[SR-Users] select outgoing interface

[Laurent Schweizer]

Hi Alex,

Thanks for the fast solution !

BR

Laurent


-----Message d'origine-----
De : sr-users [mailto:sr-users-bounces at lists.kamailio.org] De la part de Alex Balashov
Envoyé : lundi, 23 avril 2018 10:34
À : Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Objet : Re: [SR-Users] select outgoing interface

Hi Laurent,

You can either rely on Kamailio to do this using the mhomed=1 core config directive, more particularly described here:

https://www.kamailio.org/wiki/cookbooks/5.1.x/core#mhomed

Or you can turn this off, and manually steer outgoing requests by using the $fs PV. It is writable, e.g.

   listen=udp:x.x.x.x:5060
   listen=udp:y.y.y.y:5060

   route[RELAY] {
     ...

     $fs = 'udp:x.x.x.x:5060';

     if(!t_relay())
         sl_reply_error();
     
     exit;
   }

If you are moving traffic between interfaces and using Record-Route, be sure to turn this setting on:

https://kamailio.org/docs/modules/5.1.x/modules/rr.html#rr.p.enable_double_rr

-- Alex

On Mon, Apr 23, 2018 at 08:28:27AM +0000, Laurent Schweizer wrote:
> 

> Dear all,
> 
> I have a config with multiple interface( multiple IP in same subnet) and want to know how I can select the interface used to send a request (UDP).
> The best is the possibility to choose for each request the outgoing interface but if it's not possible I think I can also work with a solution where the outgoing interface is defined globally ?
> I need this because one provider request one IP for inbound call and one IP for outbound call .
> 
> 
> Thanks
> 
> Laurent
> 
> 
> 

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--
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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