[Users] detecting if both caller and callee are behind NAT

[Bogdan-Andrei Iancu]

Hi,

in this case, you may see if the caller is behind the nat by using 
nat_uac_test() function; to see if the callee is register from behind a 
nat ,after doing lookup("location"), test the NAT flag of register (note 
that at registration time - save() - you have to set this flag -if 
nated- to be saved into location table).

regards,
bogdan


Jayesh Nambiar wrote:

> Hi Bogdan,
> the solution you gave was to detect if caller and callee are behind 
> *same NAT*, I just wanted to detect if caller and calee are behind 
> "NAT". Can you help me in defining condition for this.
>
> */Bogdan-Andrei Iancu <bogdan at voice-system.ro>/* wrote:
>
>     Hi,
>
>     this is a topic largely discussed in the past - a google on the
>     archive
>     will give you a lot of info.
>     shortly, you have to you avp_check() to compare the src_ip of the
>     INVITE
>     with the destination of it (dst_uri). See the avpops and the pseudo
>     variables docs.
>
>     regards,
>     bogdan
>
>     Jayesh Nambiar wrote:
>
>     > Hi all,
>     > I am trying to implement the following scenario:
>     > Whenever a NATed client calls to user at public IP or whenever a
>     user
>     > at public IP calls a NATed client, I dont want to use
>     mediaproxy. the
>     > fix_nated_sdp function does the job.
>     > But when both the caller and callee are behind nat, only then
>     > mediaproxy should be used. Can someone please help me in defining a
>     > condition which will return true if both the caller and callee
>     are nated.
>     > I tried a lot, but my conditions allow calls from NATed client to
>     > public IP clients to use mediaproxy which I dont want.
>     >
>     > Please help me in this regard, as I want to minimise the use of
>     > mediaproxy as much as possible.
>     >
>     > Thanks in advance,
>     > jayesh
>     >
>