17 May
2018
17 May
'18
9:23 a.m.
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 Mierla
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