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

Alex Balashov abalashov at evaristesys.com
Fri Oct 16 02:28:28 CEST 2009


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.
>>


-- 
Alex Balashov - Principal
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671




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