922162 - unable to get Firefox browsers on separate networks to connect via WebRTC. Suspect ICE agent issues in FF.

Status: RESOLVED INCOMPLETE

(Core :: WebRTC: Networking, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Firefox/24.0 (Beta/Release)
Build ID: 20130910160258

Steps to reproduce:

I'm developing an application using WebRTC and Data channels. Unable to connect data channels in Firefox browsers across separate networks.  I'm parsing the ICE candidate information from the SDP's 'a=' record after issuing a peerConn.createOffer. I then send this ICE candidate data across the signaling channel. Upon receiving the ICE candidate information on the receiving end I perform peerConn.addIceCandidate(candidate). However, nothing I have tried for the past several days is allowing the two Firefox browsers to connect the datachannels via WebRTC. I am however able to make the same code work across two Firefox browsers if they are both on the same network. 


Actual results:

I always get iceConnectionState failed.


Expected results:

Data channel connection between two FF browsers across separate networks should have been established.

Comment 1

[Eric Rescorla (:ekr)]

Please provide logs from ICE/STUN/TURN as described here:

https://wiki.mozilla.org/Media/WebRTC/Logging

Also, please provide a wireshark trace and a copy of the SDP in each direction.

Comment 2

[[e-mail]]

Attachment: Wireshark capture file

Comment 3

[[e-mail]]

Attachment: Answerer_SDP Screenshot.PNG

Comment 4

[[e-mail]]

Attachment: Offerer_SDP Screenshot.PNG

Comment 5

[[e-mail]]

I followed the instructions at
https://wiki.mozilla.org/Media/WebRTC/Logging and set the environment variables but, unable to find the log files. Where are the log files stored?

Comment 6

[Randell Jesup [:jesup] (needinfo me)]

That depends on NSPR_LOG_FILE or R_LOG_DESTINATION

The most likely problem was you were running a non-debug build.  Debug versions of nightlies/etc can be downloaded from ftp.mozilla.org, or built locally.