[OpenSIPS-Users] topology hiding in opensips

[Bogdan-Andrei Iancu]

Hi,

You can do TH with nathelper, BUT be sure to create the dialog + TH 
AFTER doing the fix_nated_contact().

Regards,

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

On 01/20/2017 12:42 PM, Alberto Gonzales wrote:
> We used instruction in the book, which states at the end of the 
> paragraph this :
>
> Topology hiding limitations
> You cannot easily combine topology hiding with NAT traversal because 
> both the
> processes mangle the Contact header. Topology hiding will not hide the 
> address and
> other information contained in other headers such as the display in 
> the From header.
> To change the From header, you can use the uac_replace_from() function.
>
> I think our problem comes from the fact that we are using nathelper 
> and also an rtpproxy in our script.
>
> can anyone provide help about activating topology hiding along with 
> nathelper ?
>
> thanks in advance.
>
>
> On Fri, Jan 20, 2017 at 10:14 AM, Alberto Gonzales 
> <albertosgonzale at gmail.com <mailto:albertosgonzale at gmail.com>> wrote:
>
>     I forgot to mention that doing this resulted in opensips crashing
>     after 20 minutes :)
>
>     On Fri, Jan 20, 2017 at 9:56 AM, Alberto Gonzales
>     <albertosgonzale at gmail.com <mailto:albertosgonzale at gmail.com>> wrote:
>
>         Hello grupo,
>
>         We have configured topology hiding in opensips 2.2 this way :
>
>         please confirm to us this is the only thing we need to do or
>         is there anything else that needs to be added.
>
>         route {
>         ....
>         ....
>                 if (has_totag()) {
>         # sequential request withing a dialog should
>         # take the path determined by record-routing
>         #### remplazar : if (loose_route()) {
>         if (topology_hiding_match()) {
>
>         ...
>         ...
>         *## esconder topologia antes de pasar la llamada*
>         topology_hiding("UC");
>                route(RELAY);
>         }
>
>
>         also what could be a quick test to see if this hiding is
>         working or not.
>
>         thanks in advance.
>
>         Alberto
>
>
>
>
>
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