FW: [Serusers] Rtpproxy

Klaus Darilion klaus.mailinglists at pernau.at
Thu Feb 26 15:35:04 CET 2004


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regards,
klaus

PS: cc to the mailing list!

Shirley Toh wrote:

> Hi , 
> 
> How about the force_rtp_proxy? Where should I appropriate apply this
> command? The current Nat module have no problem going through from Symmetric
> Newtwork to Symmetric Network right? Thank you for your answer it really
> helps!!! :)
> 
> Regards, 
> Shirley
> 
> 
>>-----Original Message-----
>>From:	Klaus Darilion [SMTP:klaus.mailinglists at pernau.at]
>>Sent:	Thursday, February 26, 2004 8:18 PM
>>To:	Shirley Toh
>>Cc:	SER Users (E-mail)
>>Subject:	Re: FW: [Serusers] Rtpproxy
>>
>>start ethereal on the machine with the SIP&RTP proxy. as filter use: UDP
>>Then take a look at the SIP messages. The nathelper module has to 
>>rewrite the IP-address and the port in the SDP of the INVITE and the 200 
>>OK message.
>>
>>klaus
>>
>>Shirley Toh wrote:
>>
>>>Hi, 
>>>
>>>thank you for replying....
>>>
>>>Yes my UA do support Symmetric. What are the things that I have to take
>>
>>note
>>
>>>on the messages that whether the messages is properly written? And how
>>
>>can I
>>
>>>check the IP address and port on the RTP traffic? Please help...is
>>
>>really
>>
>>>greatly appreciated.
>>>
>>>
>>>Regards, 
>>>Shirley
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From:	Klaus Darilion [SMTP:klaus.mailinglists at pernau.at]
>>>>Sent:	Thursday, February 26, 2004 5:56 PM
>>>>To:	Shirley Toh
>>>>Cc:	SER Users (E-mail)
>>>>Subject:	Re: FW: [Serusers] Rtpproxy
>>>>
>>>>You have to provide more information. Which clients (do they support 
>>>>symmetric RTP?). Take a look at SIP messages when they arive at the 
>>>>proxy and when they are forwarded and vrify that the messages are 
>>>>properly rewritten by the nathelper module.
>>>>
>>>>Check if there is any RTP traffic going to the RTPproxy and if it is 
>>>>forwarded to the proper IP address and port.
>>>>
>>>>regards,
>>>>Klaus
>>>>
>>>>Shirley Toh wrote:
>>>>
>>>>
>>>>
>>>>>Hi, 
>>>>>
>>>>>I am using the code below. When I am dialing through this scenario --->
>>>>>UA1(Symmetric NAT) ----> SER ---> UA2 (Symmetric NAT)
>>>>>. I hear no audio and I haev no error in my route. Please kindly advise
>>>>
>>>>is
>>>>
>>>>
>>>>>there something missing or I need to have extra components. I am using
>>>>
>>>>CVS
>>>>
>>>>
>>>>>rel_0.8.12 and latest rtpproxy!!! Help Help!!! 
>>>>>
>>>>>Regards, 
>>>>>Shirley
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>-----Original Message-----
>>>>>>From:	Shirley Toh 
>>>>>>Sent:	Wednesday, February 25, 2004 6:37 PM
>>>>>>To:	SER Users (E-mail)
>>>>>>Subject:	FW: [Serusers] Rtpproxy
>>>>>>
>>>>>>Hi 
>>>>>>
>>>>>>I have problem calling through UA behind Symmetric network? Please
>>>>
>>>>advice
>>>>
>>>>
>>>>>>any solution to this problem. Thank you!!!
>>>>>>
>>>>>>UA1(Symmetric NAT) ----> SER ---> UA2 (Symmetric NAT)
>>>>>>
>>>>>>Regards, 
>>>>>>Shirley
>>>>>>-----Original Message-----
>>>>>>From:	Shirley Toh 
>>>>>>Sent:	Tuesday, February 24, 2004 9:09 PM
>>>>>>To:	'Jan Janak'
>>>>>>Subject:	RE: [Serusers] Rtpproxy
>>>>>>
>>>>>>Hi, 
>>>>>>
>>>>>>Thank you for your answer.
>>>>>>
>>>>>>Can I check the latest module in CVS does it support to call from
>>>>>>Symmetric network to Symmetric network?Please help. If can what sgould
>>
>>I
>>
>>>>>>take note in the commands?
>>>>>>
>>>>>>Regards, 
>>>>>>Shirley
>>>>>>
>>>>>>-----Original Message-----
>>>>>>From:	Jan Janak [SMTP:jan at iptel.org]
>>>>>>Sent:	Tuesday, February 24, 2004 8:35 PM
>>>>>>To:	Shirley Toh
>>>>>>Cc:	SER Users (E-mail)
>>>>>>Subject:	Re: [Serusers] Rtpproxy
>>>>>>
>>>>>>You are calling force_rtp_proxy or fix_nated_sdp on a message with
>>
>>empty
>>
>>>>>>body. Make sure that you call the functions from the script only when
>>>>>>the message contains SDP body (usually INVITE and 200 OK).
>>>>>>
>>>>>>Jan.
>>>>>>
>>>>>>On 24-02 11:36, Shirley Toh wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hi, 
>>>>>>>
>>>>>>>Can anyone help me!! I am having this error on my log file when I try
>>>>
>>>>to
>>>>
>>>>
>>>>>>>make calls. I have attached my ser.cfg. Please help!! Thanks!!
>>>>>>>
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20404]: ERROR:
>>>>>>>send_rtpp_command: can't read reply from a RTP proxy
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR:
>>>>>>
>>>>>>extract_body:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>message body has lenght zero
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR:
