[Serusers] NAT example

Greger V. Teigre greger at teigre.com
Tue Aug 30 07:44:47 CEST 2005


Try to Getting Started document from http://onsip.org/  You will find both a 
working config, as well as detailed explanation of the theory and actual 
commands.
g-)

Kamran Ahmad wrote:
> Hello
>
> i am following this link for ser-0.9.3 but Nated
> Clients are not working. Can any one please tell me
> what is the problem in my configuration.
>
> http://www.voip-info.org/tiki-index.php?page=SER+nat+support
>
> ----------------------------------------------------------------
> #ser.cfg
>  # $Id: ser.cfg,v 1.21 2003/06/04 13:47:36 jiri 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=mydomain.dyndns.org
>
>  # ------------------ module loading
> ----------------------------------
>
>
>  loadmodule "/usr/local/lib/ser/modules/nathelper.so"
>  loadmodule "/usr/local/lib/ser/modules/textops.so"
>  loadmodule "/usr/local/lib/ser/modules/sl.so"
>  loadmodule "/usr/local/lib/ser/modules/tm.so"
>  loadmodule "/usr/local/lib/ser/modules/rr.so"
>  loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
>  loadmodule "/usr/local/lib/ser/modules/usrloc.so"
>  loadmodule "/usr/local/lib/ser/modules/registrar.so"
>
>
>  # ----------------- setting module-specific
> parameters ---------------
>  # -- usrloc params --
>  modparam("usrloc", "db_mode",   0)
>
>
>  # -- 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 (len_gt( 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") {
> 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();
>  }
>
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