[Kamailio-Users] RTPproxy pre-filling callee // media address

[Nick Lemberger]

I thought those flags/ip address settings was the change the SDP part of the SIP message.   I tried your suggestion anyway, but it didn't work.

What I'm really looking for is how to change what Kamailio is telling RTPProxy via the socket.

-Nick

>>> On 9/17/2009 at 8:31 AM, in message
<a950b2030909170631s24d5dab4pd989c7a2e5846315 at mail.gmail.com>, Laszlo
<laszlo at voipfreak.net> wrote:
> 2009/9/17 Nick Lemberger <Nick.Lemberger at lkfd.net>
> 
>> Sone background:
>> I'm trying to use Kamailio as a multi-homed proxy in front of a softswitch,
>> one NIC has a public IP, the other a private.  The softswitch is in the
>> private network and all SIP messaging goes through a 'virtual IP' on the
>> softswitch which allows for statefull failover between the softswitch CPUs.
>>  The media on the other had goes to an address stated in the SDP message.
>>
>> I don't have any problem with the SIP messaging, it flows as expected.
>>  Also, the RTP stream from my UAC to Kamailio/RTPproxy is working as
>> expected as well (I can record audio on this leg).
>>
>> There is a problem when RTP proxy sets up the leg on the internal side of
>> the network, I see the following in the logs:
>> Sep 17 07:56:36 voip.lakefield.net rtpproxy[20388]: [ID 408714 mail.info]
>> INFO:handle_command: pre-filling callee's address with
>> 192.168.249.40:33020
>>
>> I'm wondering what variable Kamailio gets the 192.168.249.40 address from -
>> this is the virtual IP for SIP messaging.  In the SDP body of those messages
>> from the softswitch, I see that it's supposed to use 192.168.249.8 as the
>> media IP (and I see that it's setting up the correct port information,
>> source port of 33020 in this instance, but with the wrong IP).  Where can I
>> tell Kamailio what IP should be telling RTPProxy?
>>
>> Thanks,
>> -Nick
>>  <http://lists.openser-project.org/cgi-bin/mailman/listinfo/users>
> 
> 
> you can try using force_rtp_proxy with IP and some flags( o and/or c)
> 
> http://www.kamailio.org/docs/modules/1.5.x/nathelper.html#id2468157 
> 
> -Laszlo