[OpenSIPS-Users] NAT_Traversal not removing maddr from contact

Bogdan-Andrei Iancu bogdan at opensips.org
Fri May 23 10:53:28 CEST 2014


Hello Craig,

As said, this is just side comment, not a try to cover the problem - 
IMHO you are right (in regards to maddr handling in nat_traversal) and 
that should be fixed.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 23.05.2014 04:38, Craig Guy wrote:
> Thanks Bogdan,
>
> I'd seen in an older mailing list message that nat_traversal went with 
> mediaproxy and nathelper went with rtpproxy. I'll switch back to 
> nathelper and troubleshooting my mediaproxy nat issue.
>
> Craig
>
>
> On 23 May 2014 00:25, Bogdan-Andrei Iancu <bogdan at opensips.org 
> <mailto:bogdan at opensips.org>> wrote:
>
>     Hello Craig,
>
>     Not trying to deviate from the actual bug, but for both cases
>     (rtpproxy and mediaproxy) the signaling modules are completely
>     different from the modules talking to the external media relays.
>     So, you can use the mediaproxy relay (via the mediaproxy module)
>     in combination with the nathelper module for the contact fixing.
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>     On 22.05.2014 12:44, Craig Guy wrote:
>>     Hi,
>>
>>     I was using nathelper with fix_nated_contact and have changed
>>     over to using nat_traversal and fix_contact as I am having some
>>     other issues with mediaproxy but found that calls are failing
>>     with the apparent difference being that nathelper removes maddr
>>     from the initial INVITE Contact whilst nat_traversal leaves it
>>     intact.
>>
>>     This is causing opensips to route the received PRACK to the maddr
>>     private IP in the contact header and the call to fail.
>>
>>     Is this correct operation for the nat_traversal module and is
>>     there another way to remove the maddr from the contact?
>>
>>     This is with opensips 1.10
>>
>>     Craig
>>
>>
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>
>

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