Hi Adam,
Thanks, the fog is starting to lift now... :-)
I'll make some changes and come back with results shortly.
Cheers,
John
Adam Twardowski wrote:
John,
The o= is the Origin IP, which doesn't really matter, the c= is the
connection IP, which is the important one. You probably want to use
force_rtp_proxy() to rewrite the sdp and make it go through the
rtpproxy, and in your asterisk SIP peer, you can either set the peer
IP to 4.5.6.7 and have your proxy re-write the RURI to 1.2.3.4 and
relay it along, or you could set outboundproxy=4.5.6.7 in sip.conf on
your sip peer and just have opensips relay it. You may also need to
setup an on-reply route to capture 180/183 messages with SDP and
rewrite the IP's in there too.
--Adam
On Fri, Aug 27, 2010 at 10:45 PM, TeleCube - John
<j...@telecube.com.au <mailto:j...@telecube.com.au>> wrote:
Hi Max,
Thanks for your reply.
I have rtpproxy running and I think it's all configured ok.
I can use fix_nated_sdp() with flags and see the changes in the
sdp lines in the packets.
What I am struggling with is just how to go about telling the
asterisk server and the outbound route that all traffic is to run
through my proxy
I'm not sure what the purpose of the o= and c= lines are and at
which stage in the packet flow I need to re-write which lines.
If anyone can offer any pointers that will be awesome.
Kind regards,
John
Max Mühlbronner wrote:
Hello,
Yes, the opensips will rewrite the sdp like you said, so it will contain
the ip of the rtpproxy (or mediaproxy). It can be used to proxy the rtp
traffic to a specific destination.
But the rtpproxy does not necessarily have to be the same machine as
your Opensips. The rtpproxy is a different tool which will be enabled by
setting the relevant modparam settings and also calling the rtpproxy in
your routing-script.
http://voiprookie.blogspot.com/2009/04/rtpproxy-12x-installation.html
maybe there are also other, better tutorials but this link seems to be a
good start for setting up rtpproxy with opensips.
BR
Max M.
Am 27.08.2010 15:36, schrieb TeleCube - John:
Hi,
I have a setup as follows:
1.2.3.4 - Outbound Route
4.5.6.7 - Opensips proxy
4.5.6.8 - Asterisk server
The outbound route will only allow any traffic, signaling and media, via
the 4.5.6.7 IP address. It cannot currently accept media from a
different ip than the signaling.
Currently the astx server sends media direct to the outbound route.
Signaling is fine but I need to force the media stream from the asterisk
server through the opensips proxy.
Am I correct in expecting that nathelper/rtpproxy can do this?
Is it simply a matter of re-writing the sdp detail that will tell the
asterisk server to route media through the opensips ip address?
Any examples will be greatly appreciated.
Thanks,
John
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