Nat traversal-mediaproxy-opensips

Hello all,
I have a problem with nat travesal, I install opensips and mediaproxy, but i don't have the communication.

This is my opensip.cfg:

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

debug=3
log_stderror=no
log_facility=LOG_LOCAL0

fork=yes
children=4

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

/* uncomment the next line to disable TCP (default on) */
disable_tcp=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

/* uncomment the next line to disable the auto discovery of local aliases
based on revers DNS on IPs (default on) */
#auto_aliases=no

/* uncomment the following lines to enable TLS support (default off) */
#disable_tls = no
#listen = tls:your_IP:5061
#tls_verify_server = 1
#tls_verify_client = 1
#tls_require_client_certificate = 0
#tls_method = TLSv1
#tls_certificate = "/etc/opensips/tls/user/user-cert.pem"
#tls_private_key = "/etc/opensips/tls/user/user-privkey.pem"
#tls_ca_list = "/etc/opensips/tls/user/user-calist.pem"


port=5060

/* uncomment and configure the following line if you want opensips to
bind on a specific interface/port/proto (default bind on all available) */
listen=udp:192.168.2.100:5060


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

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

/* uncomment next line for MySQL DB support */


loadmodule "mediaproxy.so" #this is the module of opensips which is able to connect to mediaproxy


loadmodule "db_mysql.so"
loadmodule "signaling.so"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"

loadmodule "dialog.so" #we add it because mediaproxy.so need it


loadmodule "nat_traversal.so"



loadmodule "maxfwd.so"
loadmodule "usrloc.so"


loadmodule "nathelper.so"


loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "mi_fifo.so"
loadmodule "uri_db.so"
loadmodule "uri.so"
loadmodule "xlog.so"
loadmodule "acc.so"



loadmodule "mangler.so"




/* uncomment next lines for MySQL based authentication support
NOTE: a DB (like db_mysql) module must be also loaded */
loadmodule "auth.so"
loadmodule "auth_db.so"
/* uncomment next line for aliases support
NOTE: a DB (like db_mysql) module must be also loaded */
#loadmodule "alias_db.so"
/* uncomment next line for multi-domain support
NOTE: a DB (like db_mysql) module must be also loaded
NOTE: be sure and enable multi-domain support in all used modules
(see "multi-module params" section ) */
#loadmodule "domain.so"
/* uncomment the next two lines for presence server support
NOTE: a DB (like db_mysql) module must be also loaded */
#loadmodule "presence.so"
#loadmodule "presence_xml.so"


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


# ----- mi_fifo params -----
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")


# ----- rr params -----
# add value to ;lr param to cope with most of the UAs
modparam("rr", "enable_full_lr", 1)
# do not append from tag to the RR (no need for this script)
modparam("rr", "append_fromtag", 0)


# ----- registrar params -----
modparam("registrar", "method_filtering", 1)
/* uncomment the next line to disable parallel forking via location */
# modparam("registrar", "append_branches", 0)
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)


# ----- usrloc params -----
#modparam("usrloc", "db_mode", 0)
/* uncomment the following lines if you want to enable DB persistency
for location entries */
modparam("usrloc", "db_mode", 2)
#modparam("usrloc", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")





modparam("usrloc", "nat_bflag", 3)






# ----- uri_db params -----
/* by default we disable the DB support in the module as we do not need it
in this configuration */
modparam("uri_db", "use_uri_table", 0)
modparam("uri_db", "db_url", "")


# ----- acc params -----
/* what sepcial events should be accounted ? */
modparam("acc", "early_media", 1)
modparam("acc", "report_ack", 1)
modparam("acc", "report_cancels", 1)
/* by default ww 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)
/* account triggers (flags) */
modparam("acc", "failed_transaction_flag", 3)
modparam("acc", "log_flag", 1)
modparam("acc", "log_missed_flag", 2)
/* uncomment the following lines to enable DB accounting also */
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 2)


