Hello,

the forward() doesn't take variables as parameter, you have to set $ru or $du to the address where you want to send and then just use forward().

Also, rewrite*() functions do not work with variables.

In assignments, inside the strings of expressions, the vars are not evaluated, you need to use concatenation (+):

$du = "sip:" + $var(cancel_dst) + ":5060;transport=udp";

Cheers,
Daniel

On 21/03/16 13:17, Grant Bagdasarian wrote:

Hi Daniel,

 

I’ve tried with htable implementation, but I can’t seem to use a variable as the argument for the forward function.

I’ve tried multiple possibilities:

 

forward($avp(s:cancel_dst));

forward(“$avp(s:cancel_dst)”);

 

forward($var(cancel_dst));

forward(“$var(cancel_dst)”);

 

forward($sht(cancel=>$ci));

forward(“$sht(cancel=>$ci)”);

 

I keep getting the following error:

 

CRITICAL: <core> [proxy.c:265]: mk_proxy(): could not resolve hostname: "$avp(s:cancel_dst)"

Or when I don’t enclose the variable in quotes an error about the parameter requiring a string.

 

I’ve also tried using the following steps, but rewritehost doesn’t allow variables too L

 

rewritehost(“$var(cancel_dst)”);

$du = "sip:$var(cancel_dst):5060;transport=udp";

 

Any ideas?


Regards,

 

Grant

 

From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant Bagdasarian
Sent: Monday, March 21, 2016 10:01 AM
To: 'miconda@gmail.com' <miconda@gmail.com>; Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Hello Daniel,

 

Thank you for figuring this out and explaining it to me! This has helped me a lot!

 

Regards,

 

Grant

 

From: Daniel-Constantin Mierla [mailto:miconda@gmail.com]
Sent: Friday, March 18, 2016 4:33 PM
To: Grant Bagdasarian <gb@cm.nl>; Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Hello,

the problem is that the device you interconnect with (Server: sbc_5) is not sending all the Via headers from INVITE in the 487 -- it is only one Via:

# U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 487 Request Cancelled.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.

Notice the 100 trying Via stack:

# U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060>.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.


My guess that the sbc_5 is so poor implemented that it takes the Via from last request, which is CANCEL, but CANCEL is a hop-by-hop request in this case. If my guess is confirmed, the implementation of sbc_5 is really far away from RFC3261, something that I haven't probably seen since 2002/3.

To test, you can try to use forward() for CANCEL instead of t_relay(). But you need to know where to send it -- same address as for INVITE -- you can hardcode some values in config for sake of simplicity to test. A proper workaround can be built using htable module to store where the invite was sent, using call-id as a key.

Cheers,
Daniel

On 18/03/16 15:43, Grant Bagdasarian wrote:

Hi Daniel,

 

No problem J

 

Our devices are kamailios. Our customers use different equipment for sending traffic and I’m not sure what kind of equipment our carriers are using. So, I can’t really tell what device they’re using. My test was done using Bria (X-Lite) acting as a “customer”.

 

Regards,

 

Grant

 

From: Daniel-Constantin Mierla [mailto:miconda@gmail.com]
Sent: Friday, March 18, 2016 10:25 AM
To: Grant Bagdasarian <gb@cm.nl>; Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Hello,

with CeBIT trip this week, I didn't get the change to look too much at it...

What is the device sending the reply to INVITE?

Cheers,
Daniel

On 18/03/16 10:05, Grant Bagdasarian wrote:

Hello Community,

 

Could someone point me into the right direction for fixing this issue with CANCEL replies?

 

Regards,

 

Grant

 

From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Grant Bagdasarian
Sent: Tuesday, March 15, 2016 8:47 PM
To: 'miconda@gmail.com' <miconda@gmail.com>; Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Any ideas how to solve this?

Regards,

Grant

From: sr-users <sr-users-bounces@lists.sip-router.org> on behalf of Grant Bagdasarian <gb@cm.nl>
Sent: Monday, March 14, 2016 3:09:47 PM
To: 'miconda@gmail.com'; Kamailio (SER) - Users Mailing List
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Hello Daniel,

 

Carrier: 10.0.0.1

Kamailio 1: 10.14.0.1

Kamailio 2: 10.14.0.2

 

I also removed the SDP from the INVITE and the 183 messages.

 

This is the trace from the Kamailio which directly communicates with the Carrier.

 

U 10.14.0.2:5060 -> 10.14.0.1:5060

INVITE sip:0031123456789@10.14.0.1:5060 SIP/2.0.

