[Serusers] UDP to TCP using SER (as conversion purpose), need ser.cfg example
Greger Viken Teigre
greger at teigre.com
Tue Feb 26 09:51:21 CET 2008
Well, you can for example add transport=tcp:
add_uri_param("transport=tcp");
and then t_relay()
g-)
Goh Sheng Mai wrote:
> 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;
>> }
>>
>>
>> _______________________________________________
>> Serusers mailing list
>> Serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>>
>>
>>
>>
>
>
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