Re: [OpenSIPS-Users] OpenSIPs mhomed + rtpproxy + nated UAC = problem with SDP

Fri, 05 Apr 2013 00:05:46 -0700 

Hi Ovidiu,

It does not change anything, I've already tried.

Here's the routing scenario the call goes through (simplified) :

route[uac_nat]
{
    if (is_method("INVITE") && has_body("application/sdp"))
    {
                force_rport();
                if(engage_rtp_proxy("feir"))
                {
                        t_on_reply("uac_nat");
                }
    }
}

onreply_route[uac_nat]
{
xlog("onreply_route, call initiator seems to be behind nat"); 
                rtpproxy_answer("fier");
}

usrloc looks good :
Contact:: <sip:[email protected]:1029>;q=;expires=150;flags=0x0;cflags=0x300;socket=<udp:10.7.59.2:5060>;methods=0xFFFFFFFF;*received=<sip:10.7.59.1:1028*>;user_agent=<Oceanet-test> 

Cédric
Le 04/04/2013 18:32, Ovidiu Sas a écrit :

You need to use "ie" on offer and "ei" on answer on one call direction.
For the opposite call direction, use "ei" on offer an "ie" on answer.

Regards,
Ovidiu Sas

On Thu, Apr 4, 2013 at 12:24 PM, OCEANET - Cédric BASSAGET
<[email protected]> wrote:

Hello,

For my first post on this mailing list, I'm trying to make opensips working
in this scheme (that's a lab test, so don't take care of my "public" ip
addresses) :

UAC (asterisk) <---------------------> routeur(nat) <------------------>
opensips (mhomed) <----------> sip privoder
10.10.1.1                               10.10.1.254 / 10.7.59.1
10.7.59.2 / 10.0.95.10                  10.0.95.1

mhomed is set to 1
I have a rtpproxy set in bridge mode on my opensips, like this :
/usr/local/bin/rtpproxy -p /var/run/rtpproxy.pid -u rtpproxy -d DBUG
LOG_LOCAL5 -m 10000 -M 20000 -l 10.0.95.10 10.7.59.2 -s udp:127.0.0.1 9999

I'm trying to establish a call from my asterisk to a public phone number,
but I have a problem with SDP reply (200 OK) , from my opensips to my UAC.
SDP c= value is still 10.0.95.10, instead of 10.7.59.2. That's the only
thing that is not correct in the SIP session. I can't find why c= value is
not correct in the 200 OK.

I use engage_rtp_proxy("fr"), but I tried with many combinations
(rtpproxy_offer / answer, params=fier, params=feir).

If somebody has already been in this situation, I would appreciate his help.
Thanks for your replies, please tell me if you need more captures or
anything else

Here's a short description of SIP requests, seen from OpenSIPS :


##### INVITE FROM MY UAC TO OPENSIPS ###############
U 2013/04/04 18:18:09.621724 10.7.59.1:1028 -> 10.7.59.2:5060
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.7.59.1:1029;branch=z9hG4bK13253a27;rport
Max-Forwards: 70
From: "100" <sip:[email protected]:1029>;tag=as747d5e5b
To: <sip:[email protected]>
Contact: <sip:[email protected]:1029>
Call-ID: [email protected]:5060
CSeq: 102 INVITE
User-Agent: Oceanet-test
Date: Thu, 04 Apr 2013 16:12:34 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH
Supported: replaces
Content-Type: application/sdp
Content-Length: 282

v=0
o=root 1416933599 1416933599 IN IP4 10.10.1.1
s=Asterisk PBX 1.8.20.1
c=IN IP4 10.7.59.1
t=0 0
m=audio 17282 RTP/AVP 9 0 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

#####INVITE FROM OPENSIPS TO PROVIDER ###############
U 2013/04/04 18:18:09.622378 10.0.95.10:5060 -> 10.0.95.1:5060
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.95.10;branch=z9hG4bKbd97.ced0f0b2.0
Max-Forwards: 69
From: "100" <sip:[email protected]:1029>;tag=as747d5e5b
To: <sip:[email protected]>
Contact: <sip:10.0.95.10;did=b0b.7e82f333>
Call-ID: [email protected]:5060
CSeq: 102 INVITE
User-Agent: Oceanet-test
Date: Thu, 04 Apr 2013 16:12:34 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH
Supported: replaces
Content-Type: application/sdp
Content-Length: 283

v=0
o=root 1416933599 1416933599 IN IP4 10.10.1.1
s=Asterisk PBX 1.8.20.1
c=IN IP4 10.0.95.10
t=0 0
m=audio 19392 RTP/AVP 9 0 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

##### REPLY FROM PROVIDER TO OPENSIPS ###############
U 2013/04/04 18:18:16.327567 10.0.95.1:5060 -> 10.0.95.10:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.95.10;branch=z9hG4bKbd97.ced0f0b2.0
Call-ID: [email protected]:5060
From: "100" <sip:[email protected]:1029>;tag=as747d5e5b
To: <sip:[email protected]>;tag=a94c095b773be1dd6e8d668a785a9c84530b7132
Contact: <sip:10.0.95.1;did=b0b.c3c431b5>
CSeq: 102 INVITE
Server: Dialogic-SIP/10.5.3.360 ACKBAR 0
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE
Supported: path, replaces, timer, tdialog
Accept: application/sdp, application/dtmf-relay, text/plain
Content-Type: application/sdp
Content-Length: 238

v=0
o=Dialogic_SDP 2521466 0 IN IP4 91.213.145.116
s=Dialogic-SIP
c=IN IP4 10.0.95.3
t=0 0
m=audio 10018 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=silenceSupp:off - - - -
a=ptime:20

#### REPLY FROM OPENSIPS TO UAC WITH WRONG SDP ################
U 2013/04/04 18:18:16.328296 10.7.59.2:5060 -> 10.7.59.1:1028
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.7.59.1:1029;branch=z9hG4bK13253a27;rport
Call-ID: [email protected]:5060
From: "100" <sip:[email protected]:1029>;tag=as747d5e5b
To: <sip:[email protected]>;tag=a94c095b773be1dd6e8d668a785a9c84530b7132
Contact: <sip:10.7.59.2;did=b0b.7e82f333>
CSeq: 102 INVITE
Server: Dialogic-SIP/10.5.3.360 ACKBAR 0
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE
Supported: path, replaces, timer, tdialog
Accept: application/sdp, application/dtmf-relay, text/plain
Content-Type: application/sdp
Content-Length: 239

v=0
o=Dialogic_SDP 2521466 0 IN IP4 91.213.145.116
s=Dialogic-SIP
c=IN IP4 10.0.95.10
t=0 0
m=audio 11526 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=silenceSupp:off - - - -
a=ptime:20


Cédric

_______________________________________________
Users mailing list
[email protected]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users







--
OCEANET
---------------------------------------------------------------
[AGENCE DU MANS]
7, rue des Frênes
ZAC de la Pointe
72190 SARGE LES LE MANS
[t] +33 (0)2.43.50.26.50
[f] +33 (0)2.43.72.21.14

[AGENCE D'ANGERS]
5, rue Fleming
Angers Technopole
49066 ANGERS
[t] +33 (0)2.41.19.28.65
[f] +33 (0)2.52.19.22.00

http://www.oceanet.com
http://www.oceanet-telecom.com


_______________________________________________
Users mailing list
[email protected]
http://lists.opensips.org/cgi-bin/mailman/listinfo/users

Reply via email to