14 Oct
2022
14 Oct
'22
2:22 p.m.
Hi Henning
Issue could be that I’m trying to do something that’s not possible .
We have an asterisk server behind kamailio . kamailio and asterisk are on the same subnet
10.3.1.0/24 . kamailo/rtpeengine are configured to advertise its WAN IP . would this mess
up SIP/RTP from kamailio to the asterisk server.
Best Regards
Gerry
From: Henning Westerholt <hw(a)gilawa.com>
Sent: Tuesday 11 October 2022 07:28
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Cc: Gerry Kernan <gerry(a)infinityit.ie>
Subject: RE: [SR-Users] kamailio & rtpengine question
Hello, from the module readme: „trust-address- flags that IP address in SDP should be
trusted. Starting with rtpengine 3͏͏
[Caution: External
Email]<https://summary.uk.defend.egress.com/v3/summary?ref=email&crI…
Hello,
from the module readme:
„trust-address - flags that IP address in SDP should be trusted. Starting with rtpengine
3.8, this is the default behaviour. In older versions, without this flag the RTP proxy
ignores the address in the SDP and uses source address of the SIP message as media address
which is passed to the RTP proxy”
You probably want to change this to SIP-source-address. Refer e.g. to the kamailio default
cfg.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Gerry Kernan
Sent: Monday, October 10, 2022 2:58 PM
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: Re: [SR-Users] kamailio & rtpengine question
Hi
Im using rtpengine_offer as below
rtpengine_offer("trust-address replace-origin replace-session-connection
ICE=remove")
is there another flag I need to set to change c=in to the WAN alias?
rtpeengine.conf
interface as set as below
### for different advertised address:
interface = 10.3.1.6!20.82.X.X
But the SDP send to client c=IN contains the private IP of the kamailio server
v=0
o=root 321199167 321199167 IN IP4 10.3.1.5
s=Asterisk PBX 18.12.1
c=IN IP4 10.3.1.6
t=0 0
m=audio 32080 RTP/AVP 0 8 103
a=maxptime:150
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:103 telephone-event/8000
a=fmtp:103 0-16
a=sendrecv
a=rtcp:32081
a=ptime:20
m=video 0 RTP/AVP 34
Best Regards
Gerry
From: Gerry Kernan
Sent: Saturday 8 October 2022 11:21
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: [SR-Users] kamailio & rtpengine question
Ive tried setting below in rtpengine.conf , but i get the same behaviour
interface=10.3.1.6!XX.XX.XX.XX
Best Regards
Gerry
From: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Sent: Saturday 8 October 2022 08:32
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc: Gerry Kernan <gerry@infinityit.ie<mailto:gerry@infinityit.ie>>
Subject: RE: [SR-Users] kamailio & rtpengine question
Hello,
you might need to set the advertised address for rtpengine as well:
https://github.com/sipwise/rtpengine/blob/master/etc/rtpengine.conf
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Gerry Kernan
Sent: Friday, October 7, 2022 10:49 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] kamailio & rtpengine question
Hi
Looking for advise if anyone could point out where im going wrong.
My setup is Kamailio Ver 5.6.0 running in azure , rtpengine Version: git-master-dc395d5,
behind kamailio I have asterisk ver 18.12.1
Kamailio conf I have interface set as below
listen=udp:10.3.1.6:5060 advertise WANIP:5060
and rtpengine.conf set as below
interface = eth0/10.3.1.5
but when I can make a call I don’t get any audio, rtpengine.log extract below shows that
rtp is going to the private IP rather that the Public IP of the phone that initiated the
call, do I need to set rtpengine_manage() to fix this?
Oct 7 09:38:58 kamailio-proxy rtpengine[8127]: INFO:
[NmE0MjdhMzA4NjUzYWVjMmRjYzIxNGJjMTY4ZTc2MWE. port 30278]: [core] Confirmed peer address
as 10.3.1.5:12890
Oct 7 09:38:58 kamailio-proxy rtpengine[8127]: INFO:
[NmE0MjdhMzA4NjUzYWVjMmRjYzIxNGJjMTY4ZTc2MWE. port 30278]: [core] Kernelizing media
stream: 10.3.1.5:12890 -> 10.3.1.6:30278 | 10.3.1.6:30298 -> 192.168.0.123:40042
Oct 7 09:39:00 kamailio-proxy rtpengine[8127]: INFO:
[NmE0MjdhMzA4NjUzYWVjMmRjYzIxNGJjMTY4ZTc2MWE. port 30279]: [core] Confirmed peer address
as 10.3.1.5:12891
Kind regards
gerry
Gerry Kernan | Technical Director
Mobile: +353(0)86-170 9790
[Graphical user interface, website Description automatically
generated]<https://www.infinityit.ie/>
[A picture containing text, clipart Description automatically generated,Icon Description
automatically generated]
