[sr-dev] Set arbitrary destination port for outgoing request/reply

[Tsvetomir Dimitrov]

Thank you! This sounds like exactly what I need.

Best regards,
Tsvetomir

On Thu, May 17, 2018 at 9:23 AM Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
>
> for sip request, just set the $du to the address you want to send, I guess
> the port you know, doesn't really has to be randomly generated by Kamailio
> -- however, if yes, then there is a variable that should help, iirc it is
> named $RANDOM, but you can check the pv cookbook in the wiki or the
> cfgutils module.
>
> For sip replies, try also with $du, although it might not work and then
> something needs to be coded in the core to make it work -- I expect to be
> something trivial to check if $du is set for the reply and use that for
> sending out instead of via address.
>
> There is likely even now a chance to work with onsend_route enabled for
> replies (see global parameters in the core cookbook) where you can use
> send_data() function with the first parameter being the address where you
> want to send it and the second $snd(buf), then do drop() not to let
> response be sent again by core.
>
> Cheers,
> Daniel
>
> On 10.05.18 21:08, Tsvetomir Dimitrov wrote:
>
> Hello,
>
> Is it possible to modify the destination UDP port number for outgoing SIP
> request/response?
>
> I am working on a sec-agree extension implementation for Kamailio and
> after negotiating the IPSec tunnel parameters I need to redirect the
> messages to the new port number. I checked the code and looks like the
> destination port is determined mainly by the VIA headers, which doesn't
> work for me. Is it possible to achieve this without messing up with the
> core?
>
> Best regards,
> Tsvetomir
>
>
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>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com
>
>
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