[OpenSIPS-Users] Problem with OpenSIPS 1.7, NAT and RTPProxy

Ali Pey alipey at gmail.com
Tue Aug 7 16:11:29 CEST 2012


Hi,

It's your nat traversal. Capture your call and examine the media ip
addresses in the SDP of all invites. That should give you a clue what's
wrong.

Regards,
Ali Pey

On Mon, Aug 6, 2012 at 1:47 PM, siponcloud user <kash906 at gmail.com> wrote:

> Thanks, that really helped.
>
> I am still having problem with the following: when user x calls user y,
> audio is one-way, and when audio y calls x, audio is two-way. Why is it so?
> What could be the possible reasons?
>
> Also would like to add that -- iptables has to be appropriate rules on
> opensips to get clients connecting to it or even rtpproxy connecting to it.
>
> --
> sip user.
>
>
> On Fri, Aug 3, 2012 at 4:49 AM, SamyGo <govoiper at gmail.com> wrote:
>
>> Hi,
>>
>> You may not want to tell your rtpproxy module to use DB as well as a
>> socket connection at the same time: I wonder if it will work this way.
>>
>> modparam("rtpproxy", "rtpproxy_sock", "udp:localhost:9999")
>>> modparam("rtpproxy", "nortpproxy_str", "a=sdpmangled:yes\r\n")
>>> modparam("rtpproxy", "db_url",
>>> "mysql://opensips:opensipsrw@localhost/opensips")
>>> #modparam("rtpproxy", "db_table", "nh_rtpp")
>>> modparam("rtpproxy", "rtpp_socket_col", "rtpproxy_sock")
>>
>>
>> Comment out the red lines as well.
>> Once commented restart opensips and verify that your RTPproxy is indeed
>> listening on the port 9999
>> *
>> *
>> *#netstat -pln | grep 9999*
>>
>> If you get an output then its fine, next you should make a call and see
>> if the error changes or not.
>>
>> Regards,
>> Sammy.
>>
>>
>> On Fri, Aug 3, 2012 at 2:38 AM, siponcloud user <kash906 at gmail.com>wrote:
>>
>>> Opensips is a great product, but I have been having problem in
>>> configuring
>>> the nat traversal + rtpproxy with opensips and have spent about a week on
>>> this.  I am a novice in this... when opensips runs with the following
>>> opensips.cfg relevant portions -- it raises the following rtpproxy
>>> problem:
>>>
>>> "ERROR:rtpproxy:select_rtpp_node: script error -no valid set selected"
>>> "ERROR:rtpproxy:force_rtp_proxy: no available proxies"
>>>
>>> #-------- nat_traversal params -----
>>> modparam("nat_traversal", "keepalive_interval", 30)
>>> modparam("nat_traversal", "keepalive_method", "OPTIONS")
>>> modparam("nat_traversal", "keepalive_from", "sip:[hidden email]")
>>> modparam("nat_traversal", "keepalive_state_file",
>>> "/var/run/opensips/keepalive_state")
>>>
>>> #ak# --- rtpproxy -----
>>> # single rtproxy with specific weight
>>> modparam("rtpproxy", "rtpproxy_sock", "udp:localhost:9999")
>>> modparam("rtpproxy", "nortpproxy_str", "a=sdpmangled:yes\r\n")
>>> modparam("rtpproxy", "db_url",
>>> "mysql://opensips:opensipsrw@localhost/opensips")
>>> #modparam("rtpproxy", "db_table", "nh_rtpp")
>>> modparam("rtpproxy", "rtpp_socket_col", "rtpproxy_sock")
>>>
>>>
>>> ####### Routing Logic ########
>>>
>>>
>>> # main request routing logic
>>>
>>> route{
>>>         ####nat_traversal info
>>>         force_rport();
>>>         if (client_nat_test("7")) {
>>>                 fix_contact();
>>>                 setflag(5);
>>>         }
>>>
>>>         if ((method=="REGISTER" || method=="SUBSCRIBE" ||
>>>                 (method=="INVITE" && !has_totag())) &&
>>> client_nat_test("7"))
>>>         {
>>>                 nat_keepalive();
>>>         }
>>>         ####nat_traversal info ends
>>>
>>>         if (!mf_process_maxfwd_header("10")) {
>>>                 sl_send_reply("483","Too Many Hops");
>>>                 exit;
>>>         }
>>>
>>>         ##ak#
>>>         if ((is_method("INVITE")) && has_totag()) {
>>> #(has_body("application/sdp"))) {
>>>                 engage_rtp_proxy();
>>>         }
>>>
>>>         if (has_totag()) {
>>>                 # sequential request withing a dialog should
>>>                 # take the path determined by record-routing
>>>                 if (loose_route()) {
>>>                         if (is_method("BYE")) {
>>>                                 setflag(1); # do accounting ...
