[SR-Users] Kamailio behind NAT

John Smith jsmith.15 at mail.com
Thu Jan 30 10:18:14 CET 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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