10 Oct
2017
10 Oct
'17
6:36 p.m.
Hi All,
I am wondering if the following is possible. For simplicity imagine two
asterisk boxes and two kamailio proxies. Kamailio on the edge, asterisk in
the 'core'
Kamailio <=> Asterisk Asterisk <=> Kamailio
A user may register to either kamailio proxy, and a call may originate from
either Asterisk box where it will be sent to its *local *Kamailio proxy.
From there I'd like Kamailio to forward the request
to the AoR, following
the same path the registration took if it registered to the
other proxy, to
avoid NAT issues.
I think this requires a shared USRLOC table, and also for the proxy that
handled the registration to insert itself in the path of the USRLOC table.
The registrar module has the 'path_check_local' parameter which sounds
relevant, ignoring the path if the first hop is local.
I've included add_path_received() in my REGISTRAR routing block, however I
see 'Path: [not set]' in the USRLOC table.
Is it possible to force the insertion of the local proxy into the path
field?
One additional question, in the case of NAT keepalives, is it possible to
only send these from the proxy the received the register request?
Thanks in advance,
Matthew
11 Oct
11 Oct
3:39 a.m.
Hello,
you may need msg_apply_changes() there, see the details from:
-
https://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_header…
Cheers,
Daniel
On 11.10.17 00:36, Marrold wrote:
Hi All,
I am wondering if the following is possible. For simplicity imagine
two asterisk boxes and two kamailio proxies. Kamailio on the edge,
asterisk in the 'core'
Kamailio <=> Asterisk Asterisk <=> Kamailio
A user may register to either kamailio proxy, and a call may originate
from either Asterisk box where it will be sent to its /local /Kamailio
proxy. From there I'd like Kamailio to forward the request to the AoR,
following the same path the registration took if it registered to the
other proxy, to avoid NAT issues.
I think this requires a shared USRLOC table, and also for the proxy
that handled the registration to insert itself in the path of the
USRLOC table.
The registrar module has the 'path_check_local' parameter which sounds
relevant, ignoring the path if the first hop is local.
I've included add_path_received() in my REGISTRAR routing block,
however I see 'Path: [not set]' in the USRLOC table.
Is it possible to force the insertion of the local proxy into the path
field?
One additional question, in the case of NAT keepalives, is it possible
to only send these from the proxy the received the register request?
Thanks in advance,
Matthew
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com
5:15 a.m.
On Tue, Oct 10, 2017 at 11:36:56PM +0100, Marrold wrote:
I've included add_path_received() in my REGISTRAR
routing block, however I
see 'Path: [not set]' in the USRLOC table.
Is it possible to force the insertion of the local proxy into the path
field?
Like Daniel already mentioned, add the header and msg_apply_changes()
For example:
https://lists.kamailio.org//pipermail/sr-users/2015-April/087872.html
One additional question, in the case of NAT
keepalives, is it possible to
only send these from the proxy the received the register request?
I decided to not use kamailio itself for sending these OPTIONS but to
use a simple script that queries the database and simply opens a
connection to the local kamailio. Mainly because I needed to monitor
some UAC and alert when it wasn't reachable (even though it is present
in location). In your case select the approriate UACs on Path.
while($location=mysql_fetch_assoc($res))
{
usleep(1000);
$branch=uniqid();
$send[$location['id']]=0;
$dst=preg_replace('/.*(a)([^;]+);.*/',"$1",$location['path'])$location['path']);
$dst=explode(':',$dst);
if(count($dst)<2)
{
$dst[1]=5060;
}
$str=<<<EOS
OPTIONS {$location['contact']} SIP/2.0\r
Via: SIP/2.0/UDP 127.0.1.1:$listenport;branch=$branch;rport;alias\r
Route: {$location['path']}\r
From: sip:pinger@localhost;tag={$location['ruid']}\r
To: {$location['contact']}\r
Call-ID: {$location['id']}-$listenport-$uid@localhost\r
CSeq: 1 OPTIONS\r
Content-Length: 0\r
\r
EOS;
socket_sendto($sock,$str,strlen($str),MSG_EOR,$dst[0],$dst[1]);
5:45 a.m.
Hello,
On 11 Oct 2017 10:16 a.m., "Daniel Tryba" <d.tryba(a)pocos.nl> wrote:
On Tue, Oct 10, 2017 at 11:36:56PM +0100, Marrold wrote:
I've included add_path_received() in my REGISTRAR
routing block, however I
see 'Path: [not set]' in the USRLOC table.
Is it possible to force the insertion of the local proxy into the path
field?
