
groupSpec.objectReplicationEnabled = true;
groupSpec.routingEnabled = true;
groupSpec.serverChannelEnabled = true;
var incomingStream:NetStream = new NetStream(netConnection, chatTopicNeighbourList[i].videoNetGroupSpec.groupspecWithAuthorizations());
incomingStream.receiveVideo(true);
incomingStream.receiveAudio(true);
var st:SoundTransform = new SoundTransform(1);
incomingStream.soundTransform = st;
var remoteVideo:Video = new Video();
remoteVideo.width = 120;
remoteVideo.height = 68;
remoteVideo.attachNetStream(incomingStream);
videoDisplay.addChild(remoteVideo);
incomingStream as NetStream.play(id);