Hi,
I made a role`s swap, the machine that was UAS became UAC, and the machine
that was UAC became UAS, and the packets comming from UAS arrive correctly
to asterisk and asterisk send to UAC, but the packets comming from UAC
aways had a bad checksum, so i can only simulate one way audio to the load
test. Seens like the problem is in the method/procedure that sends packets
from UAC if not the same that sends from UAS.
Thanks.
2016-10-29 8:11 GMT-02:00 sindelka <sinde...@ttc.cz>:
> Sorry, I was too quick when reading your initial message because 99% of
> "bad UDP checksum" cases are resolved this way.
>
> So reading it more carefully now, when you've mentioned trying different
> machines, did you try to swap the roles of the two machines running the UAC
> and UAS scenarios? I.e. can you confirm that if you run the UAC scenario
> with its RTP-containing pcap on the machine which replays its own
> RTP-containing pcap properly if the replay is spawned from an UAS scenario,
> the packets come to the Asterisk with a bad UDP checksum as well? And, vice
> versa, do the RTP packets sent from an UAS scenario running on the
> previously UAC machine have a correct UDP checksum on arrival to the
> Asterisk machine?
>
> If both answers are "yes", this would mean that the behaviour depends on
> whether the pcapplay is executed from an UAC or an UAS scenario. This is
> hard to believe, yet it would allow to suggest a workaround.
>
> Pavel
>
>
> Dne 28.10.2016 v 18:59 Paulo R. Vieira Jr napsal(a):
>
> Hi, thanks for response.
>
> They are all (uas, asterisk and uac) on different machines. The packets
> were captured on asterisk server. The packets are not being delivered to
> asterisk, with "rtp set debug on" no packets are seen.
> The server stays 98% 99% idle.
> The firewall is disable, the ports are correct and sip exchange messages
> too. i have no idea what to do...
>
> Thanks.
>
> 2016-10-28 14:47 GMT-02:00 sindelka <sinde...@ttc.cz>:
>
>> Hi Paulo,
>>
>> on which machine did you run Wireshark/tcpdump? The thing is that the
>> UDP/TCP/IP checksums are often wrong in the capture if capturing on the
>> sending machine because the frame is captured before the checksum is
>> actually calculated. So it may be just a red herring and the actual
>> problem may be somewhere else.
>>
>> Pavel
>>
>>
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>
>
>
> --
> Paulo R. Vieira Jr
>
>
> ------------------------------------------------------------------------------
> The Command Line: Reinvented for Modern Developers
> Did the resurgence of CLI tooling catch you by surprise?
> Reconnect with the command line and become more productive.
> Learn the new .NET and ASP.NET CLI. Get your free copy!http://sdm.link/telerik
>
>
>
> _______________________________________________
> Sipp-users mailing
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>
>
> ------------------------------------------------------------
> ------------------
> The Command Line: Reinvented for Modern Developers
> Did the resurgence of CLI tooling catch you by surprise?
> Reconnect with the command line and become more productive.
> Learn the new .NET and ASP.NET CLI. Get your free copy!
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Paulo R. Vieira Jr
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