[Kamailio-Users] Having problems using RTPProxy to bridge internal/external networks

[Alex Balashov]

That's pretty much what I did.

All I had to do was use force_rtp_proxy().  Everything was broken when  
I tried to use rtpproxy_offer/answer, though the code suggests they  
are just wrappers around force_rtp_proxy().

--
Sent from mobile device

On Oct 16, 2009, at 10:23 AM, Örn Arnarson <orn at arnarson.net> wrote:

> I got it working by using Klaus's flags;
>
>    if ($ruri =~ "10\.252\.*") {
>        force_send_socket("10.252.1.8");
>        force_rtp_proxy("ocfaie");
>
> The SDP is correctly re-written and rtpproxy bridges the stream.
>
> Regards,
> Örn
>
> 2009/10/16 Örn Arnarson <orn at arnarson.net>:
>> Yes, I'd be very interested to see that too :-)
>>
>> Regards,
>> Örn
>>
>> On Thu, Oct 15, 2009 at 8:41 PM, Klaus Darilion
>> <klaus.mailinglists at pernau.at> wrote:
>>> Hi Alex!
>>>
>>> Could you finally solve the issue? If yes, it would be cool if you  
>>> could
>>> post the result (rtpproxy command line and the force_rtpproxy  
>>> commands).
>>>
>>> thanks
>>> klaus
>>>
>>> Alex Balashov wrote:
>>>>
>>>> No firewall rules anywhere.  That's the first thing I checked.
>>>>
>>>> Besides, I did the packet capture right on the rtpproxy server;   
>>>> even if
>>>> firewall rules were preventing media from getting out, I would  
>>>> still see
>>>> attempts to send it onto the wire.
>>>>
>>>> Klaus Darilion wrote:
>>>>
>>>>> maybe an iptables problem on the rtpproxy server?
>>>>>
>>>>> Alex Balashov wrote:
>>>>>>
>>>>>> Daniel-Constantin Mierla wrote:
>>>>>>
>>>>>>> IIRC, I use:
>>>>>>>
>>>>>>> if(dst_ip==private_ip)
>>>>>>>      force_rtp_proxy("ocfaei");
>>>>>>> else
>>>>>>>      force_rtp_proxy("ocfaie");
>>>>>>>
>>>>>>> rtpproxy started with: -l external_ip/private_ip
>>>>>>>
>>>>>>> Probably is rtpproxy 1.1 -- cannot check right now.
>>>>>>
>>>>>> I just tried this and it works, from the point of view of SDP.   
>>>>>> We were
>>>>>> already able to obtain this result.
>>>>>>
>>>>>> The problem is that the actual rtpproxy does not seem to  
>>>>>> forward the
>>>>>> packets that come into one interface toward the other, so no  
>>>>>> media is
>>>>>> exchanged.
>>>>>>
>>>>
>>>>
>>>
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>>