Hi,
I finally resolved my issue, although without ever finding the cause. I am using bare-metal servers from Vultr and I was having the issue with the Debian 11 image that they provide when provisioning the server. An external consultant and myself invested several hours trying to find what could be causing this issue and we were unsuccessful. We tried everything (or so we thought), including sysctl and various network settings, to no avail. As a last resort, I then proceeded to wipe the server and reinstall Debian 11 using the standard Debian network installer in replacement of the image provided by Vultr. The problem magically went away after doing so but I would really like to know the cause.
Cheers,
Michel Pelletier
On Thu, Mar 2, 2023 at 9:45 PM Tim Bowyer timbo@timbo.au wrote:
Hi Everyone,
I’m having the same issue but believe it’s related to my network topology.
I have multiple carrier-facing NIC’s and an internal NIC on each media proxy.
Is this configuration supported?
I have the named ‘public / providerA / providerB’ rtpengine interfaces setup and working correctly – media flows as expected when running rtpengine *without* the kernel module.
When kernel module is in use I get a few seconds of 2-way audio initially before it drops out in one direction usually.
[root@per01-mtp01.dev.xyz blah]# cat /proc/rtpengine/0/list
local inet4 203.x.x.x:40000
stats: 350880 bytes, 2040packets, 0 errors
RTP payload type 0: 0bytes, 0 packets
RTP payload type 8: 350880 bytes,2040 packets
SSRC in: 65aa31af output #0 src inet4 10.y.y.y:40000 dst inet4 203.x.x.x:39302SSRC out:
I was also looking to find some config to make this working using firewalld rules, fishing through the Sipwise repos I stumbled across some firewalld rules as part of their automated builds but didn’t have any luck with them
If somebody had some rules I could try would be much appreciated!
Cheers,
Tim
*From:* sr-users sr-users-bounces@lists.kamailio.org *On Behalf Of *Michel Pelletier *Sent:* Tuesday, 13 December 2022 10:04 PM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Rtpengine: no audio after kernelization.
Hello,
Thank you for your reply. I checked the versions and they look good. xt_RTPENGINE is 11.1.1.3 and the daemon is 11.1.1.3-1~bpo11+1. Looking at /proc/rtpengine/0/list I see the packet and byte counters incrementing normally with 0 errors. In wireshark, capturing on any, I see the stream coming in on the private network interface but nothing going out through the public network interface. Everything is good until 5 seconds into the call when the kernelization happens.
Michel Pelletier
On Mon, Dec 12, 2022 at 2:19 PM Richard Fuchs rfuchs@sipwise.com wrote:
On 12/12/2022 14.53, [EXT] Michel Pelletier wrote:
I am proxying all RTP through RTPEngine. Everything works fine until about 5 seconds into the call, when rtpengine enters kernelization, after which all RTP forwarding ceases. I've checked the required iptables entries, and all looks good.
Inspect /proc/rtpengine/0/list while a call is running, in particular paying attention to the packet and byte counters.
Also double check that the version of the rtpengine daemon matches the version of the kernel module (and that the module has been reloaded if there have been any upgrades - `dmesg` or `kern.log` are good places to check that).
Cheers
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