# ----- auth_db params -----
/* uncomment the following lines if you want to enable the DB based
authentication */
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")
#modparam("auth_db", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")
#modparam("auth_db", "load_credentials", "")


# ----- alias_db params -----
/* uncomment the following lines if you want to enable the DB based
aliases */
#modparam("alias_db", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")


# ----- domain params -----
/* uncomment the following lines to enable multi-domain detection
support */
#modparam("domain", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")
#modparam("domain", "db_mode", 1) # Use caching


# ----- multi-module params -----
/* uncomment the following line if you want to enable multi-domain support
in the modules (dafault off) */
#modparam("alias_db|auth_db|usrloc|uri_db", "use_domain", 1)


# ----- presence params -----
/* uncomment the following lines if you want to enable presence */
#modparam("presence|presence_xml", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")
#modparam("presence_xml", "force_active", 1)
#modparam("presence", "server_address", "sip:192.168.1.2:5060")



# ----- dialog param -----
modparam("dialog", "dlg_flag", 4)



# ------- -----------
modparam("nat_traversal", "keepalive_interval", 90)
modparam("nat_traversal", "keepalive_method", "OPTIONS")
modparam("nat_traversal", "keepalive_from", "sip:keepalive@192.168.2.100")


modparam("nathelper", "natping_interval", 60)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "sipping_bflag", 7)
modparam("nathelper", "received_avp", "$avp(i:801)")
modparam("nathelper", "sipping_from", "sip:pinger@192.168.2.100")



modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy/dispatcher.sock")
modparam("mediaproxy", "mediaproxy_timeout", 500)
modparam("mediaproxy", "signaling_ip_avp", "$avp(s:nat_ip)")
modparam("mediaproxy", "media_relay_avp", "$avp(s:media_relay)")









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


# main request routing logic

route{





if (is_method("INVITE") ) {
# We can also use a specific media relay if we need to
#$avp(s:med ia_relay) = "1.2.3.4";
engage_media_proxy();
}






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()) {
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();
exit;
}

t_check_trans();

# authenticate if from local subscriber (uncomment to enable auth)
# authenticate all initial non-REGISTER request that pretend to be
# generated by local subscriber (domain from FROM URI is local)
##if (!(method=="REGISTER") && from_uri==myself) /*no multidomain version*/
##if (!(method=="REGISTER") && is_from_local()) /*multidomain version*/
##{
## if (!proxy_authorize("", "subscriber")) {
## proxy_challenge("", "0");
## exit;
## }
## if (!check_from()) {
## sl_send_reply("403","Forbidden auth ID");
## exit;
## }
##
## consume_credentials();
## # caller authenticated
##}

# 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("192.168.2.100", "subscriber"))
{
www_challenge("192.168.2.100", "0");
exit;
}
##
##if (!check_to())
##{
## sl_send_reply("403","Forbidden auth ID");
## exit;
##}





if (client_nat_test("3")){
setflag(2);
force_rport();
fix_contact();
}







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")) {
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
if (is_method("INVITE")) {
t_on_branch("2");
t_on_reply("2");
t_on_failure("1");
}

if (!t_relay()) {
sl_reply_error();
};
exit;
}


# Presence route
/* uncomment the whole following route for enabling presence
NOTE: do not forget to enable the call of this route from the main
route */
##route[2]
##{
## if (!t_newtran())
## {
## sl_reply_error();
## exit;
## };
##
## if(is_method("PUBLISH"))
## {
## handle_publish();
## t_release();
## }
## else
## if( is_method("SUBSCRIBE"))
## {
## handle_subscribe();
## t_release();
## }
##
## exit;
##}


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


onreply_route[2] {
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();
##}
}




Bestregadrs

Joni

If you want to check kamailio 3.0.0, it has nat traversal support in the default config file, you just need to install rtpproxy and define WITH_NAT in config (read the top part of config). See:

http://www.kamailio.org/dokuwiki/doku.p ... x-from-git