[SR-Users] Kamailio NAT traversal

[Daniel-Constantin Mierla]

Hello,

it should be straightforward starting with 3.3.0 to run Kamailio behind 
a port forwarding NAT (like amazon ec2), using the 'advertise' property 
of the listen parameter:

http://www.kamailio.org/wiki/cookbooks/3.3.x/core#listen

For example, default config will stay 'unchanged' apart of adding 
'advertise' attribute with public IP/port to listen. If the RTP has to 
be proxied, then I expect there is some extra work to do with the 
control of the rtpproxy, but if freeswitch stays in the loop of all 
calls and does media relaying (so no rtpproxy need), everything should 
just go.

Cheers,
Daniel


On 8/17/12 5:21 PM, Fred Posner wrote:
> Hi Spencer,
>
> Is Kamailio also natted? If so, you may have some issues... if not, it should work great. I run a server like this as well... very happy with it.
>
> I gave up on kamailio/freeswitch behind nat. Well, didn't give up, just don't have the time to make it work.
>
> With best regards,
>
> Fred
> http://qxork.com
>
> On Aug 17, 2012, at 11:04 AM, SamyGo wrote:
>
>> Hi,
>>
>> You kind of sound a little different here. Are you saying that the REGISTRATIONs will be handled by Freeswitch but store the registration Data in Kamailio "location" table !?
>>
>> Just go through the Kamailio blog by-Miconda or kb.asipto.com specially the one on integrating the Asterisk Realtime with kamailio, In that articular configuration file Kamailio Forwards/relays the Registration attempts to the Media-Server (FreeSwitch in your case).
>>
>> That will get your NAT thing handled atleast. Next thing is , if I'm right about your requirement, saving of Authenticated users in the Kamailio locations table and I'm not very sure about how to do this.
>>
>>
>> BR
>> Sammy
>>
>>
>> On Fri, Aug 17, 2012 at 1:59 AM, Spencer Thomason <spencer at 5ninesolutions.com> wrote:
>> Hello,
>> I'd like to use Kamailio in from of FreeSWITCH to handle NAT traversal.  Is there a way I can allow freeswitch to handle all auth but store the registration in usrloc as I need to send an options ping to the endpoints?
>>
>> My thought is something like this:
>>
>> natted endpoint -> kamailio -> freeswitch
>> If the response is 200OK, save the registration.
>>
>> Thanks,
>> Spencer
>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - http://asipto.com/u/katu
Kamailio Practical Workshop, Netherlands, Sep 10-12, 2012 - http://asipto.com/u/kpw