[SR-Users] Kamailio Cluster

[Jurijs Ivolga]

Hi,

If you have following:

UA A ====> Kamilio 1

UA B ====> Kamailio 2

With path you just make sure that all calls are routed to that server where
UA initially registered.

So if UA A is calling UA B, call will go in such way: UA A=> Kamilio 1 =>
Kamailio 2 => UA B.

I hope I answered your question.

With kind regards,

2016-02-03 12:18 GMT+02:00 Gholamreza Sabery <gr.sabery at gmail.com>:

> Actually I think something is not clear here. Suppose I want to use two
> Kamailio servers such that a client which is registered on server A is able
> to call another client registered on server B. In this case I use DB_MODE
> 3. Both servers have access to location database but sockets are non-local
> and cleints are behind symmetric NATs.Now  only the server on which the
> client is registered and sent it's request to is able to respond(because of
> symmetric NAT). Is it possible to implement this scenario using Path header?
>
> Regards
>
> On Wed, Feb 3, 2016 at 12:55 PM, Daniel Tryba <d.tryba at pocos.nl> wrote:
>
>> On Mon, Feb 01, 2016 at 09:17:41AM +0100, Federico Cabiddu wrote:
>> > a solution in this case could be making usage of Path header (
>> > https://tools.ietf.org/html/rfc3327).
>> > You have to load the path module
>> > http://www.kamailio.org/docs/modules/devel/modules/path.html
>> > and enabled its usage in registrar module
>>
>> Be warned that any stateful firewall or NATed client will not accept the
>> messages from any other sipserver to that client. My solution was to use
>> edge/loadbalancer proxies which add the Path header using
>> add_path_received to store both the edge/loadbalancer ip and client
>> source before passing the request to the backends (using dispatcher).
>>
>> Any backend will send messages based on the Path headers to the
>> edge/loadbalancer and that will pass it to the client to appease
>> statefull firewalls.
>>
>>
>>
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>>
>
>
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>


-- 
Jurijs
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