Wireshark mailing list archives
Re: Debugging intermittent audio dropout with RTP over OpenVPN
From: Andrew Martin <amartin () xes-inc com>
Date: Thu, 10 Sep 2015 15:01:05 -0500 (CDT)
----- Original Message -----
From: "Jeroen Eeuwes" <jeroeneeuwes () gmail com> To: "Community support list for Wireshark" <wireshark-users () wireshark org>, "Andrew Martin" <amartin () xes-inc com> Sent: Thursday, September 10, 2015 1:39:53 PM Subject: Re: [Wireshark-users] Debugging intermittent audio dropout with RTP over OpenVPN Hi Andrew,however calls involving the phones connecting over the Internet intermittently experience audio quality problems (e.g. calls will drop audio for 15 seconds or audio will be very garbled when someone talks).I have the same problem. I have a hunch the audio problems are caused by renegotiating the keys for the VPN by the phone. But I have not yet spent much time studying it.
Hi Jeroen, Are you also using Yealink phones? Do you have a copy of the OpenVPN client config for your phones? I posted mine here, but the Yealink support people say that the settings are correct and should work without problems: http://forum.yealink.com/forum/showthread.php?tid=5860 I took a closer look at it and I do see the following messages in the OpenVPN server log whenever someone reports a "bad" call: http://pastebin.com/62gnvjdh A description of this can be found here: https://openvpn.net/archive/openvpn-users/2007-07/msg00104.html Is this what you meant by the key renegotiation disrupts the calls? If so, it seems the solution might be to set "reneg-sec 86400" (only renegotiate once per day) in both the client and server configs? Thanks, Andrew ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject=unsubscribe
Current thread:
- Debugging intermittent audio dropout with RTP over OpenVPN Andrew Martin (Sep 10)
- Re: Debugging intermittent audio dropout with RTP over OpenVPN Jeroen Eeuwes (Sep 10)
- Re: Debugging intermittent audio dropout with RTP over OpenVPN Andrew Martin (Sep 10)
- Re: Debugging intermittent audio dropout with RTP over OpenVPN Jeroen Eeuwes (Sep 10)
- Re: Debugging intermittent audio dropout with RTP over OpenVPN Andrew Martin (Sep 10)
- Re: Debugging intermittent audio dropout with RTP over OpenVPN Jeroen Eeuwes (Sep 10)