On Thu, 24 Jun 2021 at 18:05, Shahid Hussain <shnx88@gmail.com> wrote:

Hi Giacomo,

All of my required test cases are working fine with the combination you suggested along with configuring the NON VIP address in ds_default_socket parameter of dispatcher. I will test the regression suite on this and update if there is any issue.

Thank you for your suggestion. Thanks Daniel as well for looking into this issue.

However I would still be curious to know what was the root cause, how the previous combination was taking us into strange issues where Kamailio was assuming 8080 as Received port. Is it not based on where the OPTION response arrived ?

Thanks & Regards,
Shahid
On Thu, Jun 24, 2021 at 7:39 PM Giacomo Vacca <giacomo.vacca@gmail.com> wrote:
Hi Shahid,

> This system also listens on port 8080 which is meant for websocket communication [...]
> [...] but Kamailio considering the response is on websocket port 8080 ,$Rp value is 8080

Do you see the same behaviour if you set the listen directive for SIP before the one for WS, in kamailio.cfg?
i.e.

listen=tcp:172.27.45.219:5060 advertise 172.27.45.198:5060

before

listen=tcp:172.27.45.219:MY_WS_PORT

?

Thanks,
Giacomo
On Thu, 24 Jun 2021 at 15:28, Shahid Hussain <shnx88@gmail.com> wrote:
Hi Daniel,
Sure, please check as per your availability.
I had tried the above option before adding ds_default socket in kamailio .cfg but the result was same. Now also I have tried, but still kamailio is declaring 8080 as received port .
Following is the dispatcher configuration I have tried now.
root@localhost ~]# kamcmd dispatcher.list
{
NRSETS: 1
RECORDS: {
SET: {
ID: 1
TARGETS: {
DEST: {
URI: sip:172.27.44.125:5060;transport=tcp
FLAGS: AP
PRIORITY: 0
ATTRS: {
BODY: duid=sample-cas;maxload=1000;socket=tcp:172.27.45.219:5060
DUID: sample-cas
MAXLOAD: 1000
WEIGHT: 0
RWEIGHT: 0
SOCKET: tcp:172.27.45.219:5060
}
LATENCY: {
AVG: 3.750000
STD: 1.500000
EST: 3.750000
MAX: 6
TIMEOUT: 0
}
RUNTIME: {
DLGLOAD: 0
}
}
}
}
}
}

Jun 24 21:29:57 localhost /usr/sbin/kamailio[5169]: WARNING: {2 10 OPTIONS 0f80e2d95e09aca5-5158@172.27.45.198} <script>: SIP response received on 8080 protocol:tcp RIP:172.27.45.219 SIP:172.27.44.125 method:OPTIONS cid:0f80e2d95e09aca5-5158@172.27.45.198 replystatus:200 len:416
On Thu, Jun 24, 2021 at 6:25 PM Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

I will check the logs once I finish a few other tasks.

Meanwhile, maybe you can try to set the socket per destination to see if it makes any difference, like

1 sip:172.27.44.125:5060;transport=tcp 0 0 duid=sample-cas;maxload=1000;socket=tcp:172.27.45.219:5060

Cheers,
Daniel

On 24.06.21 12:48, Shahid Hussain wrote:
Hi Daniel,
Please find the debug logs attached. You can refer OPTION message of timestamp 18:43:35 though there are multiple request.

There is a line in log says tcp worker on 8080 though I have not specified in kamailio.cfg.

Jun 24 18:43:35 localhost kamailio: 44(11820) DEBUG: <core> [core/tcp_main.c:4517]: handle_tcpconn_ev(): sending to child, events 1
Jun 24 18:43:35 localhost kamailio: 44(11820) DEBUG: <core> [core/tcp_main.c:4190]: send2child(): selected tcp worker idx:6 proc:42 pid:11818 for activity on [tcp:172.27.45.219:8080], 0x7fca749c2d60

Attached kamailio.cfg also.
On Thu, Jun 24, 2021 at 3:31 PM Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

can you set debug=3 in kamailio.cfg and then reproduce the case and send here all the syslog message printed by kamailio?

Cheers,
Daniel

On 24.06.21 11:37, Shahid Hussain wrote:
Hi Daniel,
Attaching the filtered pcap with response for an OPTION message.

I am also attaching the all pcap with no filter having all SIP messages being communicated, there is no data coming on port 8080.

Regards,

Shahid
On Thu, Jun 24, 2021 at 1:21 PM Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

the pcap shows only the OPTIONS requests, not the replies. Maybe you have to capture the traffic also on 8080 to catch it. It would important to see the reply and where it is sent back to kamailio.

Cheers,
Daniel

On 24.06.21 09:24, Shahid Hussain wrote:
Hi,
I have configured the dispatcher default socket as below IP , the expectation here is that kamailio should send all traffic from this IP (port will be ephemeral) over TCP.
modparam("dispatcher", "ds_default_socket", "tcp:172.27.45.219:5060")

This system also listens on port 8080 which is meant for websocket communication (dispatcher communication is over non websocket).

Kamailio is sending an OPTION message to dispatcher IP over TCP on 5060 and getting 200 OK response but Kamailio considering the response is on websocket port 8080 ,$Rp value is 8080.

onreply_route {
if (($Rp == 8080 ) && !(proto == WS))
{
xlog("L_WARN", "SIP response received on $Rp protocol:proto RIP:$Ri SIP:$si method:$rm cid:$ci replystatus:$rs len:$ml\n");
xlog("L_WARN", "SIP message received: $mb\n");
drop;
}

.....
....
}

Following is the output of above logs:
Jun 24 15:10:08 localhost /usr/sbin/kamailio[6223]: WARNING: {2 10 OPTIONS 1ab6573a4640823b-6209@172.27.45.198} <script>: SIP response received on 8080 protocol:tcp RIP:172.27.45.219 SIP:172.27.44.125 method:OPTIONS cid:1ab6573a4640823b-6209@172.27.45.198 replystatus:200 len:416

Jun 24 15:10:08 localhost /usr/sbin/kamailio[6223]: WARNING: {2 10 OPTIONS 1ab6573a4640823b-6209@172.27.45.198} <script>: SIP message received: SIP/2.0 200 OK#015#012Via: SIP/2.0/TCP 172.27.45.198:5060;branch=z9hG4bK4526.92b79f34000000000000000000000000.0;received=172.27.45.219#015#012From: <sip:dispatcher@localhost>;tag=1ae6c95d92f9ea9ce927f715de5c48c8-eb141029#015#012To: <sip:172.27.44.125:5060;transport=tcp>;tag=a9d542e0#015#012Call-ID: 1ab6573a4640823b-6209@172.27.45.198#015#012CSeq: 10 OPTIONS#015#012Allow: INVITE, ACK, BYE, OPTIONS, CANCEL, INFO, UPDATE, NOTIFY#015#012Content-Length: 0

Also I have attached a pcap.

Dispatcher.list configuration:
1 sip:172.27.44.125:5060;transport=tcp 0 0 duid=sample-cas;maxload=1000

Thanks,

Shahid
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Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
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Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
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