>>>>>>>force_rtp_proxy: can't extract body from the message
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20413]: ERROR:
>>
>>on_reply
>>
>>>>>>>processing failed
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>>>>>
>>>>>>extract_body:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>message body has lenght zero
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>>>>>>force_rtp_proxy: can't extract body from the message
>>>>>>>Feb 24 11:29:54 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>
>>on_reply
>>
>>>>>>>processing failed
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>>>>>
>>>>>>extract_body:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>message body has lenght zero
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>>>>>>force_rtp_proxy: can't extract body from the message
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20417]: ERROR:
>>
>>on_reply
>>
>>>>>>>processing failed
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
>>>>>>
>>>>>>extract_body:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>message body has lenght zero
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
>>>>>>
>>>>>>fix_nated_sdp:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>cannot extract body from msg!
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
>>>>>>
>>>>>>extract_body:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>message body has lenght zero
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
>>>>>>>force_rtp_proxy: can't extract body from the message
>>>>>>>Feb 24 11:30:24 sipserver2 /usr/local/sbin/ser[20407]: ERROR:
>>
>>on_reply
>>
>>>>>>>processing failed
>>>>>>>
>>>>>>><<ser.cfg.txt>> 
>>>>>>>
>>>>>>>regards, 
>>>>>>>shirley
>>>>>>>
>>>>>>
>>>>>>>#
>>>>>>># $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 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
>>>>>>>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"
>>>>>>>mhomed=yes
>>>>>>>
>>>>>>># ------------------ 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/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"
>>>>>>>
>>>>>>># 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)
>>>>>>>
>>>>>>># -- Nathelper --
>>>>>>>modparam("registrar" , "nat_flag", 6)
>>>>>>>modparam("nathelper", "natping_interval", 60)
>>>>>>>modparam("nathelper", "ping_nated_only", 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 > max_len ) {
>>>>>>>              sl_send_reply("513", "Message too big");
>>>>>>>              break;
>>>>>>>      };
>>>>>>>
>>>>>>>
>>>>>>>      #!! Nathelper
>>>>>>>      if (nat_uac_test("3")){
>>>>>>>              if (method == "REGISTER"){
>>>>>>>                      log("LOG:Someone trying to register from
>>>>
>>>>private
>>>>
>>>>
>>>>>>IP, rewriting\n");
>>>>>>
>>>>>>
>>>>>>
>>>>>>>                      fix_nated_contact(); # Rewtite contact with
>>>>>>
>>>>>>source IP of signalling
>>>>>>
>>>>>>
>>>>>>
>>>>>>>                      if(method== "INVITE"){
>>>>>>>                              fix_nated_sdp("1"); # Add
>>>>>>
>>>>>>direction-active to SDP
>>>>>>
>>>>>>
>>>>>>
>>>>>>>                      };
>>>>>>>                      force_rport();
>>>>>>>                      setflag(6);
>>>>>>>              };
>>>>>>>      };
>>>>>>>
>>>>>>>      # 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("", "Connecting");
>>>>>>>                      break;
>>>>>>>              };
>>>>>>>      };
>>>>>>>      if (isflagset(6)){
>>>>>>>              force_rtp_proxy();
>>>>>>>      };
>>>>>>>      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();
>>>>>>>              break;
>>>>>>>      };
>>>>>>>
>>>>>>>}
>>>>>>>
>>>>>>># all incoming replies for t_onrepli-ed transactions enter here
>>>>>>>onreply_route[1] {
>>>>>>>      if (isflagset(6) && status=~"(183)|2[0-9][0-9]") {
>>>>>>>              fix_nated_contact();
>>>>>>>              fix_nated_sdp("1");
>>>>>>>              force_rtp_proxy();
>>>>>>>      }else if(nat_uac_test("1")){
>>>>>>>              fix_nated_contact();
>>>>>>>              force_rtp_proxy();
>>>>>>>      };
>>>>>>>
>>>>>>>}
>>>>>>
>>>>>>>_______________________________________________
>>>>>>>Serusers mailing list
>>>>>>>serusers at lists.iptel.org
>>>>>>>http://lists.iptel.org/mailman/listinfo/serusers
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>Serusers mailing list
>>>>>serusers at lists.iptel.org
>>>>>http://lists.iptel.org/mailman/listinfo/serusers
>>>>>
>>>>>
>>>
>>>
>>>
> 
> 




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