[Serusers] rtpproxy

[Fábio Silvestri]

WoW

Klaus, from client with public IP I can reach nated client very well. My problem 
is only when client with nat ip try to reach another client with nat ip too.

The ser.cfg on Outbound proxy machine, has this configuration:

   route{
         log(1, "-------------------------------------------\n");
         log(1, "entering main loop (5060)\n");

         if (nat_uac_test("2")) {
                 log(1, "src address different than via header->NAT detected\n");
                 log(1, "force_rport and fix_nated_contact and setflag(5)\n");
                 #try NAT traversal, works only if the client is symmetrical
                 force_rport();
                 fix_nated_contact();
                 append_hf("P-hint: fixed NAT contact for request\r\n");
                 # flag 5 indicates that incoming request is from NATed client
                 setflag(5);
         };
         record_route();
         # loose-route processing
         if (loose_route()) {
                 t_relay();
                 break;
         };
        #inserted by klaus
        if (method=="INVITE") {
                 log(1, "INVITE\n");
                 record_route();
                 force_rtp_proxy();
                 /* set up reply processing */
                 t_on_reply("1");
         };
         # forward to current uri now; use stateful forwarding; that
         # works reliably even if we forward from TCP to UDP
         if (!t_relay()) {
                 sl_reply_error();
         };

   }

   #inserted by klaus
   # all incoming replies for t_onrepli-ed transactions enter here
   onreply_route[1] {
         log(1, "REPLY\n");
        if (status=~"[12][0-9][0-9]") {
                 force_rtp_proxy();
                 log(1, "PROXY\n");
         }
   }


Klaus Darilion wrote:
> rtpproxy also works fine within this setup.
> 
> Try if you can reach the natted client from an client with public IP. If 
> this is not possible, maybe the conteact in the location table is wrong. 
> Do you use fix_nated_contact(); and natping from the nathelper module to 
> keep the bindings in the NAT boxes alive?
> 
> Klaus
> 
> Fábio Silvestri wrote:
> 
>> Hi
>>
>> I'm still in trouble with using SER & rtpproxy.
>>
>> Everything works fine, just one only thing doesn't, if I'm registered 
>> with my ATA186 with nated ip (192.168.0.2) I can dial and talk with 
>> everybody on PSTN, but if I try to dial for another ATA186 (behind a 
>> nat 192.168.1.2) or maibe for the number configured on second port on 
>> ATA186, the call don't happen.
>>
>> I think this maibe a problem with rtpproxy, maibe they can't control 
>> two sessions with behind nat; because if the second ATA186 has valid 
>> IP, everything works fine.
>>
>>
> 

-- 
|o
|o É fácil falar de mim... Difícil é ser eu!
|o
|o Fabio Silvestri
|o fabio at informatec.com.br
|o ICQ: 1667351
|o