[Users] STUN still mandatory ?

Bogdan-Andrei Iancu bogdan at voice-system.ro
Tue Nov 22 16:16:06 CET 2005

Hi Christophe,

if you use nathelper and rtpproxy on the server, you do not need STUN. 
You may use STUN in combination, just to reduce the cases that requires 
media relying....but again, you do not need it.

nathelper + rtpproxy may ensure a 100% nat traversal solution.


Christophe Irles wrote:

>Is the use of a STUN server or any other solution of this type (another
>daemon) still mandatory to solve NAT problem since I have set up correctly
>a media proxy and the netHelper module in my configuration file ? If it's
>not the case which type of configuration is out of the scope if my server is
>in this configuration ?
>For example for this network configuration, is a STUN server with UA
>compatible mandatory ?
>UA1 --- [openSER+MediaProxy+FW wiht NAT] --- [ Internet ] --- [ FW/NAT ] ---
>If it the case, which module(s) must be used with openSER and which STUN
>server (open source/free) can be used ?
>I already tested that this network configuration is working without any STUN
>UA1 --- [openSER+MediaProxy+FW wiht NAT] --- [Internet] ---  [FW] ---
>UA2(softphone on PC with direct access on internet)
>Users mailing list
>Users at openser.org

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