>>>                                 setflag(3); # ... even if the transaction
>>> fails
>>>                         } else if (is_method("INVITE")) {
>>>                                 # even if in most of the cases is
>>> useless,
>>> do RR for
>>>                                 # re-INVITEs alos, as some buggy clients
>>> do
>>> change route set
>>>                                 # during the dialog.
>>>                                 record_route();
>>>                         }
>>>                         # route it out to whatever destination was set by
>>> loose_route()
>>>                         # in $du (destination URI).
>>>                         route(1);
>>>                 } else {
>>>                         /* uncomment the following lines if you want to
>>> enable presence */
>>> ##if (is_method("SUBSCRIBE") && $rd == "your.server.ip.address") {
>>>                         ##      # in-dialog subscribe requests
>>>                         ##      route(2);
>>>                         ##      exit;
>>>                         ##}
>>>                         if ( is_method("ACK") ) {
>>>                                 if ( t_check_trans() ) {
>>>                                         # non loose-route, but stateful
>>> ACK;
>>> must be an ACK after
>>>                                         # a 487 or e.g. 404 from upstream
>>> server
>>>                                         t_relay();
>>>                                         exit;
>>>                                 } else {
>>>                                         # ACK without matching
>>> transaction
>>> ->
>>>                                         # ignore and discard
>>>                                         exit;
>>>                                 }
>>>                         }
>>>                         sl_send_reply("404","Not here");
>>>                 }
>>>                 exit;
>>>         }
>>>
>>>         #initial requests
>>>
>>>         # CANCEL processing
>>>         if (is_method("CANCEL"))
>>>         {
>>>                 if (t_check_trans())
>>>                         t_relay();
>>>                 #unforce_rtpproxy();
>>>                 exit;
>>>         }
>>>
>>>         t_check_trans();
>>>
>>> # preloaded route checking
>>>         if (loose_route()) {
>>>                 xlog("L_ERR",
>>>                 "Attempt to route with preloaded Route's
>>> [$fu/$tu/$ru/$ci]");
>>>                 if (!is_method("ACK"))
>>>                         sl_send_reply("403","Preload Route denied");
>>>                 exit;
>>>         }
>>>
>>>         # record routing
>>>         if (!is_method("REGISTER|MESSAGE"))
>>>                 record_route();
>>>
>>>         # account only INVITEs
>>>         if (is_method("INVITE")) {
>>>                 setflag(1); # do accounting
>>>         }
>>>         if (!uri==myself)
>>>         ## replace with following line if multi-domain support is used
>>>         ##if (!is_uri_host_local())
>>>         {
>>>                 append_hf("P-hint: outbound\r\n");
>>>                 # if you have some interdomain connections via TLS
>>>                 ##if($rd=="tls_domain1.net") {
>>>                 ##      t_relay("tls:domain1.net");
>>>                 ##      exit;
>>>                 ##} else if($rd=="tls_domain2.net") {
>>>                 ##      t_relay("tls:domain2.net");
>>>                 ##      exit;
>>>                 ##}
>>>                 route(1);
>>>         }
>>>
>>>         # requests for my domain
>>>
>>>         ## uncomment this if you want to enable presence server
>>>         ##   and comment the next 'if' block
>>>         ##   NOTE: uncomment also the definition of route[2] from  below
>>>         ##if( is_method("PUBLISH|SUBSCRIBE"))
>>>         ##              route(2);
>>>
>>>         if (is_method("PUBLISH"))
>>>         {
>>>                 sl_send_reply("503", "Service Unavailable");
>>>                 exit;
>>>         }
>>>
>>>
>>>         if (is_method("REGISTER"))
>>>         {
>>>                 # authenticate the REGISTER requests (uncomment to enable
>>> auth)
>>>                 ##if (!www_authorize("", "subscriber"))
