Thank you Klaus i am trying to do that myself if you see on my  config on the body of the message i log everything i solve the issue by providing a specific route and eliminating 0 in from of the prefix, it is ok but kamailio still not recognizes itself on aws setup even when i had advertise both ips and i had alias for both ips, if i dont define enything it will loop over until exhaustion, for now i reply with 488 wich tell me something is bad but i thought that kamailio will know when a message is send from itself to itself.

i appreciate your recommendations, unfortunately since i solved that way i have no more traces i will take the routing i added then i will sent some packed traces.

thank you.



On Mon, Oct 21, 2013 at 11:05 AM, Klaus Darilion <klaus.mailinglists@pernau.at> wrote:
It's difficult and time consuming to debug issues without seeing the config file and without seeing the packet traces (ngrep -W byline -d any -t -q -p "" port 5060).

Anyway, as an admin you should understand how Kamailio works. Thus it would be a good exercise to find the problem yourself. In severl places in your config you have routing decisions (if ... {}). Identify these places, and put meaningful logging (xlog("...") ) before and after the if statement.

Then make a call and watch the logfile. This will give you an understanding how Kamailio works.

regards
Klaus


On 21.10.2013 16:04, julian arsanches wrote:
Daniel, Klaus thanks a lot for your responses i do appreciate them, just got me a bit confuse because on the documents as what Daniel suggest to advertise directive for listen parameter, I do if you see my config below that i advertise it and have an alias, kamailio still sends an invite to itself without recognizing that it came from the internal ip.


Is there anything else wrong that i am not putting on my advertise line ?

thanks i really apreciate your input.

Julian.

/listen=udp:1.1.1.1:5060  <http://1.1.1.1:5060>  advertise2.2.2.2:5060  <http://2.2.2.2:5060>
/>>/
/>>/
/>>/  alias=1.1.1.1:5060  <http://1.1.1.1:5060>  <http://1.1.1.1:5060  <http://1.1.1.1:5060/>>
/>>/  alias=1.1.1.1
/>>/  alias=2.2.2.2:5060  <http://2.2.2.2:5060>  <http://2.2.2.2:5060  <http://2.2.2.2:5060/>>
/>>/  alias=2.2.2.2/

Hello,

for reference, in case kamailio is running behind nat, like on AWS, one
should just use advertise directive for listen parameter, like:>

listen=proto:privateip:port advertise publicip:port>


See:

http://www.kamailio.org/wiki/cookbooks/4.0.x/core#listen

It simplifies the config by not needing to use alias parameter,
advertised_address/set_addvertised_address() and record_route_preset().>

