[OpenSIPS-Users] strange INVITE transmission

[Daniel Zanutti]

Hi Kiwon

You need to handle NAT scenarios. Try putting this code on line 254, right
after "t_check_trans()":

if (nat_uac_test("7"))
{
  #nathelper
  if(is_method("REGISTER"))
    fix_nated_register();
  else
    fix_nated_contact();
  xlog("L_NOTICE", "Fix contact - M=$rm RURI=$ru F=$fu T=$tu IP=$si
ID=$ci\n");
}

You also need to enable nathelper module. The reason is that you need to
use the public IP/Port that sent data to opensips and ignore the Contact.


On Mon, Mar 28, 2022 at 5:20 AM 이기원 <chester at zigbang.com> wrote:

> Hi guys, I'm trying to introduce opensips into my company these days.
>
> I'm testing with many other phones. During the test, I had a very strange
> symptom.
>
> Please, take look at the picture below first. (Please find my screenshot
> from the link below)
> A. The most left one 14.52.252.236 is a phone (with hardware).
> B. 10.0.0.177 is proxy which is woking on cloud and its external IP is
> 58.79.209.75
> C. 175.223.34.31 is a zoiper softphone which is working on iphone
> D. 192.168.10.187 is the private IP address of A - a phone which is
> the most left one (14.52.252.236)
>
>
>
>
> https://drive.google.com/file/d/14zAREWLsluIa1TcU7tZJLSgff-iPqBDA/view?usp=sharing
>
> As you can see, C is calling A but opensips transmits the INVITE rqeuset
> to A's private IP address.
> INVITE request should be transmitted A's public IP address - In this
> scenario 14.52.252.236 (A)
>
> I also attach my opensips.cfg. What's wrong with me?
>
> Thank you
>
>
> Regards
> Kiwon
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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