Hi George,
i use something like that (shameless stolen from other configuration files within request-route).
Thats for answering options to my internal kamailio. But Alex Balashov wrote an nice blog poste about NAT/OPTION Pings with kamailio: http://www.evaristesys.com/blog/server-side-nat-traversal-with-kamailio-the-...
### only initial requests (no To tag) if (is_method("OPTIONS")) { if (uri=~"sip:.*[@]+.*") { sl_send_reply("501", "Not Implemented"); } else { options_reply(); exit; } }
Cheers Karsten
Am Do., 4. Juli 2019 um 10:29 Uhr schrieb George Diamantopoulos < georgediam@gmail.com>:
Hello all,
I've been trying to handle OPTIONS statelessly, but proper handling fails for UACs behind NAT without ALG. I thought I'd overcome this by setting the $du pseudovariable, but apparently I'm missing something. The following does not work:
if ($Rp == "6050") { force_send_socket(udp:10.10.10.10:6050); } $du = "sip:" + $si + ":" + $sp; sl_send_reply("200","OK"); exit;I'm now realising that I put this in request_route() so force_send_socket() and $du have no use whatsoever, since the request is not forwarded anywhere. Is this the reason?
So the question is, how can I do the following things for a stateless reply: a) choose a sending socket for the reply and b) change the destination for the reply to something other than the URI in the first Via header.
Thanks!
BR, George _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users