Cheers,
Daniel

On 10/18/13 8:23 AM, Klaus Darilion wrote:
/
/>/
/>/  On 17.10.2013 17:31, julian arsanches wrote:
/>>/  Hi all, before hand thanks for all the support received on this channel.
/>>/
/>>/  I have an issue with an installed server on a aws instance which is
/>>/  giving me routing loops, my setup is simple, i have alias set for both
/>>/  ips internal and external and the loop still present when t_relay don't
/>>/  find any routes to relay it just sent it to  itself with the public ip
/>>/  then the loop starts.
/>>/
/>>/  can any one please advise how can i prevent that or just tell t_relay
/>>/  that if there is no more routes just respond with a cancel or stop
/>>/  searching.
/>/
/>/  If you call t_relay, then the message will be forwarded to $ru (or to
/>/  $du if $du is set). t_relay itself does not have any logic inside.
/>/
/>/  Thus, if you do not want a message to be forwarded, then you must not
/>/  call t_relay.
/>/
/>/  If you do not want to send a message to a certain destination, then
/>/  set $ru (the domain part) to the respective destination.
/>/
/>/  One issue may be the aliases. If Kamailio thinks that it is not
/>/  authoritative for a domain, then it forwards the message to the
/>/  domain. Kamailio by default feels authoritative for the IP addresses
/>/  on which it listens (the private IP addresses). Thus if a request is
/>/  received by Kamailio, but the RURI (request URI, $ru) indicated the
/>/  public IP address, KAmailio by default forwards the message to the
/>/  respective RURI (which my be forward again by AWS NAT to Kamailio).
/>/
/>/  Thus, alias=public.ip.addr.ess must be added to the config.
/>/
/>/  If there are still problems you have set debug=4 and track in the log
/>/  file how the message is processed, and where the routing decision
/>/  takes the wrong direction.
/>/
/>/  regards
/>/  Klaus
/>/
/>>/
/>>/  same thing happens when a gw code is not found on the dispatcher list
/>>/  file.
/>>/
/>>/  as i had read by just specifying the alias=domain it should take care of
/>>/  it but it is not happening perhaps because it is a AWS instance, or most
/>>/  likely i am missing something after the T_relay to stop the call from
/>>/  looping.
/>>/
/>>/  I do have several headers fix because i have an asterisk sending calls
/>>/  with lots of signalling calls added to the call that i need to remove
/>>/  before the call is passed out to a carrier or another UA, Kamailio is
/>>/  just proxing the calls between asterisk and the outside world no Media
/>>/  handling, No registrations.
/>>/
/>>/    Again thanks for any tips to find my answer or if anyone had a similar
/>>/  issue thanks again.
/>>/
/>>/  thanks for any help .
/>>/
/>>/  Julian.
/>>/
/>>/  on this setup i have
/>>/
/>>/  public ip as 2.2.2.2
/>>/
/>>/  private IP as 1.1.1.1
/>>/
/>>/
/>>/  #!KAMAILIO
/>>/  ####### Global Parameters #########
/>>/
/>>/  #!ifdef WITH_DEBUG
/>>/  debug=4
/>>/  log_stderror=yes
/>>/  #!else
/>>/  #debug=2
/>>/  #log_stderror=yes
/>>/  #!endif
/>>/
/>>/  memdbg=5
/>>/  memlog=5
/>>/
/>>/  log_facility=LOG_LOCAL7
/>>/
/>>/  fork=yes
/>>/  children=6
/>>/
/>>/  auto_aliases=no
/>>/
/>>/
/>>/  listen=udp:1.1.1.1:5060  <http://1.1.1.1:5060>  <http://1.1.1.1:5060  <http://1.1.1.1:5060/>> advertise2.2.2.2:5060  <http://2.2.2.2:5060>
/>>/  <http://2.2.2.2:5060  <http://2.2.2.2:5060/>>
/>>/
/>>/  alias=1.1.1.1:5060  <http://1.1.1.1:5060>  <http://1.1.1.1:5060  <http://1.1.1.1:5060/>>
/>>/  alias=1.1.1.1
/>>/  alias=2.2.2.2:5060  <http://2.2.2.2:5060>  <http://2.2.2.2:5060  <http://2.2.2.2:5060/>>
