<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Thanks Alex.<div><br></div><div>So it turns out my rtpengine stopped working after our latest kernel upgrade to:</div><div><br></div><div><div>Linux sjomainrtpe30 5.3.0-1035-aws #37-Ubuntu SMP Sun Sep 6 01:17:09 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux</div></div><div><br></div><div>at the time, I was running an older version 8.0.x so I recompiled all the ngcp packages under this kernel and completed the installation without issues.</div><div><br></div><div>As soon as we started making test calls, I received 0 audio from those test endpoints. Looking at the rtpengine logs, I see several messages that's quite concerning:</div><div><br></div><div><div>Sep 11 18:43:41 sjomainrtpe30 kernel: [ 13.434623] xt_RTPENGINE: loading out-of-tree module taints kernel.</div><div>Sep 11 18:43:41 sjomainrtpe30 kernel: [ 13.434670] xt_RTPENGINE: module verification failed: signature and/or required key missing - tainting kernel</div><div>Sep 11 18:43:41 sjomainrtpe30 kernel: [ 13.434938] Registering xt_RTPENGINE module - version 9.0.1.0+0~mr9.0.1.0</div></div><div><br></div><div>and</div><div><br></div><div><div>Sep 11 18:49:50 sjomainrtpe30 rtpengine[1030]: WARNING: [2-7859@2600:1f1c:4ff:3e01:f64d:2f67:c0fa:c931 port 50000]: No support for kernel packet forwarding available (decryption cipher or HMAC not supported by kernel module)</div></div><div><br></div><div>which I assume is due to the first error I pasted.</div><div><br></div><div>So I tried</div><div><br></div><div>- rebooting the system which maybe the module wasn't loaded properly.</div><div>- I reran modprobe to make sure the module is installed</div><div>- I ran some dkms command to see if any error pop up due to the kernel version I'm running and I see no errors:</div><div><br></div><div><div>dkms status</div><div>falco, 0.20.0+d77080a, 5.3.0-1032-aws, x86_64: installed</div><div>falco, 0.20.0+d77080a, 5.3.0-1035-aws, x86_64: installed</div><div>ngcp-rtpengine, 9.0.1.0+0~mr9.0.1.0, 5.3.0-1032-aws, x86_64: installed</div><div>ngcp-rtpengine, 9.0.1.0+0~mr9.0.1.0, 5.3.0-1035-aws, x86_64: installed</div><div><br></div></div><div>So I'm running out of options.</div><div><br></div><div>Any advice?</div><div><br></div></div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Sep 11, 2020 at 3:17 PM Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">There is an RTPEngine mailing list, I believe, but RTPEngine questions <br>
are often posed here given its close association with Kamailio. What's <br>
going on?<br>
<br>
On 9/11/20 2:57 PM, Andrew Chen wrote:<br>
> Hey guys,<br>
> <br>
> Is this the right place to ask about rtpengine (ngcp) related issues <br>
> with kernel packet forwarding?<br>
> <br>
> Thanks.<br>
> <br>
> -- <br>
> Andy Chen<br>
> Sr. Telephony Lead Engineer<br>
> achen@ <mailto:<a href="mailto:achen@thinkingphones.com" target="_blank">achen@thinkingphones.com</a>><a href="http://fuze.com" rel="noreferrer" target="_blank">fuze.com</a> <<a href="http://fuze.com" rel="noreferrer" target="_blank">http://fuze.com</a>><br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr" style="font-size:12.8px">Andy Chen</div><div dir="ltr" style="font-size:12.8px"><div>Sr. Telephony Lead Engineer</div><div>415 516 5535 (M)</div><div><a href="mailto:achen@thinkingphones.com" target="_blank">achen@</a><a href="http://fuze.com" target="_blank">fuze.com</a></div><div><br></div></div></div></div></div></div>
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