Hi, Qasim!
There are two problems with your approach: the first one is that you are
using the engage_rtp_proxy() function in a bridging mode scenario. The
behavior of this is undefined, because the rtpproxy module cannot fully
determine your scenario (for example what's the direction of the media
flow in the reply). That's why you should use the rtpproxy_offer() and
rtpproxy_answer() functions to explicitly indicate the direction in
INVITE and replies.
The second problem is that you try to change the SDP twice: first by the
fix_nated_sdp() and then by engage_rtp_proxy(). These changes confuse
OpenSIPS, who tries to apply both of them. Try to use only one. My
suggestion is to rtpproxy_offer/answer() to fix the SDP, without calling
fix_nated_sdp().
Best regards,
Razvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com
On 05/09/2013 02:33 PM, Nick Khamis wrote:
It's not a bug, many of us here use RTP proxy in the same scenario.
Can you please provide a sip trace using ngrep
(http://wiki.freeswitch.org/wiki/Packet_Capture). Secondly, post the
relevant far end nat related scripting please.
Nick.
On 5/9/13, qasimak...@gmail.com <qasimak...@gmail.com> wrote:
Hi,
I am facing a problem when a client connects to opensips from NATed
network. I am using rtpproxy in bridging mode i.e. from publicnetwork to
private network. When i use fix_nated_sdp function from nathelper the local
IP address of the caller is replaced by its public IP but the problem
starts when i use engage_rtp_proxy instead of replacing server's public ip
to private it embeds private ip after the caller's publicIP like
X.X.X.XY.Y.Y.Y. I have tried fix_nated_ip with flag 3 and engage_rtp_proxy
with flag rie.
The question is am i using something wrong here or should it be counted as
a bug.
If you want some more clarification can draw a flow diagram also.
Regards,
Qasim
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