/>>/  alias=2.2.2.2
/>>/
/>>/
/>>/  port=5060
/>>/
/>>/  enable_tls=no
/>>/
/>>/  #tcp_connection_lifetime=3605
/>>/
/>>/  #!ifdef WITH_SRCPATH
/>>/  mpath="modules_k:modules"
/>>/  #!else
/>>/  mpath="/usr/lib64/kamailio/modules_k/:/usr/lib64/kamailio/modules/"
/>>/
/>>/  #!endif
/>>/  loadmodule "db_mysql.so"
/>>/  ##loadmodule "mi_fifo.so"
/>>/  loadmodule "tm.so"
/>>/  loadmodule "sl.so"
/>>/  loadmodule "acc.so"
/>>/  loadmodule "rr.so"
/>>/  loadmodule "maxfwd.so"
/>>/  loadmodule "uac.so"
/>>/  loadmodule "textops.so"
/>>/  loadmodule "pv.so"
/>>/  loadmodule "dispatcher.so"
/>>/  loadmodule "usrloc.so"
/>>/  loadmodule "registrar.so"
/>>/  loadmodule "siputils.so"
/>>/  loadmodule "sanity.so"
/>>/  loadmodule "ctl.so"
/>>/  loadmodule "mi_rpc.so"
/>>/  loadmodule "avpops.so"
/>>/  #!ifdef WITH_NAT
/>>/  loadmodule "nathelper.so"
/>>/  loadmodule "rtpproxy.so"
/>>/  #!endif
/>>/  loadmodule "xlog.so"
/>>/  ##mysqlcdr
/>>/  modparam("acc", "db_flag", 2)
/>>/  modparam("acc", "db_missed_flag", 3)
/>>/  modparam("acc", "report_cancels", 1)
/>>/  modparam("acc", "db_url", "mysql://openser:password@1.1.1.2/openser
/>>/  <http://openser:password@1.1.1.2/openser>")
/>>/  modparam("acc", "db_extra", "from_uri=$fu; to_uri=$tu; intid=$fU;
/>>/  type_call=$si; dst_ip=$ru; carriercode=$tu;callmode=$var(out)" )
/>>/
/>>/  #loadmodule "carrierroute"
/>>/  modparam("tm", "cancel_b_method", 1)
/>>/  modparam("tm", "failure_reply_mode", 3)
/>>/  modparam("tm", "fr_timer", 30000)
/>>/  modparam("tm", "fr_inv_timer", 120000)
/>>/
/>>/  modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.lst")
/>>/  modparam("rr", "enable_full_lr", 1)
/>>/
/>>/  #!ifdef WITH_NAT
/>>/  # ----- rtpproxy params -----
/>>/  modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722  <http://127.0.0.1:7722>
/>>/  <http://127.0.0.1:7722  <http://127.0.0.1:7722/>>")
/>>/
/>>/  # ----- nathelper params -----
/>>/  modparam("nathelper", "natping_interval", 30)
/>>/  modparam("nathelper", "ping_nated_only", 1)
/>>/  modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
/>>/  modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org  <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
/>>/  <mailto:sip%  <mailto:sip%25>3Apinger at kamailio.org  <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>>")
/>>/  # ----- mi_fifo params -----
/>>/
/>>/  ##modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
/>>/
/>>/  # params needed for NAT traversal in other modules
/>>/  modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
/>>/  modparam("usrloc", "nat_bflag", FLB_NATB)
/>>/  #!endif
/>>/  modparam("xlog", "buf_size", 8192)
/>>/  modparam("xlog", "force_color", 1)
/>>/  #carrierroute
/>>/  #modparam("carrierroute", "config_file",
/>>/  "/etc/kamailio/carrierroute.conf")
/>>/  #end carrierroute
/>>/
/>>/  modparam("pv", "shvset", "ruta=s:$ru")
/>>/  modparam("pv", "varset","in=s:IN")
/>>/  modparam("pv", "varset","out=s:OUT")
/>>/  #################BEGINING MAINROUTE##################
/>>/  request_route {
/>>/
/>>/           if (!mf_process_maxfwd_header("4")) {
/>>/                   sl_send_reply("483","Too Many Hops");
/>>/  drop;
/>>/                   exit;
/>>/           }
/>>/  ##
/>>/    # initial sanity checks -- too long messages
/>>/          if (msg:len >=  2048 ) {
/>>/                  sl_send_reply("513", "Message too big");
/>>/  xlog("out header CHECK 513 baderror from_uri=$fu;($ct++)<$tU---=$var(n)>
/>>/  to_uri=$tu; intid=$fU; type_call=$si; dst_ip=$ru;
/>>/  carriercode=$var(z);callmode=$var(out)");
/>>/  drop;
/>>/                  exit;
