Re: [SR-Users] Kamailio behind NAT - sr-users

30 Jan 2014

Hello Fred,

calls are being bridged across two interfaces: one natted from the outside with one public
IP and one directly connected to the Asterisk.

...
  ----- Original Message -----
 From: Fred Posner
 Sent: 01/24/14 06:55 AM
 To: Kamailio (SER) - Users Mailing List
 Subject: Re: [SR-Users] Kamailio behind NAT

 On 01/24/2014 09:51 AM, Andrew Pogrebennyk wrote:
  On 01/23/2014 05:12 PM, Klaus Darilion wrote:
   It is
necessary to use the cwie / cwei flags in the rtpproxy_manage call? 
 If rtpproxy uses only a single listen-IP, then these flags are not
 needed. Only if you operate rtpproxy in bridge mode, then you need these
 flags. Bridge mode is necessary if you do not have IP routing between
 the internal network and the "virtual external" network, or if you want
 to bridge between IPv4 and IPv6. 
 John,
 This function can be used to check the direction of every message:
 http://kamailio.org/docs/modules/4.0.x/modules/rr.html#idp223296
 You might also need to append the record-route parameters to remember
 the flags you have passed to the manage_rtpproxy() initially.
 Based on the direction of the request and initial flags you can
 determine what flags to use when calling manage_rtpproxy() for a given
 in-dialog requests and reply.

 Hope this helps.
 Andrew

 Are the calls being bridged across two interfaces or is the Kamailio 
 just natted? (or is it both?)

 Fred Posner
 The Palner Group, Inc.
 503-914-0999 (direct)
 954-472-2896 (fax)

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