>>> ##{
>>>                 ##      www_challenge("", "0");
>>>                 ##      exit;
>>>                 ##}
>>>                 ##
>>>                 ##if (!db_check_to())
>>>                 ##{
>>>                 ##      sl_send_reply("403","Forbidden auth ID");
>>>                 ##      exit;
>>>                 ##}
>>>
>>>                 #---- Request is behind NAT(flag5) save with bflag 6
>>> ----#
>>>                 #---- Use bflag 7 to start SIP pinging (Options)
>>> ----#
>>>                 if (isflagset(5)) {
>>>                         setbflag(6);
>>>                         setbflag(7);
>>>                 };
>>>
>>>                 if (!save("location"))
>>>                         sl_reply_error();
>>>
>>>                 exit;
>>>         }
>>>
>>>         if ($rU==NULL) {
>>>                 # request with no Username in RURI
>>>                 sl_send_reply("484","Address Incomplete");
>>>                 exit;
>>>         }
>>>
>>>         # apply DB based aliases (uncomment to enable)
>>>         ##alias_db_lookup("dbaliases");
>>> if (!lookup("location","m")) {
>>>                 switch ($retcode) {
>>>                         case -1:
>>>                         case -3:
>>>                                 t_newtran();
>>>                                 t_reply("404", "Not Found");
>>>                                 exit;
>>>                         case -2:
>>>                                 sl_send_reply("405", "Method Not
>>> Allowed");
>>>                                 exit;
>>>                 }
>>>         }
>>>
>>>         # when routing via usrloc, log the missed calls also
>>>         setflag(2);
>>>
>>>         route(1);
>>> }
>>>
>>>
>>> route[1] {
>>>         # for INVITEs enable some additional helper routes
>>>
>>>          #---- RTP Proxy handling ---#
>>>         if (is_method("BYE|CANCEL")) {
>>>                 unforce_rtp_proxy();
>>>         } else if (is_method("INVITE")){
>>>                 #---- Activates the RTP Proxy for the CALLEE ---#
>>>                 rtpproxy_offer();
>>>         };
>>>         #ak## catch and fix replies
>>>         #ak#t_on_reply("2");
>>>
>>>         if (is_method("INVITE")) {
>>>                 t_on_branch("2");
>>>                 t_on_reply("2");
>>>                 t_on_failure("1");
>>>         }
>>>
>>>         if (!t_relay()) {
>>>                 sl_reply_error();
>>>         };
>>>         exit;
>>> }
>>>
>>> branch_route[2] {
>>>         if (client_nat_test("3")) {
>>>                 fix_contact();
>>>         }
>>>
>>>         xlog("new branch at $ru\n");
>>> }
>>>
>>>
>>> onreply_route[2] {
>>>         if (client_nat_test("7")) {
>>>                 fix_contact();
>>>                 if ( is_method("INVITE") && has_body("application/sdp")
>>> ){
>>>                         ######ak# (isflagset(5) || isbflagset(6)) &&
>>>                         rtpproxy_answer();
>>>                 }
>>>         }
>>>         xlog("incoming reply\n");
>>> }
>>>
>>>
>>> failure_route[1] {
>>>
>>>         if (t_was_cancelled()) {
>>>                 exit;
>>>         }
>>>
>>>         # uncomment the following lines if you want to block client
>>>         # redirect based on 3xx replies.
>>>         ##if (t_check_status("3[0-9][0-9]")) {
>>>         ##t_reply("404","Not found");
>>>         ##      exit;
>>>         ##}
>>>
>>>         # uncomment the following lines if you want to redirect the
>>> failed
>>>         # calls to a different new destination
>>>         ##if (t_check_status("486|408")) {
>>>         ##      sethostport("192.168.2.100:5060");
>>>         ##      # do not set the missed call flag again
>>>         ##      t_relay();
>>>         ##}
>>> }
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://opensips-open-sip-server.1449251.n2.nabble.com/Problem-with-OpenSIPS-1-7-NAT-and-RTPProxy-tp7581021.html
>>> Sent from the OpenSIPS - Users mailing list archive at Nabble.com.
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>
>>
>>
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>>
>>
>
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