[Serusers] UDP to TCP using SER (as conversion purpose), need ser.cfg example
Goh Sheng Mai
shengmai_goh at innomedia.com.sg
Tue Feb 26 02:55:34 CET 2008
Hi
anyone can help mi with SIP (Linux) UDP -> TCP conversion and vice versa
using SER? i am having too large UDP SIP packets fragmented. it there
any other free source out there that can do such conversion?
Cheers
Goh
shengmai_goh at innomedia.com.sg
Goh Sheng Mai wrote:
> hi
>
> i have large voip udp packets over internet problems and i need the
> transfer medium to be tcp. below is what i had in mind.
>
> SIPp_client A (TCP out) -> (listen TCP) SER 1 (UDP out) --> Soft-switch
> (UDP in /out only) --> (to) ring Client B (listen UDP)
>
> Client A and Client B registers to above Soft-switch. All the above are
> individual servers (Linux CentOS based)
>
> i need help in a (conversion) ser.cfg. Can anyone post a sample ?? below
> is my ser.cfg (tried using t_relay_to_udp(), rewritehost(),
> rewritehostport(), forward functions BUT none seems to work the way i
> want it to)
>
> SER 1 == 192.168.10.203
> Softswitch == 192.168.10.251
> Client A == 192.168.10.221 or .236 (SIPp client-registered to
> soft-switch successfully)
> Client B == 192.168.x.x (registered to soft-switch successfully)
>
>
> Thanks
> shengmai
> shengmai_goh at innomedia.com.sg
>
>
> #
> # $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei 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
> 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"
>
> # ------------------ module loading ----------------------------------
>
> # Uncomment this if you want to use SQL database
> #loadmodule "/usr/local/lib/ser/modules/mysql.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"
> loadmodule "/usr/local/lib/ser/modules/textops.so"
> loadmodule "/usr/local/lib/ser/modules/print.so"
> loadmodule "/usr/local/lib/ser/modules/uri.so"
>
> # Uncomment this if you want digest authentication
> # mysql.so must be loaded !
> #loadmodule "/usr/local/lib/ser/modules/auth.so"
> #loadmodule "/usr/local/lib/ser/modules/auth_db.so"
>
> # ----------------- setting module-specific parameters ---------------
>
> # -- usrloc params --
>
> modparam("usrloc", "db_mode", 0)
>
> # Uncomment this if you want to use SQL database
> # for persistent storage and comment the previous line
> #modparam("usrloc", "db_mode", 2)
>
> # -- auth params --
> # Uncomment if you are using auth module
> #
> #modparam("auth_db", "calculate_ha1", yes)
> #
> # If you set "calculate_ha1" parameter to yes (which true in this config),
> # uncomment also the following parameter)
> #
> #modparam("auth_db", "password_column", "password")
>
> # -- 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 (msg:len >= 2048 ) {
> 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
> if (!method=="REGISTER") record_route();
> #if (method == "INVITE") {
> # if (uri =~ "sip:*@*"){
> # log(1, "Forwarding to Vsp12K\n");
> # rewritehostport("192.168.10.204:5060");
> # t_relay();
> # break;
> # }
> #};
>
> if (uri =~ "sip:*@*"){
> #log(1, "Forwarding to Vsp12K\n");
> #rewritehostport("192.168.10.204:5060");
> if (uri =~ "sip:*@192.168.10.203"){
> rewritehostport("192.168.10.251:5060");
> }
> t_relay_to_udp("192.168.10.251", "5060");
> #t_relay();
> break;
> };
>
>
> # subsequent messages withing a dialog should take the
> # path determined by record-routing
> if (loose_route()) {
> # mark routing logic in request
> append_hf("P-hint: rr-enforced\r\n");
> route(1);
> break;
> };
>
> if (!uri==myself) {
> # mark routing logic in request
> append_hf("P-hint: outbound\r\n");
> route(1);
> 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") {
>
> # Uncomment this if you want to use digest authentication
> # if (!www_authorize("iptel.org", "subscriber")) {
> # www_challenge("iptel.org", "0");
> # break;
> # };
>
> save("location");
> break;
> };
>
> lookup("aliases");
> if (!uri==myself) {
> append_hf("P-hint: outbound alias\r\n");
> route(1);
> break;
> };
>
> # native SIP destinations are handled using our USRLOC DB
> if (!lookup("location")) {
> sl_send_reply("404", "Not Found");
> break;
> };
> };
> append_hf("P-hint: usrloc applied\r\n");
> route(1);
> }
>
> route[1]
> {
> # -----------------------------------------------------------------
> # Pass on stuff going to PSTN to Asterisk
> # -----------------------------------------------------------------
> #if (uri=~"^sip:*@.*") {
> # rewritehostport ("*192.168.10.204:5060");
> # if (!t_relay()) {
> # # sl_send_reply ("403", "prout");
> # sl_reply_error();
> # };
> # break;
> #};
> rewritehostport("192.168.10.204:5060");
>
> # send it out now; use stateful forwarding as it works reliably
> # even for UDP2TCP
> if (!t_relay()) {
> sl_reply_error();
> };
> break;
> }
>
>
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