[Serusers] UDP to TCP using SER (as conversion purpose), need ser.cfg example
Goh Sheng Mai
shengmai_goh at innomedia.com.sg
Thu Feb 28 04:34:27 CET 2008
Hi
thanks for the help. i have this HUGE problem. my soft-switch only
listens UDP packets while my client (hardware) sends out TCP packets. i
want to make SER as a proxy/ gateway/ converter (or whatever others call
it). how do i go about to do that in the "ser.cfg". i tried using
rewritehost, forward, tcp_relay_to_udp commands BUT the problem is still
there. example, the clients should register to SER or my soft-switch in
the case ?
by the way, does SER have any web GUI ? (besides the normal serweb).
thanks
Client A ---> SER --> soft-switch ---> SER ---> Client B
Cheers
Goh
Greger Viken Teigre wrote:
> 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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