[OpenSIPS-Users] opensips nat quesiton

[liuyuanting1209]

Hi Bogdan,


I encountered another problem. 


client send register to opensips then opensips send to server 1.   server1 send 200OK back to opensips and then client


server2 send MESSAGE to opensips. With tcpdump I can see the opensips server has received the MESSAGE. But opensips process failed to received it.
I add log in net_udp.c  handle_io() , I got log for register and 200 ok. But there is no log for the MESSAGE. 


any idea for such error? 


Thanks.
Sean 







At 2018-01-09 22:41:34, "Bogdan-Andrei Iancu" <bogdan at opensips.org> wrote:
HI Sean,

If I understand correctly your setup, you should use into PATH support on opensips (RFC 3327). Also take a look at the path module in OpenSIPS:
    http://www.opensips.org/html/docs/modules/2.3.x/path.html

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam
On 01/09/2018 03:27 AM, liuyuanting1209 wrote:

Hi, 


I am new on opensips. could you please help to solve my questions. Thanks a lot.


My environment:
client is behind NAT(any kinds of NAT), 
opensips server has public ip,  register server is different with invite server. 
sip server only has private ip but opensips can reach it directly. 
media server has public ip.


So I want opensips solve NAT problem. 
1 if I use nathelper module, after contact fix, the server can only get opensips's private ip and port
2 if I use nat_traversal module, after contact fix, the sip server can only get the ip watched from opensips. 


I want to let sip server get the ip watched from sip server, so sip server only needs to store one ip. is there such way for opensips ?




Thanks a lot.
Sean Liu




 





 




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