That looks to me that an ACK was received at kamailio for a response that it generated (not relayed) to the UAC. It's normal for the SL module to absorb such an ACK. It's not an error condition. Your original message was about "core:drop_requests", so I doubt that it's related. My same advice applies: take traces and logs, and correlate them.
Also I have another query, For these drop requests, How do we acknowledge in kamailio?
What do you mean, exactly?
James
On Thu, 26 Oct 2023 at 13:11, satyaprakash ch chiramchetty.satyaprakash@gmail.com wrote:
Hi,
Thanks for the reply,
When I was testing, I found the below log.
Log ==== DEBUG: sl [sl_funcs.c:462]: sl_filter_ACK(): SL local ACK found -> dropping it!
On Wed, Oct 25, 2023 at 12:44 PM Henning Westerholt hw@gilawa.com wrote:
Hello,
the sanity module can be used for request and reply checks, as e.g. visible in the default configuration. It might be a bit too short documented in the module readme.
Cheers,
Henning Westerholt
-- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://gilawa.com
-----Original Message----- From: James Browne via sr-users sr-users@lists.kamailio.org Sent: Dienstag, 24. Oktober 2023 17:55 To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Cc: satyaprakash ch chiramchetty.satyaprakash@gmail.com; James Browne james@frideo.com Subject: [SR-Users] Re: Inquiry Regarding Kamailio Behavior and Drop Requests
I expect that it's not related, because the documentation is clear that the function relates to requests, not responses.
https://kamailio.org/docs/modules/5.5.x/modules/sanity.html#sanity.f.sanit y_check
- 4.1. sanity_check([msg_checks [, uri_checks]])
- This function makes a row of sanity checks over the given SIP request...
It seems simple: check the logs from the xlog command and see what you find. If it's not clear enough, add the Call-ID to the log message, and then also capture (tshark/tcpdump) traffic for subsequent analysis.
James
On Mon, 16 Oct 2023 at 16:52, satyaprakash ch via sr-users <sr- users@lists.kamailio.org> wrote:
Hi,
We possess a code within Kamailio, which specifically handles malformed SIP
responses. Below is the code snippet:
reply_route Copy code if(!sanity_check("17604", "6")) { xlog("Malformed SIP response from $si:$sp\n"); drop;
Additionally, we have Kamailio drop request statistics as follows:
Command: kamctl stats | grep core:drop_requests Output of the command: core:drop_requests = 5
My queries are:
- Is the aforementioned "reply_route" related to the drop requests we are
experiencing?
- If it is not related, what could be the cause of the drop requests?
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