Hello, thanks for sharing, very useful to know.
Was the wrong location of the iptables module a result of ugrading some packages (like kernel or iptables)? I assume the initial installation deploys the module in the right location. Asking to see if one needs to do a re-install of the rtpengine after kernel or other specific updates. Can step 2 be solved by a reboot of the server? Cheers, Daniel On 07.01.19 02:42, David Cunningham wrote: > Hello all, > > We solved this issue with the help of Richard Fuchs. There were two > issues: > > 1. The iptables module was in the wrong location and thus wasn't > loaded. The daemon thought that the kernel was handling packets and > took the ROC updates from it, but didn't actually see any packets and > so the ROC reset, resulting in decryption errors. The correct location > can be found with "pkg-config xtables --variable=xtlibdir". > > 2. Even after fixing the above, the iptables module didn't load > properly until rtpengine was stopped, the iptables rules removed, the > kernel module unloaded, and then this process reversed to load > everything again. > > I hope this helps someone else in the future. > > > On Wed, 12 Dec 2018 at 11:05, David Cunningham > <[email protected] <mailto:[email protected]>> wrote: > > Hello, > > We're having an issue with rtpengine (used by Kamailio) where > audio works initially, but then after an apparently random amount > of time stop working. We see that when audio stops working > rtpengine logs this: > > Dec 10 09:58:57 hostname rtpengine[376]: WARNING: > [Pl1SeGDssOsDNWQdvey4lg.. port 48766]: Discarded invalid SRTP > packet: authentication failed > > It then logs similar messages until the call hangs up. No such > messages were logged while audio was working. > > Searching for this error message suggests that a change in the > SSRC can cause the problem, but we don't see any such change in > the PCAP. The source IP, port, codec, and SSRC all stay the same, > and the Sequence increments as normal. > > Does anyone have suggestions on where to look next? We can share > the PCAP privately if that would help anyone. > > Thanks for any advice! > > -- > David Cunningham, Voisonics Limited > http://voisonics.com/ > USA: +1 213 221 1092 > New Zealand: +64 (0)28 2558 3782 > > > > -- > David Cunningham, Voisonics Limited > http://voisonics.com/ > USA: +1 213 221 1092 > New Zealand: +64 (0)28 2558 3782 > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com
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