[SR-Users] Kamailio with RTPoxy

[Klaus Darilion]

8 - SDP is searched for occurrence of RFC1918 addresses

So I gues you call nat_uac_test("8") for a request which does not have a
body at all. You could use has_body from textops module to extend the
check, e.g:

if (has_body("application/sdp") && nat_uac_test("8")) {
  ...


regards
klaus



Am 28.04.2011 18:25, schrieb alex pappas:
> Dear all,
> 
> I see in my logs that when the call enters the route :
> 
> # Caller NAT detection route
> route[NAT] {
> #!ifdef WITH_NAT
>         xlog("alx --- ROUTE NAT , we have nat ---");
>         force_rport();
>        *if (nat_uac_test("8")) {*
>                 if (method=="REGISTER") {
>                         fix_nated_register();
>                 } else {
>                         fix_nated_contact();
>                 }
>                 setflag(FLT_NATS);
>                 xlog("alx --- ROUTE NAT , set flag FLT_NATS ---");
>         }
> #!endif
>         return;
> }
> 
> I get the following error:
> 
> nathelper [nhelpr_funcs.c:195]: *message body has length zero*
> nathelper [nathelper.c:1184]: *cannot extract body from msg!*
> 
> From traces i see that only in the SDP I have an IP which is not public
> but even with that I cannot engage the RTPPROXY.
> 
> My Kamailio version is 3.1.3 and the config file is plain , from
> installation.
> 
> Any ideas?
> 
> Thank you Alex
> 
> 
> 
> 
> 
> 
> On Sun, Apr 17, 2011 at 2:20 PM, alex pappas <rebel.pappas at gmail.com
> <mailto:rebel.pappas at gmail.com>> wrote:
> 
>     Dear Alex,
> 
>     The configuration is the default with WITH_NAT defined.
>     I have some extra logs (xlog("RTPPROXY started..")) enabled in the
>     RTPPROXY route in order to understand if it is engaged or not.
> 
>     When I make calls behind NAT the RTPPROXY is engaged but I don't see
>     any RTP in traces.
> 
>     Do you have any idea on how can I keep the RTP?
> 
>     Thanks
>     Alex Pappas
> 
> 
> 
> 
>     On Fri, Apr 15, 2011 at 6:43 PM, Alex Balashov
>     <abalashov at evaristesys.com <mailto:abalashov at evaristesys.com>> wrote:
> 
>         On 04/15/2011 09:58 AM, alex pappas wrote:
> 
>             I have a Kamailio with  RTPoxy configured. The purpose is to
>             pass the
>             RTP from this server.
>             When I make calls behind NAT the RTProxy seems to be engaged
>             but in
>             traces I don't see  any RTP.
> 
>             Is there anything wrong with the idea or I'm missing
>             something in the
>             configuration ?
> 
> 
>         That would be difficult to know without seeing your configuration.
> 
>         -- 
>         Alex Balashov - Principal
>         Evariste Systems LLC
>         260 Peachtree Street NW
>         Suite 2200
>         Atlanta, GA 30303
>         Tel: +1-678-954-0670
>         Fax: +1-404-961-1892
>         Web: http://www.evaristesys.com/
> 
>         _______________________________________________
>         SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
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> 
> 
> 
> 
> 
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