/>>/          };
/>>/  #
/>>/           if(is_method("OPTIONS")) {
/>>/               # send reply for each options request
/>>/               sl_send_reply("200", "ok");
/>>/               exit();
/>>/            }
/>>/
/>>/
/>>/
/>>/  #
/>>/  if ( is_method("ACK") ) {
/>>/  if ( t_check_trans() ) {
/>>/  # no loose-route, but stateful ACK;
/>>/  # must be an ACK after a 487
/>>/  # or e.g. 404 from upstream server
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(t)=$(fn{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig');
/>>/
/>>/  # Remove prefixes numbers from Contact\
/>>/  t_relay();
/>>/  exit;
/>>/  } else {
/>>/  # ACK without matching transaction ... ignore and discard
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(t)=$(fn{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig');
/>>/  t_relay();
/>>/  exit;
/>>/  }
/>>/  }
/>>/  ##responding to bye requests and modifying headers to match invite
/>>/      if(method=="BYE") {
/>>/      #Account BYE transactions
/>>/  #$var(d) = $tu;
/>>/  #$var(e)=$(var(d){s.substr,4,3});
/>>/  setflag(2);
/>>/  setflag(10);
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(t)=$(fn{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig');
/>>/  t_relay();
/>>/           exit;
/>>/  };
/>>/
/>>/  #CANCEL processing
/>>/  if (method=="CANCEL") {
/>>/  setflag(2);
/>>/  setflag(3);
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(t)=$(fn{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig');
/>>/  t_relay();
/>>/           exit;
/>>/  ##if (t_check_trans()) t_relay();
/>>/
/>>/  exit;
/>>/  };
/>>/
/>>/
/>>/  #
/>>/
/>>/
/>>/  #
/>>/          if (loose_route()) {
/>>/
/>>/
/>>/  ##
/>>/  if(is_method("OPTIONS")) {
/>>/               # send reply for each options request
/>>/               sl_send_reply("200", "ok");
/>>/               exit();
/>>/            }
/>>/  ##
/>>/  if(method=="BYE") {
/>>/      #Account BYE transactions
/>>/  setflag(2);
/>>/  };
/>>/
/>>/
/>>/  ##CANCEL processing
/>>/  if (method=="CANCEL") {
/>>/  setflag(3);
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(t)=$(fn{re.subst,/^.*11811(.*)/"\1/});
/>>/
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig');
/>>/  if (t_check_trans()) t_relay();
/>>/  exit;
/>>/  };
/>>/
/>>/  if (!t_relay()) {
/>>/                           sl_reply_error();
/>>/                   }
/>>/                   exit;
/>>/          }
/>>/
/>>/
/>>/    if (is_method("INVITE")) { #Procesing invites
/>>/
/>>/
/>>/  record_route();
/>>/           }
/>>/  ##LOGGING CALL BEFORE IS PROCESSED
/>>/  xlog("before strip,< time [$Tf] > Aip= $src_ip, r-uri($ru\n");
/>>/  xlog("before from_uri=$fu; to_uri=$tu; pai=<<$ct>>;intid=$fU;
/>>/  type_call=$si; dst_ip=$ru; carriercode=$tu;callmode=$var(out)
/>>/  --$$--$ou");
/>>/  #creando rutas
/>>/  setflag(2);
/>>/  # Account Missed calls
/>>/  setflag(3);
/>>/  ###VARIABLES FOR MODIFICATIONS
/>>/  $var(x) = $(ru);
/>>/
/>>/  $var(y)=$(var(x){s.substr,4,3});
/>>/
/>>/  $var(z)=$(var(y){s.int  <http://s.int>  <http://s.int  <http://s.int/>>});
/>>/
/>>/  $var(t)=$(var(x){s.substr,7,0});
/>>/
/>>/  $var(h)=$(var(x){s.substr,0,7});
/>>/
/>>/  $var(o)=$(fU{s.substr,14,0});
/>>/
/>>/  if($(var(x){s.len}) < 3)
/>>/  {
/>>/    $var(z)='0'+ $var(z);
/>>/  }
/>>/
/>>/  xlog("dsroute $var(z)fullruri($ru)\n");
/>>/
/>>/
/>>/  strip(3);
/>>/
/>>/  xlog("after strip time [$Tf] method ($rm) via el code
/>>/  ($var(z)--varhex($var(h))-- ($var(y))\n");
/>>/  xlog("after from_uri=$fu; to_uri=$tu; intid=$fU; type_call=$si;
/>>/  dst_ip=$ru; carriercode=$var(z);callmode=$var(out)");
