[SR-Users] Kamailio $Rp variable showing wrong port

[Shahid Hussain]

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 at 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 at 172.27.45.198 replystatus:200 len:416

Jun 24 15:10:08 localhost /usr/sbin/kamailio[6223]: WARNING: {2 10 OPTIONS
1ab6573a4640823b-6209 at 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 at localhost>;tag=1ae6c95d92f9ea9ce927f715de5c48c8-eb141029#015#012To:
<sip:172.27.44.125:5060;transport=tcp>;tag=a9d542e0#015#012Call-ID:
1ab6573a4640823b-6209 at 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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