[Users] ACK loop after receiving 404 from remote GW

[Bogdan-Andrei Iancu]

Hi Taylor,

The ACK generated by the UAC is totally bogus: different From TAG and 
different CSEQ than in INVITE. That prevents openser to match the ACK to 
the INVITE transaction - in this case, the ACK will be simply fwded 
based on RURI (instead of being absorbed).

regards,
bogdan
   

Taylor Carpenter wrote:
> I am getting a ACK loop after receiving a 404 from a remote GW.  I am
> starting the call using sipp for testing.
>
> 	sipp -r 1 -l 1 -d 5000 -s 8989 -p 5061 -sn uac 10.14.18.22
>
> The ngrep trace is showing Via and From set to 127.0.0.1 for the
> communication between OpenSER and the sipp system.  The ngrep output and
> the routes from the openser.cfg are at
>
> 	http://pastebin.ca/493807
>
> I assume the Via/From being set to 127.0.0.1 may be the issue, which I
> assume I could change from sipp, but I would also like OpenSER to catch
> the loop.
>
> Taylor
>
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