From kiss.zoltan@adertis.hu Tue Jun 13 06:20:06 2023
From: Kiss =?utf-8?q?Zolt=C3=A1n?= <kiss.zoltan@adertis.hu>
To: sr-users@lists.kamailio.org
Subject: [SR-Users] Re: Cannot achieve rtpengine HA
Date: Tue, 13 Jun 2023 06:19:44 +0000
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Hi,

You have to move the IP address of the original rtpengine node to the "failov=
er" node also.
All of the virtual interfaces must exist on both nodes and you have to enable=
 non local IP bind support in the Linux kernel to achive this.

Regards,
Zoltan

From: Arsenijs Kabihno <a.kabihno(a)dynatech.lv>
Sent: Monday, June 12, 2023 9:18 AM
To: sr-users(a)lists.kamailio.org
Subject: [SR-Users] Cannot achieve rtpengine HA

Hello,

We are trying to achieve rtpengine HA solely with kamailio and rtpengine modu=
le.

In the following example call goes to rtpengine node 10.5.0.183:22222 and the=
n we stop rtpengine service on this node to simulate failure.
Client is triggering re-INVITE, but, apparently, kamailio sticks to initially=
 selected rtpengine, producing the following errors:

Jun 12 06:59:48 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) INFO: {2 2 INVITE j=
dl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INV=
ITE, status:200, extra_id: z9hG4bK55018600, rtpengine_answer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpriv1 direction=3Dp=
ub1 SIP-source-address via-branch=3Dextra rtcp-mux-offer generate-mid DTLS=3D=
passive SDES-off ICE=3Dforce RTP/SAVPF
Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) NOTICE: {2 2 INVITE=
 jdl9kq6fv51jcv1agk2e} acc [acc.c:287]: acc_log_request(): ACC: transaction a=
nswered: timestamp=3D1686553189;method=3DINVITE;from_tag=3Dfcn109nfe9;to_tag=
=3D01284cc8-bc58-4104-9629-8e6bb827d97f;call_id=3Djdl9kq6fv51jcv1agk2e;code=
=3D200;reason=3DOK;src_user=3D90362;src_domain=3D10.181.0.1;src_ip=3D10.5.0.1=
45;dst_ouser=3D123;dst_user=3D123;dst_domain=3D10.181.0.1
Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 31(37) INFO: {2 2 INVITE j=
dl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INV=
ITE, status:200, extra_id: z9hG4bK55018600, rtpengine_answer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpriv1 direction=3Dp=
ub1 SIP-source-address via-branch=3Dextra rtcp-mux-offer generate-mid DTLS=3D=
passive SDES-off ICE=3Dforce RTP/SAVPF
Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 51(57) INFO: {1 2 ACK jdl9=
kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, =
method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpub1 direction=3Dpr=
iv1 SIP-source-address rtcp-mux-demux DTLS=3Doff SDES-off ICE=3Dremove RTP/AVP
Jun 12 06:59:49 ap07stvp.xxxxxxx.xxx docker[9373]: 51(57) INFO: {1 2 ACK jdl9=
kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, =
method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpub1 direction=3Dpr=
iv1 SIP-source-address rtcp-mux-demux DTLS=3Doff SDES-off ICE=3Dremove RTP/AVP
Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) INFO: {2 3 INVITE j=
dl9kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: <null>, method:INV=
ITE, status:200, extra_id: z9hG4bK20888040, rtpengine_answer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpriv1 direction=3Dp=
ub1 SIP-source-address via-branch=3Dextra rtcp-mux-offer generate-mid DTLS=3D=
passive SDES-off ICE=3Dforce RTP/SAVPF
Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 27(33) ERROR: {2 3 INVITE =
jdl9kq6fv51jcv1agk2e} rtpengine [rtpengine.c:3070]: send_rtpp_command(): can'=
t send command "offer" to RTPEngine <udp:10.5.0.183:22222>
Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 54(60) INFO: {1 3 ACK jdl9=
kq6fv51jcv1agk2e} <script>: RTPENGINE branch_id:0 ruri: sip:10.5.2.192:5060, =
method:ACK, status:<null>, extra_id: <null>, rtpengine_offer: replace-origin =
replace-session-connection SIP-source-address direction=3Dpub1 direction=3Dpr=
iv1 SIP-source-address rtcp-mux-demux DTLS=3Doff SDES-off ICE=3Dremove RTP/AVP
Jun 12 07:01:26 ap07stvp.xxxxxxx.xxx docker[9373]: 54(60) ERROR: {1 3 ACK jdl=
9kq6fv51jcv1agk2e} rtpengine [rtpengine.c:2706]: rtpp_function_call(): no ava=
ilable proxies

We also found Daniel answer on similar issue here:
https://github.com/kamailio/kamailio/issues/2713#issuecomment-823138302

Please advise how it can be solved.

Kind regards,
Arsenijs




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