Record-Route: <sip:10.14.0.2;lr=on>.

Record-Route: <sip:10.14.0.3;lr=on>.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.

Max-Forwards: 68.

Contact: <sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89>.

To: <sip:0031123456789@10.14.0.3:5060>.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 INVITE.

Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO, MESSAGE.

Content-Type: application/sdp.

User-Agent: Bria 4 release 4.2.1 stamp 78100.

Content-Length: 431.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 100 trying -- your call is important to us.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.

To: <sip:0031123456789@10.14.0.3:5060>.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 INVITE.

Server: kamailio (4.3.4 (x86_64/linux)).

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.0.0.1:5060

INVITE sip:0031123456789@10.0.0.1:5060 SIP/2.0.

Record-Route: <sip:10.14.0.1;lr=on>.

Record-Route: <sip:10.14.0.2;lr=on>.

Record-Route: <sip:10.14.0.3;lr=on>.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.

Max-Forwards: 67.

Contact: <sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89>.

To: <sip:0031123456789@10.14.0.3:5060>.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 INVITE.

Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO, MESSAGE.

Content-Type: application/sdp.

User-Agent: Bria 4 release 4.2.1 stamp 78100.

Content-Length: 431.

 

#

U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 100 Trying.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.

Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.2:5060 -> 10.14.0.1:5060

CANCEL sip:0031123456789@10.14.0.1:5060 SIP/2.0.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

Max-Forwards: 68.

To: <sip:0031123456789@10.14.0.3:5060>.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 CANCEL.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.0.0.1:5060

CANCEL sip:0031123456789@10.0.0.1:5060 SIP/2.0.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

Max-Forwards: 67.

To: <sip:0031123456789@10.14.0.3:5060>.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 CANCEL.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 200 canceling.

Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.

To: <sip:0031123456789@10.14.0.3:5060>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-52bb.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 CANCEL.

Server: kamailio (4.3.4 (x86_64/linux)).

Content-Length: 0.

.

 

#

U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 200 OK.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 CANCEL.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 487 Request Cancelled.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.0.0.1:5060

ACK sip:0031123456789@10.0.0.1:5060 SIP/2.0.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.

Max-Forwards: 67.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

CSeq: 2 ACK.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 487 Request Cancelled.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 487 Request Cancelled.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 487 Request Cancelled.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 487 Request Cancelled.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.

To: <sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.

Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Daniel-Constantin Mierla
Sent: Monday, March 14, 2016 2:44 PM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply

 

Hello,

what would be relevant here is seeing the INVITE request sent to 10.14.0.1:5060 -- paste it to the mailing list discussion. That is going to be used to generate 487, and the Via stack from it should be used there.

Cheers,
Daniel

On 14/03/16 13:23, Grant Bagdasarian wrote:

Hello,

 

We’re testing kamailio 4.3.4 with two kamailio’s communicating with each other. One of them is a gateway with rtpengine at the carrier side, the other is a basic sip router.

When calling a destination and cancelling the INVITE a 487 is received from the carrier and directly ACK’d by the first kamailio and in turn is forwarded to the second.

But the 487 response received by the 2nd kamailio doesn’t have a Via header which results in kamailio printing the error: receive_msg(): no via found in reply.

 

Any ideas why the forwarded 487 doesn’t contain a Via header and how to fix this?

 

Note: IP’s are changed.

 

Carrier: 10.0.0.1

Kamailio 1: 10.14.0.1

Kamailio 2: 10.14.0.2

 

U 10.0.0.1:5060 -> 10.14.0.1:5060

SIP/2.0 487 Request Cancelled.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=109ac722.

To: <sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.

Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.0.0.1:5060

ACK sip:003112345678@10.0.0.1:5060 SIP/2.0.

Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.

Max-Forwards: 67.

To: <sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.

From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.

Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.

CSeq: 2 ACK.

Content-Length: 0.

.

 

#

U 10.14.0.1:5060 -> 10.14.0.2:5060

SIP/2.0 487 Request Cancelled.

From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>;tag=109ac722.

To: <sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.

Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.

Contact: <sip:10.0.0.1:5060>.

CSeq: 2 INVITE.

Server: sbc_5.

Content-Length: 0.




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SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

 

-- 
Daniel-Constantin Mierla
http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com



-- 
Daniel-Constantin Mierla
http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

 

-- 
Daniel-Constantin Mierla
http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

-- 
Daniel-Constantin Mierla
http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com