Like Daniel already mentioned, add the header and msg_apply_changes()
For example:
https://lists.kamailio.org//pipermail/sr-users/2015-April/087872.html
One additional question, in the case of NAT
keepalives, is it possible to
only send these from the proxy the received the register request?
I decided to not use kamailio itself for sending these OPTIONS but to
use a simple script that queries the database and simply opens a
connection to the local kamailio. Mainly because I needed to monitor
some UAC and alert when it wasn't reachable (even though it is present
in location). In your case select the approriate UACs on Path.
while($location=mysql_fetch_assoc($res))
{
usleep(1000);
$branch=uniqid();
$send[$location['id']]=0;
$dst=preg_replace('/.*(a)([^;]+);.*/',"$1",$location['path'])$location['path']);
$dst=explode(':',$dst);
if(count($dst)<2)
{
$dst[1]=5060;
}
$str=<<<EOS
OPTIONS {$location['contact']} SIP/2.0\r
Via: SIP/2.0/UDP 127.0.1.1:$listenport;branch=$branch;rport;alias\r
Route: {$location['path']}\r
From: sip:pinger@localhost;tag={$location['ruid']}\r
To: {$location['contact']}\r
Call-ID: {$location['id']}-$listenport-$uid@localhost\r
CSeq: 1 OPTIONS\r
Content-Length: 0\r
\r
EOS;
socket_sendto($sock,$str,strlen($str),MSG_EOR,$dst[0],$dst[1]);
Just to add, another option is to use the nat_traversal module:
https://kamailio.org/docs/modules/stable/modules/nat_traversal.html. We use
it for this very reason.
Cheers,
Charles
--
Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered
office: Faraday Wharf, Innovation Birmingham Campus, Holt Street,
Birmingham Science Park, Birmingham B7 4BB.
12 Oct
12 Oct
4:02 p.m.
msg_apply_changes() worked nicely, thanks guys
On Wed, Oct 11, 2017 at 10:45 AM, Charles Chance <
charles.chance(a)sipcentric.com> wrote:
Hello,
On 11 Oct 2017 10:16 a.m., "Daniel Tryba" <d.tryba(a)pocos.nl> wrote:
On Tue, Oct 10, 2017 at 11:36:56PM +0100, Marrold wrote:
I've included add_path_received() in my
REGISTRAR routing block, however
I
see 'Path: [not set]' in the USRLOC
table.
Is it possible to force the insertion of the local proxy into the path
field?
Like Daniel already mentioned, add the header and msg_apply_changes()
For example:
https://lists.kamailio.org//pipermail/sr-users/2015-April/087872.html
One additional question, in the case of NAT
keepalives, is it possible to
only send these from the proxy the received the register request?
I decided to not use kamailio itself for sending these OPTIONS but to
use a simple script that queries the database and simply opens a
connection to the local kamailio. Mainly because I needed to monitor
some UAC and alert when it wasn't reachable (even though it is present
in location). In your case select the approriate UACs on Path.
while($location=mysql_fetch_assoc($res))
{
usleep(1000);
$branch=uniqid();
$send[$location['id']]=0;
$dst=preg_replace('/.*(a)([^;]+);.*/',"$1",$location['path'])$location['path']);
$dst=explode(':',$dst);
if(count($dst)<2)
{
$dst[1]=5060;
}
$str=<<<EOS
OPTIONS {$location['contact']} SIP/2.0\r
Via: SIP/2.0/UDP 127.0.1.1:$listenport;branch=$branch;rport;alias\r
Route: {$location['path']}\r
From: sip:pinger@localhost;tag={$location['ruid']}\r
To: {$location['contact']}\r
Call-ID: {$location['id']}-$listenport-$uid@localhost\r
CSeq: 1 OPTIONS\r
Content-Length: 0\r
\r
EOS;
socket_sendto($sock,$str,strlen($str),MSG_EOR,$dst[0],$dst[1]);
Just to add, another option is to use the nat_traversal module:
https://kamailio.org/docs/modules/stable/modules/nat_traversal.html. We
use it for this very reason.
Cheers,
Charles
Sipcentric Ltd. Company registered in England & Wales no. 7365592. Registered
office: Faraday Wharf, Innovation Birmingham Campus, Holt Street,
Birmingham Science Park, Birmingham B7 4BB.
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users(a)lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
2418
days inactive
2420
days old
4 comments
4 participants
participants (4)
-
Charles Chance -
Daniel Tryba -
Daniel-Constantin Mierla -
Marrold