[OpenSIPS-Users] OpenSIPS debug logging SIP packets it deems non-local

Răzvan Crainea razvan at opensips.org
Mon Mar 20 04:29:46 EDT 2017

Hi, Jock!

If you are not seeing anything in the logs, it means that OpenSIPS 
doesn't even receive the message.
I would first try to make a ngrep trace and see if the reply message 
gets on the machine. Next, I would double check the firewall rules of 
the machine, perhaps disabling the completely.

Best regards,

Răzvan Crainea
OpenSIPS Solutions

On 03/15/2017 11:16 PM, Jock McKechnie wrote:
> We have an existing call flow layout that effectively runs:
> "SBC" -> "OpenSIPS LB" -> "FreeSWITCH"
> and have recently added a middleman for completely abstract reasons so
> it now goes:
> "SBC" -> "OpenSIPS A" -> "OpenSIPS LB" -> "FreeSWITCH"
> And all of a sudden the LB OpenSIPS is unable to see replies from the
> FreeSWITCH. My thinking at this time is that the LB has decided the
> 200 OKs coming back from FreeSWITCH are not actually destined for it,
> so it's ignoring them, as if were a stray packet on a different
> dialogue that it's not able to understand mid-stream and dumps.
> The LB OpenSIPS is running a reasonably old version of OpenSIPS at
> present, pending a mass corporate upgrade - 1.8.5.
> I have the 'debug' level set to '9' and I'm not seeing any hints that
> OpenSIPS is seeing the discarded/ignored SIP packets in the log at
> all. Is this action _not_ logged, or am I barking up the wrong tree
> and OpenSIPS isn't even seeing this packet at all?
> Apologies for long-winded lead up to a simple question, but I wanted
> to be thorough.
> As always, many thanks;
>   - Jock
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