Hi,
I am setting up Raspberry Pi to run Kamailio with mediaproxy-ng. This machine is running on local LAN behind a DSL router. Using dynamic DNS and DMZ services of router, i can access this box from the Internet.
However, i do not know how to define advertised_address parameter to public IP of router. The public IP is dynamic and changes roughly every 12 hours or so. Is there any way kamailio can automatically learn this dynamic public IP and use that as advertised_address?
Something similar to Asterisk's res_stun_monitor module,
https://reviewboard.asterisk.org/r/854/
Any help will be greatly appreciated.
Thank you.
On 02/02/2014 08:14 PM, Muhammad Shahzad wrote:
Is there any way kamailio can automatically learn this dynamic public IP and use that as advertised_address?
Not inherently. But you can devise some external process (e.g. cron job, script) to accomplish this.
A wiser idea, however, would be to run Kamailio on a real, public server, not behind
On 02/02/2014 08:17 PM, Alex Balashov wrote:
A wiser idea, however, would be to run Kamailio on a real, public server, not behind
DNAT + dynamic IP. :-)
(crap, accidentally hit Ctrl+S, sorry).
Yes, I can either move to static IP for router OR bind kamailio with ddclient, so that whenever ddclient reports an IP change i restart kamailio with new advertised_address. But these are out of the box solutions. I wonder if we have any "in-the-box" solution. :-)
Thank you.
On Mon, Feb 3, 2014 at 2:17 AM, Alex Balashov abalashov@evaristesys.comwrote:
On 02/02/2014 08:17 PM, Alex Balashov wrote:
A wiser idea, however, would be to run Kamailio on a real, public
server, not behind
DNAT + dynamic IP. :-)
(crap, accidentally hit Ctrl+S, sorry).
-- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
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
On 02/02/2014 08:29 PM, Muhammad Shahzad wrote:
Yes, I can either move to static IP for router OR bind kamailio with ddclient, so that whenever ddclient reports an IP change i restart kamailio with new advertised_address. But these are out of the box solutions. I wonder if we have any "in-the-box" solution. :-)
Not that I know of. STUN and the like are client-side constructs, designed to be used by UACs, which Kamailio is not. A proxy does not endogenously originate messages (at least, formally), only receives and relays them, so the thinking is that other SIP elements should know how to reach the proxy, not that the proxy should be telling them how to reach it. Putting Kamailio behind consumer-grade DNAT inverts the envisaged client-server model.
Yes, I agree. It is just an experimental setup to see capabilities of Raspberry PI as personal web sockets server (running kamailio) over LAN within a house for audio/video calls, media sharing etc. etc. (kind of replacement for DLNA). For that part it works great.
I was just thinking (at 0230 am in the morning here, hehe) of extending these services to connect to outside world e.g. to a group of friends houses (no commercial use), each house has its own server and can connect to a predefined list of servers for interaction.
Thank you.
On Mon, Feb 3, 2014 at 2:31 AM, Alex Balashov abalashov@evaristesys.comwrote:
On 02/02/2014 08:29 PM, Muhammad Shahzad wrote:
Yes, I can either move to static IP for router OR bind kamailio with
ddclient, so that whenever ddclient reports an IP change i restart kamailio with new advertised_address. But these are out of the box solutions. I wonder if we have any "in-the-box" solution. :-)
Not that I know of. STUN and the like are client-side constructs, designed to be used by UACs, which Kamailio is not. A proxy does not endogenously originate messages (at least, formally), only receives and relays them, so the thinking is that other SIP elements should know how to reach the proxy, not that the proxy should be telling them how to reach it. Putting Kamailio behind consumer-grade DNAT inverts the envisaged client-server model.
-- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
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
-
Alex Balashov -
Muhammad Shahzad