[Serusers] help with: can't read reply from a RTP proxy

[jeff kwong]

Hi everybody!
Im a newbie with ser and I have just joined the list. You see I want
to run a ser+nathelper+rtpproxy system in my linux box. My primary
task is to build a sip outbound proxy. As a start I used the
nathelper.cfg file in sip_router from the cvs repository. I also
downloaded and installed the latest ser and rtpproxy from cvs. I
always run rtpproxy first and I can verify its is running with ps.
However when I execute ser with nathelper.cfg I keep getting the
following message:

0(0) INFO: udp_init: SO_RCVBUF is initially 65535
0(0) INFO: udp_init: SO_RCVBUF is finally 131070
0(0) WARNING: using only the first listen address (no fork)
2(0) INFO: fifo process starting: 15323
1(15322) ERROR: send_rtpp_command: can't read reply from a RTP proxy
1(15322) send_rtpp_command(): proxy </var/run/rtpproxy.sock> does not
responding, disable it
1(15322) WARNING: rtpp_test: can't get version of the RTP proxy
1(15322) WARNING: rtpp_test: support for RTP proxy
</var/run/rtpproxy.sock>has been disabled temporarily
2(15323) ERROR: send_rtpp_command: can't read reply from a RTP proxy
2(15323) send_rtpp_command(): proxy </var/run/rtpproxy.sock> does not
responding, disable it
2(15323) WARNING: rtpp_test: can't get version of the RTP proxy
2(15323) WARNING: rtpp_test: support for RTP proxy
</var/run/rtpproxy.sock>has been disabled temporarily
2(15323) SER: open_uac_fifo: fifo server up at /tmp/ser_fifo...
2(15323) WARNING: no fifo_db_url given - fifo DB commands disabled!
0(15321) ERROR: send_rtpp_command: can't read reply from a RTP proxy
0(15321) send_rtpp_command(): proxy </var/run/rtpproxy.sock> does not
responding, disable it
0(15321) WARNING: rtpp_test: can't get version of the RTP proxy
0(15321) WARNING: rtpp_test: support for RTP proxy
</var/run/rtpproxy.sock>has been disabled temporarily

and thus I cannot make rtp calls. I know similar problems have been
posted before and the most frequent suggestion was to get the latest
versions of ser and rtpproxy like the one below.

1) Get ser from CVS, build, install
cvs -d:pserver:anonymous at cvs.berlios.de
<http://lists.iptel.org/mailman/listinfo/serusers>:/cvsroot/ser co
sip_router

2) Get rtpproxy from CVS, build, install
cvs -d:pserver:anonymous at cvs.berlios.de
<http://lists.iptel.org/mailman/listinfo/serusers>:/cvsroot/ser co
rtpproxy

3) Edit ser.cfg to add
modparam("nathelper","rtpproxy_sock", "/var/run/rtpproxy.sock")

I did as instucted but still the same results. What could I be
missing? To those who have successfully configured a similar setup,
can I ask what version of ser and rtpproxy are compatible?

Thanks in advance!

jeff