[SR-Users] Kamailio behind NAT

[John Smith]

Hello Klaus,

I had already two sockets bound each to two independent physical interfaces. I have added the force_send_socket at each rtpproxy 

It is necessary to use the cwie / cwei flags in the rtpproxy_manage call?

Currently audio does not flow back to the softphones, it gets lost at Kamailio.

Thank you for your help

> ----- Original Message -----
> From: Klaus Darilion
> Sent: 01/23/14 12:26 AM
> To: Kamailio (SER) - Users Mailing List
> Subject: Re: [SR-Users] Kamailio behind NAT
> 
> Am 21.01.2014 17:33, schrieb John Smith:
> > The next test has been to comment out the rtpproxy_manage at NATMANAGE function and to put it both at route[RELAY] and onreply(route) following your post in this list from January 2013:http://lists.sip-router.org/pipermail/sr-users/2013-January/076254.html.
> >
> > Now the media flows from Phone1 to Kamailio, from Kamailio to Asterisk and back, but it gets stuck at Kamailio. I cannot see it flow towards the public IP of the Phone2.
> >
> > The force_send_socket you used could be of any use here?
> That's what I recommend:
> 
> - use 2 sockets, one for communication with internal nodes, one for 
> external clients
> - in your Kamailio config check the direction of every message: i->e or 
> e->i (for requests and responses). Depending on the direction set the 
> proper IP when calling manage_rtpproxy and force the send socket:
> 
> regards
> Klaus
> 
> 
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