Doing a tcp dump on the ser server to look for the replies, I get: 

14:40:02.390249 media.server.com.22222 > ser.server.com.56137: udp 17 (DF)
14:40:02.395230 media.server.com.22222 > ser.server.com.56138: udp 17 (DF)
14:40:02.461615 media.server.com.22222 > ser.server.com.56139: udp 17 (DF)
14:40:02.497716 media.server.com.22222 > ser.server.com.56140: udp 17 (DF)
14:40:02.499642 media.server.com.22222 > ser.server.com.56141: udp 17 (DF)
14:40:02.509856 media.server.com.22222 > ser.server.com.56142: udp 17 (DF)
14:40:02.520871 media.server.com.22222 > ser.server.com.56143: udp 17 (DF)
14:40:02.531844 media.server.com.22222 > ser.server.com.56144: udp 17 (DF)
14:40:02.542842 media.server.com.22222 > ser.server.com.56145: udp 17 (DF)
14:40:02.553835 media.server.com.22222 > ser.server.com.56146: udp 17 (DF)
14:40:02.564832 media.server.com.22222 > ser.server.com.56147: udp 17 (DF)
14:40:02.575829 media.server.com.22222 > ser.server.com.56148: udp 17 (DF)
14:40:02.586823 media.server.com.22222 > ser.server.com.56149: udp 17 (DF)
14:40:02.597823 media.server.com.22222 > ser.server.com.56150: udp 17 (DF)
14:40:02.608824 media.server.com.22222 > ser.server.com.56151: udp 17 (DF)
14:40:02.619815 media.server.com.22222 > ser.server.com.56152: udp 17 (DF)
14:40:02.630812 media.server.com.22222 > ser.server.com.56153: udp 17 (DF)
14:40:02.641807 media.server.com.22222 > ser.server.com.56154: udp 17 (DF)
14:40:02.652802 media.server.com.22222 > ser.server.com.56155: udp 17 (DF)

etc, etc. 

Does that mean anything to anyone? 

(incidentally, I'm running version 0.9.6 of SER and rtpproxy responds with:

Basic version: 20040107
Extension 20050322: Support for multiple RTP streams and MOH )

N.

On Wed, 30 Aug 2006 20:31:29 +0200, Greger Viken Teigre wrote
  

Good description of your problem. Made me answer directly from my 
nokia e70 :-) There was a protocol change in rtpproxy and you may 
have a mismatch there. AFAIK, nathelper in cvs head uses the new 
protocol, but 0.9.x does not. Your rtpproxy announces the old 
version, but the error message looks as if the version never reaches 
ser. Do a tcpdump src port 22222 to catch the answer on your ser server.
g-)

------- Original message -------
From: sip <sip@arcdiv.com>
Sent: 30.8.'06,  14:20

    

So... I followed the instructions on OnSip on how to set up RTPProxy. 

However, I made a modification because I'm running it on a different
machine... changing the 

modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpptoxy.sock")

to 

modparam("nathelper", "rtpproxy_sock", "udp:XX.XX.XX.XX:22222")

I've run RTPproxy on the remote machine as such:

./rtpproxy -f -l XX.XX.XX.XX -s udp:* 22222

And it's running. 

I start the ser server, and I see a slew of commands hit the RTPProxy console:

received command "26742_0 V"
sending reply "26742_0 20040107
"
received command "26745_0 V"
sending reply "26745_0 20040107
"
received command "26791_0 V"
sending reply "26791_0 20040107
"
received command "26797_0 V"
sending reply "26797_0 20040107
"
received command "26748_0 V"
sending reply "26748_0 20040107
"
received command "26750_0 V"
sending reply "26750_0 20040107
"
received command "26751_0 V"
sending reply "26751_0 20040107
"
received command "26752_0 V"
sending reply "26752_0 20040107
"
received command "26784_0 V"
sending reply "26784_0 20040107

etc, etc ad infinitum

After a moment, the SER console spits back: 

ug 30 14:07:48 death ser[26742]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:48 death ser[26742]: WARNING: rtpp_test: can't get version of the
RTP proxy 
Aug 30 14:07:48 death ser[26742]: WARNING: rtpp_test: support for RTP proxy
has been disabled temporarily 
Aug 30 14:07:48 death ser[26745]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:48 death ser[26745]: WARNING: rtpp_test: can't get version of the
RTP proxy 
Aug 30 14:07:48 death ser[26745]: WARNING: rtpp_test: support for RTP proxy
has been disabled temporarily 
Aug 30 14:07:49 death ser[26791]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26791]: WARNING: rtpp_test: can't get version of the
RTP proxy 
Aug 30 14:07:49 death ser[26791]: WARNING: rtpp_test: support for RTP proxy
has been disabled temporarily 
Aug 30 14:07:49 death ser[26797]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26797]: WARNING: rtpp_test: can't get version of the
RTP proxy 
Aug 30 14:07:49 death ser[26797]: WARNING: rtpp_test: support for RTP proxy
has been disabled temporarily 
Aug 30 14:07:49 death ser[26748]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26748]: WARNING: rtpp_test: can't get version of the
RTP proxy 
Aug 30 14:07:49 death ser[26748]: WARNING: rtpp_test: support for RTP proxy
has been disabled temporarily 
Aug 30 14:07:49 death ser[26750]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26751]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26752]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26784]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26789]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 
Aug 30 14:07:49 death ser[26792]: ERROR: send_rtpp_command: timeout waiting
reply from a RTP proxy 

etc, etc, ad infinitum

I've done a search on this on Google and found a couple of people with the
same questions and NO people responding with answers. 

Any ideas what's going on? 

N.
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