/>>/
/>>/  ds_select_domain ("$var(z)", "4");#carrer dynamic
/>>/
/>>/
/>>/  ###########KILLING BUGGIES#######when t_realy fails to find a route a
/>>/  loop is generate then strip takes off a digit until0 at 2.2.2.2  <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
/>>/  <mailto:0 at 2.2.2.2  <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>> is left for to: user this kills that call.#####
/>>/  if ($(tU{s.len}) < 4) {
/>>/  xlog("CHECK TU 1bad kILLING BUGGIES>>> $tu--$td-$tU-$tt--$dd-$dd-$du-
/>>/  -<<$rd>$ru --- $oU> pai+++ <<$ct>>++ from_uri=$fu;<$tU---=$var(n)>
/>>/  to_uri=$tu; }pai<$ai> id=$fU; type_call=$si; dst_ip=$ru;
/>>/  carriercode=$var(z);callmode=$var(out)");
/>>/  ##sl_reply_error();
/>>/  ##sl_send_reply("513", "Message too big");
/>>/  ##sl_send_reply("488","Not Acceptable Here");
/>>/  sl_send_reply("488","Not Acceptable Here");
/>>/  #t_reset_retr();
/>>/  #t_release();
/>>/  ##if(!t_relay()){ sl_reply_error(); drop; exit;}
/>>/
/>>/  #if (!t_relay()) { sl_reply_error(); break; };
/>>/  # t_relay();
/>>/  #setflag(2);
/>>/  drop;
/>>/  exit;
/>>/
/>>/  }; ## Endif less than 4
/>>/  ##############END KILLING###########
/>>/  ################ROUTE SELECTION###############
/>>/  if($(fn{s.len}) > 10) { # IF WE CHECK FOR FROM: ROUTEID MUST BE LONGER
/>>/  THAN 10 DIGITS TO BE A VALID ROUTE
/>>/
/>>/  xlog("out header CHECK more than 10 digits BEFORE
/>>/  from_uri=$fu;($ct++)<$tU---=$var(n)> to_uri=$tu; intid=$fU;
/>>/  type_call=$si; dst_ip=$ru; carriercode=$var(z);callmode=$var(out)");
/>>/  $var(n)=$(tU{s.substr,3,0});
/>>/  $var(i)=$(ct{re.subst,/^.*00700(.*)/"\1/});
/>>/  $var(t)=$(fn{re.subst,/^.*00700(.*)/"\1/});
/>>/  $var(r)=$rd; ##to domain
/>>/  $fU=$(fU{s.substr,14,0});
/>>/  $fn=$var(t);
/>>/  $tU=$var(n);
/>>/  $td=$var(r);
/>>/
/>>/  subst('/^Contact:.*11811(.*)$/Contact: <sip:\1\2/ig'); # Remove number
/>>/  from Contact
/>>/
/>>/  ##if(!t_relay()){ sl_reply_error(); drop; exit;}
/>>/
/>>/  if (!t_relay()) { sl_reply_error(); break; };
/>>/
/>>/  # t_relay();
/>>/
/>>/  drop;
/>>/    exit;
/>>/
/>>/  };
/>>/
/>>/  ################ENDrouteselect##############################
/>>/
/>>/
/>>/  ###############AFTER LAST IF##############reply 488 ANY CALL THAT DID
/>>/  NOT FOUND A ROUTE.
/>>/  sl_send_reply("488","Not Acceptable Here");
/>>/  drop;
/>>/  exit;
/>>/  }
/>>/
/>>/  ###################END MAINROUTE#################
/>>/
/>>/
/>>/
/>>/
/>>/
/>>/  On My dispatcher.lst i have
/>>/
/>>/
/>>/  1 sip:1.1.1.1:5060  <http://1.1.1.1:5060>  <http://1.1.1.1:5060  <http://1.1.1.1:5060/>>
/>>/  2 sip:2.2.2.2:5060  <http://2.2.2.2:5060>  <http://2.2.2.2:5060  <http://2.2.2.2:5060/>>
/>>/  3 sip:3.3.3.3:5060  <http://3.3.3.3:5060>  <http://3.3.3.3:5060  <http://3.3.3.3:5060/>>
/>>/  3 sip:3.3.3.5:5060  <http://3.3.3.5:5060>  <http://3.3.3.5:5060  <http://3.3.3.5:5060/>>
/>>/  ...
/>>/
/>>/
/>>/
/>>/
/>>/  _______________________________________________
/>>/  SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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/>/  _______________________________________________
/>/  SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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--
Daniel-Constantin Mierla -http://www.asipto.com  <http://www.asipto.com/>
http://twitter.com/#!/miconda  -http://www.linkedin.com/in/miconda

Kamailio Advanced Trainings - Berlin, Nov 25-28; Miami, Nov 18-20, 2013
    - more details about Kamailio trainings athttp://www.asipto.com  <http://www.asipto.com/>  -


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