[OpenSIPS-Users] opensips nat quesiton

Bogdan-Andrei Iancu bogdan at opensips.org
Tue Jan 9 09:41:34 EST 2018

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:


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
OpenSIPS Summit 2018

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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> Users at lists.opensips.org
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