18 Jul
2016
18 Jul
'16
2:49 a.m.
Dear list
I am quite new to Kamailio and i have been able to solve some NAT Traversal
issues with symmetric SIP+RTP putting kamailio+rtpproxy behind NAT, i am
also load balancing some asterisk boxes for transcoding and some other
services like voicemail. Also i am using SIPp for load testing
Now the question is that, while everything is working great with NAT (even
when i am using SIPp for testing with low load) when i am about to test it
with more than 150 calls or something i am starting to get the following
error:
*kamailio[34549]: ERROR: rtpproxy [rtpproxy.c:2735]: force_rtp_proxy():
incorrect port 0 in reply from rtp proxy*
I have been trying to look at some SIP packets when the error starts and i
am not seeing anything out of the normal (while being quite difficult to
debug when having so many concurrent calls at SIP level)
My configuration doesnt have anything new, the only thing is that, because
Kamailio is behind NAT i used some ideas from some other users and debates
from this same mailing list:
*# RTPProxy control*
*route[NATMANAGE] {*
*#!ifdef WITH_NAT*
* if(is_request()) {*
* if(has_totag()) {*
* if(check_route_param("nat=yes")) {*
* setbflag(FLB_NATB);*
* }*
* }*
* }*
* if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))*
* return;*
* if(!route(FROMASTERISK)){*
* force_send_socket(10.0.1.207);*
* rtpproxy_manage("rw","10.0.1.206");*
* }else{*
* force_send_socket(10.0.1.206);*
* rtpproxy_manage("rw","10.0.5.203");*
* }*
* if (is_request()) {*
* if (!has_totag()) {*
* add_rr_param(";nat=yes");*
* }*
* }*
* if (is_reply()) {*
* if(isbflagset(FLB_NATB)) {*
* fix_nated_contact();*
* }*
*#!endif*
* return;*
*}*
This solution is based of someone's idea from this mailing list:
http://lists.sip-router.org/pipermail/sr-users/2013-January/076254.html
As you can see in my configuration, my "public network" is really private
network so i tweak the NATDETECT route to not include RFC1918 networks as
part of the detection
*# Caller NAT detection route*
*route[NATDETECT] {*
*#!ifdef WITH_NAT*
*if (nat_uac_test("1")) {*
* if (nat_uac_test("18")) {*
* force_rport();*
* if (is_method("REGISTER")) {*
* fix_nated_register();*
* } else {*
* fix_nated_contact();*
* }*
* setflag(FLT_NATS);*
* return;*
* }*
* }*
*#!endif*
* return;*
*}*
Also i would like to know how may i use RTPProxy logs?, i tried to
configure it like this:
/etc/rsyslog.conf
*# Kamailio logging*
*local0.*
-/var/log/kamailio.log*
*#RTPProxy logging*
*local3.*
/var/log/rtpproxy.log*
/etc/sysconfig/rtpproxy
*OPTIONS="-l 10.0.1.206 -A 10.0.5.203 -s udp:127.0.0.1:7722
<http://127.0.0.1:7722> -r /var/lib/rtpproxy/sessions -d DBUG:LOG_LOCAL3 -m
35000 -M 55000 -F"*
I cannot see anyhing in the logs
Thank you very much
Alejandro
18 Jul
18 Jul
3:18 a.m.
On 07/17/2016 05:49 PM, TEG AMJG wrote:
Dear list
I am quite new to Kamailio and i have been able to solve some NAT
Traversal issues with symmetric SIP+RTP putting kamailio+rtpproxy
behind NAT, i am also load balancing some asterisk boxes for
transcoding and some other services like voicemail. Also i am using
SIPp for load testing
Now the question is that, while everything is working great with NAT
(even when i am using SIPp for testing with low load) when i am about
to test it with more than 150 calls or something i am starting to get
the following error:
/kamailio[34549]: ERROR: rtpproxy [rtpproxy.c:2735]:
force_rtp_proxy(): incorrect port 0 in reply from rtp proxy/
A guess, but each call takes 4 file descriptors, so you might be running
into the normal os limit of 1024 open files per process.
Recent rtpproxy versions have the -L option to increase the limit. It
should be 4 times the number of concurrent calls you expect to handle.
Again, just a guess.
8:43 a.m.
Yes, that's probably it. There should be also some error in the log that
rtpproxy emits, so you might want to check that. I see people run into this
from time to time, perhaps we need to check and put out a big warning in
red if the OS limit appers to be too low?
-Max
On Sun, Jul 17, 2016 at 3:18 PM, Nathan Angelacos <nangel(a)nothome.org>
wrote:
On 07/17/2016 05:49 PM, TEG AMJG wrote:
Dear list
I am quite new to Kamailio and i have been able to solve some NAT
Traversal issues with symmetric SIP+RTP putting kamailio+rtpproxy behind
NAT, i am also load balancing some asterisk boxes for transcoding and some
other services like voicemail. Also i am using SIPp for load testing
Now the question is that, while everything is working great with NAT
(even when i am using SIPp for testing with low load) when i am about to
test it with more than 150 calls or something i am starting to get the
following error:
/kamailio[34549]: ERROR: rtpproxy [rtpproxy.c:2735]: force_rtp_proxy():
incorrect port 0 in reply from rtp proxy/
A guess, but each call takes 4 file descriptors, so you might be running
into the normal os limit of 1024 open files per process.
Recent rtpproxy versions have the -L option to increase the limit. It
should be 4 times the number of concurrent calls you expect to handle.
Again, just a guess.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
10:59 a.m.
Hi again
Yes, i feel very dumb because i actually faced this problem in my testing
with SIPp and with Asterisk before and it was all about open file
description. I probably didnt think about it because I couldnt find
anything in the logs about it which it is quite weird, the only thing that
logs is the one mentioned before, I feel sorry for wasting your time but at
the same time i have to thanks to you guys for helped me out.
Best Regards.
Alejandro
2016-07-17 23:43 GMT-04:00 Maxim Sobolev <sobomax(a)sippysoft.com>om>:
Yes, that's probably it. There should be also some
error in the log that
rtpproxy emits, so you might want to check that. I see people run into this
from time to time, perhaps we need to check and put out a big warning in
red if the OS limit appers to be too low?
-Max
On Sun, Jul 17, 2016 at 3:18 PM, Nathan Angelacos <nangel(a)nothome.org>
wrote:
--
-
Saludos a todos
On 07/17/2016 05:49 PM, TEG AMJG wrote:
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
Dear list
I am quite new to Kamailio and i have been able to solve some NAT
Traversal issues with symmetric SIP+RTP putting kamailio+rtpproxy behind
NAT, i am also load balancing some asterisk boxes for transcoding and some
other services like voicemail. Also i am using SIPp for load testing
Now the question is that, while everything is working great with NAT
(even when i am using SIPp for testing with low load) when i am about to
test it with more than 150 calls or something i am starting to get the
following error:
/kamailio[34549]: ERROR: rtpproxy [rtpproxy.c:2735]: force_rtp_proxy():
incorrect port 0 in reply from rtp proxy/
A guess, but each call takes 4 file descriptors, so you might be running
into the normal os limit of 1024 open files per process.
Recent rtpproxy versions have the -L option to increase the limit. It
should be 4 times the number of concurrent calls you expect to handle.
Again, just a guess.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
2859
days inactive
2860
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3 comments
3 participants
participants (3)
-
Maxim Sobolev -
Nathan Angelacos -
TEG AMJG