[OpenSER-Users] OpenSer and NAT

[Iñaki Baz Castillo]

On Monday 11 February 2008 13:04:35 Ali Jawad wrote:
> Dear Iñaki
>
> Thanks for your quick reply, you have stated that STUN is transparent and
> once applied OpenSER modules wont detect NAT and therefore wont act upon
> the packets. You also said that both solution can work together. 

> Let's 
> suppose that STUN did not help a NAT client..

What does mean "STUN did not help a NAT client"?
STUN doesn't work behind a NAT symetric router. In any other NAT type router 
it works.
Anyway, the clients performs a NAT test and if they discover that they are 
behind a symmetric NAT router they warn the user about they cannot use STUN.


> in that case the proxy module 
> of openser would kick in and start acting right ?

Rtp/MediaProxy are solutions that force the audio going through a server with 
public IP. Also nathelper module makes fix the private IP's in the original 
message ("Contact", "Via"...).


-- 
Iñaki Baz Castillo
ibc at in.ilimit.es