Calls dropping after 30 seconds (opensips is behind NAT, user agent is behind NAT)

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Calls dropping after 30 seconds (opensips is behind NAT, user agent is behind NAT)

Adrian Pinder
Hi,

I installed opensips version 1.8, I can register and make calls ok between endpoints. I have opensips installed behind a NAT and my user agent are also behind NAT. i can register and I got rtpproxy working.

I enabled NAT during the setup phase using the menuconfig.

The problem I'm having; is calls are dropping exactly after 30-34 seconds.

How do I enable NAT?

Thanks


Here's my .cfg file
--------------------------------------------------------------------------------------------------

#
# $Id: opensips_residential.m4 9042 2012-05-17 13:57:10Z vladut-paiu $
#
# OpenSIPS residential configuration script
#     by OpenSIPS Solutions <[hidden email]>
#
# This script was generated via "make menuconfig", from
#   the "Residential" scenario.
# You can enable / disable more features / functionalities by
#   re-generating the scenario with different options.#
#
# Please refer to the Core CookBook at:
#      http://www.opensips.org/Resources/DocsCookbooks
# for a explanation of possible statements, functions and parameters.
#


####### Global Parameters #########

debug=3
log_stderror=no
log_facility=LOG_LOCAL1

fork=yes
children=4

advertised_address="x.x.x.x"
#alias="x.x.x.x:5060"

/* uncomment the following lines to enable debugging */
#debug=6
#fork=no
#log_stderror=yes

/* uncomment the next line to enable the auto temporary blacklisting of
   not available destinations (default disabled) */
#disable_dns_blacklist=no

/* uncomment the next line to enable IPv6 lookup after IPv4 dns
   lookup failures (default disabled) */
#dns_try_ipv6=yes

/* comment the next line to enable the auto discovery of local aliases
   based on revers DNS on IPs */
auto_aliases=no


listen=udp:x.x.x.x:5060   # CUSTOMIZE ME

disable_tcp=no
listen=tcp:x.x.x.x:5060   # CUSTOMIZE ME

disable_tls=no
listen=tls:x.x.x.x:5061   # CUSTOMIZE ME
tls_verify_server=1
tls_verify_client = 1
tls_require_client_certificate = 0
tls_method = TLSv1
tls_certificate = "/usr/local/opensips_proxy/etc/opensips/tls/user/user-cert.pem"
tls_private_key = "/usr/local/opensips_proxy/etc/opensips/tls/user/user-privkey.pem"
tls_ca_list = "/usr/local/opensips_proxy/etc/opensips/tls/user/user-calist.pem"


####### Modules Section ########

#set module path
mpath="/usr/local/opensips_proxy/lib/opensips/modules/"

#### SIGNALING module
loadmodule "signaling.so"

#### StateLess module
loadmodule "sl.so"

#### Transaction Module
loadmodule "tm.so"
modparam("tm", "fr_timer", 5)
modparam("tm", "fr_inv_timer", 30)
modparam("tm", "restart_fr_on_each_reply", 0)
modparam("tm", "onreply_avp_mode", 1)

#### Record Route Module
loadmodule "rr.so"
/* do not append from tag to the RR (no need for this script) */
modparam("rr", "append_fromtag", 0)

#### MAX ForWarD module
loadmodule "maxfwd.so"

#### SIP MSG OPerationS module
loadmodule "sipmsgops.so"

#### FIFO Management Interface
loadmodule "mi_fifo.so"
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)


#### URI module
loadmodule "uri.so"
modparam("uri", "use_uri_table", 0)
modparam("uri", "db_url",
    "mysql://user:[hidden email]/opensips")




#### MYSQL module
loadmodule "db_mysql.so"

#### USeR LOCation module
loadmodule "usrloc.so"
modparam("usrloc", "nat_bflag", 10)
modparam("usrloc", "db_mode",   2)
modparam("usrloc", "db_url",
    "mysql://user:[hidden email]/opensips") # CUSTOMIZE ME


#### REGISTRAR module
loadmodule "registrar.so"
modparam("registrar", "tcp_persistent_flag", 7)
modparam("registrar", "received_avp", "$avp(received_nh)")
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)

#### ACCounting module
loadmodule "acc.so"
/* what special events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_cancels", 0)
/* by default we do not adjust the direct of the sequential requests.
   if you enable this parameter, be sure the enable "append_fromtag"
   in "rr" module */
modparam("acc", "detect_direction", 0)
modparam("acc", "failed_transaction_flag", 3)
/* account triggers (flags) */
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 2)
modparam("acc", "db_url",
    "mysql://user:[hidden email]/opensips") # CUSTOMIZE ME


#### AUTHentication modules
loadmodule "auth.so"
loadmodule "auth_db.so"
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")
modparam("auth_db", "db_url",
    "mysql://user:[hidden email]/opensips") # CUSTOMIZE ME
modparam("auth_db", "load_credentials", "")








#### DIALOG module
loadmodule "dialog.so"
modparam("dialog", "dlg_match_mode", 1)
modparam("dialog", "default_timeout", 21600)  # 6 hours timeout
modparam("dialog", "db_mode", 2)
modparam("dialog", "db_url",
    "mysql://user:[hidden email]/opensips") # CUSTOMIZE ME


####  NAT modules
loadmodule "nathelper.so"
modparam("nathelper", "natping_interval", 10)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "natping_processes", 3)
modparam("nathelper", "received_avp", "$avp(received_nh)")




loadmodule "rtpproxy.so"
modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:12221") # CUSTOMIZE ME





