[Serusers] Ser and RTPProxy with Nathelper

David Simmons iptel at davidsimmons.co.uk
Tue Sep 28 17:11:05 CEST 2004


Hi,

Having tremendous trouble with SER + RTPProxy.

Running Fedora Core 1.

Have made RTPProxy using: make -f Makefile.gnu

Then run it fine by using:  ./rtpproxy

Netstat shows:

Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node PID/Program name    Path
unix  2      [ ACC ]     STREAM     LISTENING     11433  2443/rtpproxy       /var/run/rtpproxy.sock
unix  43     [ ]         DGRAM                    1822   1947/syslogd        /dev/log
unix  2      [ ]         DGRAM                    13503  2580/ser            
unix  2      [ ]         DGRAM                    13500  2616/ser            
unix  2      [ ]         DGRAM                    13497  2615/ser            
...... [cropped]

When I start SER (version 0.8.14 - latest) I get this in the messages file:

Sep 28 16:03:46 testsip2 /sbin/ser[2582]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2582]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2582]: WARNING: rtpp_test: support for RTP proxyhas been disabled temporarily
Sep 28 16:03:46 testsip2 /sbin/ser[2583]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2583]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2583]: WARNING: rtpp_test: support for RTP proxyhas been disabled temporarily
Sep 28 16:03:46 testsip2 /sbin/ser[2584]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2584]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2584]: WARNING: rtpp_test: support for RTP proxyhas been disabled temporarily
Sep 28 16:03:46 testsip2 /sbin/ser[2585]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2585]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2585]: WARNING: rtpp_test: support for RTP proxyhas been disabled temporarily
Sep 28 16:03:46 testsip2 /sbin/ser[2586]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2589]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2587]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2588]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2589]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2590]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2591]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2592]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2586]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2587]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2593]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2594]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2595]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2596]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2588]: WARNING: rtpp_test: can't get version of the RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2597]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2598]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2599]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2600]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2589]: WARNING: rtpp_test: support for RTP proxyhas been disabled temporarily
Sep 28 16:03:46 testsip2 /sbin/ser[2601]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2602]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2603]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2604]: ERROR: send_rtpp_command: can't read reply from a RTP proxy
Sep 28 16:03:46 testsip2 /sbin/ser[2590]: WARNING: rtpp_test: can't get version of the RTP proxy
...... [cropped]

My ser.cfg if it helps is:

#
# $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $
#
# simple quick-start config script
#

# ----------- global configuration parameters ------------------------

#debug=3         # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no        # (cmd line: -E)

/* Uncomment these lines to enter debugging mode
debug=7
fork=no
log_stderror=yes
*/

check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
#port=5060
#children=4
fifo="/tmp/ser_fifo"

#alias=davidsimmons.co.uk

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database
#loadmodule "//lib/ser/modules/mysql.so"

loadmodule "//lib/ser/modules/nathelper.so"
loadmodule "//lib/ser/modules/sl.so"
loadmodule "//lib/ser/modules/tm.so"
loadmodule "//lib/ser/modules/rr.so"
loadmodule "//lib/ser/modules/maxfwd.so"
loadmodule "//lib/ser/modules/usrloc.so"
loadmodule "//lib/ser/modules/registrar.so"

# Uncomment this if you want digest authentication
# mysql.so must be loaded !
#loadmodule "//lib/ser/modules/auth.so"
#loadmodule "//lib/ser/modules/auth_db.so"

# ----------------- setting module-specific parameters ---------------

# -- usrloc params --

modparam("usrloc", "db_mode",   0)

# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
#modparam("usrloc", "db_mode", 2)

# -- auth params --
# Uncomment if you are using auth module
#
#modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config),
# uncomment also the following parameter)
#
#modparam("auth_db", "password_column", "password")

# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)

# -------------------------  request routing logic -------------------

# main routing logic

route{

        # initial sanity checks -- messages with
        # max_forwards==0, or excessively long requests
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if ( msg:len > max_len ) {
                sl_send_reply("513", "Message too big");
                break;
        };

        # we record-route all messages -- to make sure that
        # subsequent messages will go through our proxy; that's
        # particularly good if upstream and downstream entities
        # use different transport protocol
        record_route();
        # loose-route processing
        if (loose_route()) {
                t_relay();
                break;
        };
        # if the request is for other domain use UsrLoc
        # (in case, it does not work, use the following command
        # with proper names and addresses in it)
        if (uri==myself) {

                if (method=="REGISTER") {

# Uncomment this if you want to use digest authentication
#                       if (!www_authorize("iptel.org", "subscriber")) {
#                               www_challenge("iptel.org", "0");
#                               break;
#                       };

                        save("location");
                        break;
                };

                # native SIP destinations are handled using our USRLOC DB
                if (!lookup("location")) {
                        sl_send_reply("404", "Not Found");
                        break;
                };
        };

        # inserted by klaus
        if (method=="INVITE") {
                record_route();
                force_rtp_proxy();
                /* set up reply processing */
                t_on_reply("1");
        };


        # forward to current uri now; use stateful forwarding; that
        # works reliably even if we forward from TCP to UDP
        if (!t_relay()) {
                sl_reply_error();
        };

}

#inserted by klaus
# all incoming replies for t_onrepli-ed transactions enter here
onreply_route[1] {
        if (status=~"[12][0-9][0-9]")
        force_rtp_proxy();
}


Hope you can help as this is driving me mad now :(

Best Regards,

Dave




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