####### Routing Logic ########

# main request routing logic

route{
    force_rport();
    if (nat_uac_test("23")) {
        if (is_method("REGISTER")) {
            fix_nated_register();
            setbflag(10);
        } else {
            fix_nated_contact();
            setflag(10);
        }
    }
    
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 {
     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;

    }   
   
    if (!mf_process_maxfwd_header("10")) {
        sl_send_reply("483","Too Many Hops");
        exit;
    }

    if (has_totag()) {
        # sequential request withing a dialog should
        # take the path determined by record-routing
        if (loose_route()) {
           
            # validate the sequential request against dialog
            if ( $DLG_status!=NULL && !validate_dialog() ) {
                xlog("In-Dialog $rm from $si (callid=$ci) is not valid according to dialog\n");
                ## exit;
            }
           
            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();
            }

            if (check_route_param("nat=yes"))
                setflag(10);

            # route it out to whatever destination was set by loose_route()
            # in $du (destination URI).
            route(1);
        } else {
           
            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;
    }

    # CANCEL processing
    if (is_method("CANCEL"))
    {
        if (t_check_trans())
            t_relay();
        exit;
    }

    t_check_trans();

    if ( !(is_method("REGISTER")  ) ) {
       
        if (from_uri==myself)
       
        {
           
            # authenticate if from local subscriber
            # authenticate all initial non-REGISTER request that pretend to be
            # generated by local subscriber (domain from FROM URI is local)
            if (!proxy_authorize("", "subscriber")) {
                proxy_challenge("", "0");
                exit;
            }
            if (!db_check_from()) {
                sl_send_reply("403","Forbidden auth ID");
                exit;
            }
       
            consume_credentials();
            # caller authenticated
           
        } else {
            # if caller is not local, then called number must be local
           
            if (!uri==myself) {
                send_reply("403","Rely forbidden");
                exit;
            }
        }

    }

    # 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")) {
       
        # create dialog with timeout
        if ( !create_dialog("B") ) {
            send_reply("500","Internal Server Error");
            exit;
        }
       
        setflag(1); # do accounting
    }

   
    if (!uri==myself) {
        append_hf("P-hint: outbound\r\n");
       
        # if you have some interdomain connections via TLS
        ## CUSTOMIZE IF NEEDED
        ##if ($rd=="tls_domain1.net"
        ## || $rd=="tls_domain2.net"
        ##) {
        ##    force_send_socket(tls:127.0.0.1:5061); # CUSTOMIZE
        ##}
       
        route(1);
    }

    # requests for my domain
   
    if (is_method("PUBLISH|SUBSCRIBE"))
    {
        sl_send_reply("503", "Service Unavailable");
        exit;
    }

    if (is_method("REGISTER"))
    {
       
        # authenticate the REGISTER requests
        if (!www_authorize("", "subscriber"))
        {
            www_challenge("", "0");
            exit;
        }
       
        if (!db_check_to())
        {
            sl_send_reply("403","Forbidden auth ID");
            exit;
        }

        if ( proto==TCP || proto==TLS || 0 ) setflag(7);

        if (!save("location"))
            sl_reply_error();

        exit;
    }

    if ($rU==NULL) {
        # request with no Username in RURI
        sl_send_reply("484","Address Incomplete");
        exit;
    }

   

   

     

    # do lookup with method filtering
    if (!lookup("location","m")) {
        if (!db_does_uri_exist()) {
            send_reply("420","Bad Extension");
            exit;
        }
       
        t_newtran();
        t_reply("404", "Not Found");
        exit;
    }

    if (isbflagset(10)) setflag(10);

    # when routing via usrloc, log the missed calls also
    setflag(2);
    route(1);
}


route[1] {
    # for INVITEs enable some additional helper routes
    if (is_method("INVITE")) {
       
        if (isflagset(10)) {
            rtpproxy_offer("ro");
        }

        t_on_branch("2");
        t_on_reply("2");
        t_on_failure("1");
    }

    if (isflagset(10)) {
        add_rr_param(";nat=yes");
        }

    if (!t_relay()) {
        send_reply("500","Internal Error");
    };
    exit;
}




branch_route[2] {
    xlog("new branch at $ru\n");
}


onreply_route[2] {
    if (nat_uac_test("1"))
        fix_nated_contact();
    if ( isflagset(10) )
        rtpproxy_answer("ro");
    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;
    ##}

   
}



local_route {
    if (is_method("BYE") && $DLG_dir=="UPSTREAM") {
       
        acc_db_request("200 Dialog Timeout", "acc");
       
    }
}

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Re: Calls dropping after 30 seconds (opensips is behind NAT, user agent is behind NAT)

Laszlo



2014-03-18 16:29 GMT+01:00 Adrian Pinder <[hidden email]>:
Hi,

I installed opensips version 1.8, I can register and make calls ok between endpoints. I have opensips installed behind a NAT and my user agent are also behind NAT. i can register and I got rtpproxy working.

I enabled NAT during the setup phase using the menuconfig.

The problem I'm having; is calls are dropping exactly after 30-34 seconds.

How do I enable NAT?

Thanks

.......


You will need to trace a call with ngrep, just to make sure the 200 OK and the ACKs are routed fine! This can be cause of the call drops.

--
Kind regards,
Laszlo Bekesi
http://igg.me/at/byob/x/6190871

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