[Serusers] PSTN
Zeus Ng
zeus.ng at isquare.com.au
Wed Jun 2 03:42:07 CEST 2004
You should do the t_on_reply("1") for PSTN call as well. I hope the other
thread you mentioned about solving the problem is what I said here.
Zeus
> Hi List
>
> I am still unable to solve this issue why the my NAT user is unable to
> hear
> when he makes a PSTn call..
>
> # ----------- global configuration parameters ------------------------
>
> debug=8 # debug level (cmd line: -dddddddddd)
> fork=yes
> log_stderror=yes # (cmd line: -E)
>
> 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"
>
> # 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"
>
> # !! Nathelper
> loadmodule "/usr/local/lib/ser/modules/nathelper.so"
>
> # !! Accounting
> loadmodule "/usr/local/lib/ser/modules/acc.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
> # -- nathelper params --
> modparam("registrar", "nat_flag", 6)
> modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
> modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind
> NAT
>
> # !! Accounting
> # -- acc params --
> # set the reporting log level
> modparam("acc", "log_level", 2) # Set log_level to 2
> # number of flag, which will be used for accounting; if a message is
> # labeled with this flag, its completion status will be reported
> modparam("acc", "log_flag", 1 )
> modparam("acc", "log_missed_flag", 2)
> modparam("acc", "failed_transactions", 1)
> modparam("acc", "report_cancels", 1)
> modparam("acc", "db_url", "mysql://ser:heslo@localhost/ser")
> modparam("acc", "db_flag", 1)
> modparam("acc", "db_missed_flag", 2)
>
> # ------------------------- 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
> # Special handling for NATed clients; first, NAT test is
> # executed: it looks for via!=received and RFC1918 addresses
> # in Contact (may fail if line-folding is used); also,
> # the received test should, if completed, should check all
> # vias for rpesence of received
> if (nat_uac_test("3")) {
> # Allow RR-ed requests, as these may indicate that
> # a NAT-enabled proxy takes care of it; unless it is
> # a REGISTER
>
> if (method == "REGISTER" || ! search("^Record-Route:")) {
> log("LOG: Someone trying to register from private IP, rewriting\n");
>
> # This will work only for user agents that support symmetric
> # communication. We tested quite many of them and majority is
> # smart enough to be symmetric. In some phones it takes a
> configuration
> # option. With Cisco 7960, it is called NAT_Enable=Yes, with kphone
> it
> is
> # called "symmetric media" and "symmetric signalling".
>
> fix_nated_contact(); # Rewrite contact with source IP of signalling
> if (method == "INVITE") {
> fix_nated_sdp("1"); # Add direction=active to SDP
> };
> force_rport(); # Add rport parameter to topmost Via
> setflag(6); # Mark as NATed
> };
> };
>
> # labeled all transaction for accounting
> setflag(1);
> setflag(2);
>
> # 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();
>
> # 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("1.1.1.1","subscriber")) {
> www_challenge("1.1.1.1", "0");
> break;
> };
>
> save("location");
> break;
> };
>
> if(uri=~"^sip:00*"){
> append_hf("P-hint: PSTN call\r\n");
> route(1);
> 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]
> {
> # !! Nathelper
> if (uri=~"[@:](192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)" &&
> !search("^Route:")){
> sl_send_reply("479", "We don't forward to private IP addresses");
> break;
> };
>
> # if client or server know to be behind a NAT, enable relay
> if (isflagset(6)) {
> force_rtp_proxy();
> };
>
> if(uri=~"^sip:00*"){
> rewritehost("2.2.2.2");
> t_relay_to_udp("2.2.2.2","5060");
> break;
> };
>
> # NAT processing of replies; apply to all transactions (for example,
> # re-INVITEs from public to private UA are hard to identify as
> # NATed at the moment of request processing); look at replies
> t_on_reply("1");
>
> # send it out now; use stateful forwarding as it works reliably
> # even for UDP2TCP
> if (!t_relay()) {
> sl_reply_error();
> };
> }
>
> # !! Nathelper
> onreply_route[1] {
> # NATed transaction ?
> if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
> fix_nated_contact();
> force_rtp_proxy();
> # otherwise, is it a transaction behind a NAT and we did not
> # know at time of request processing ? (RFC1918 contacts)
> } else if (nat_uac_test("1")) {
> fix_nated_contact();
> };
> }
>
>
>
>
>
>
>
>>From: "Kapil Dhawan" <sersavvy at hotmail.com>
>>To: sersavvy at hotmail.com
>>CC: serusers at lists.iptel.org
>>Subject: RE: [Serusers] PSTN
>>Date: Tue, 01 Jun 2004 05:02:54 +0000
>>
>>Hi my second part is done...i have used t_relay_to_udp rather than
>> forward
>>for pstn calls and now logs are coming....for pstn as well
>>
>>but first is till not done.
>>
>> >From: "Kapil Dhawan" <sersavvy at hotmail.com>
>> >To: serusers at lists.iptel.org
>> >Subject: [Serusers] PSTN
>> >Date: Tue, 01 Jun 2004 00:59:07 +0000
>> >
>> >Hi List
>> >
>> >I am running rtpproxy and nathelper which is fine for me...but when i
>>transfer all calls starting with 00 to my SIP gateway...then person
>> calling
>>from public IP is able to hear properly the pstn call and person calling
>>behind NAT can not hear but the pstn callee can hear that behind NAT
>> guy...
>> >
>> >and second is i am storing logs in acc table...there is i make a
>> SIP-SIP
>>call, i get proper logs but if i make PSTN call whether from public or
>>private IP, i only get BYE record..
>> >
>> >below is my ser.cfg
>> >
>> >
>> >#
>> ># $Id: nathelper.cfg,v 1.1.2.1 2003/11/24 14:47:18 janakj Exp $
>> >#
>> ># simple quick-start config script including nathelper support
>> >
>> ># This default script includes nathelper support. To make it work
>> ># you will also have to install Maxim's RTP proxy. The proxy is
>> enforced
>> ># if one of the parties is behind a NAT.
>> >#
>> ># If you have an endpoing in the public internet which is known to
>> ># support symmetric RTP (Cisco PSTN gateway or voicemail, for example),
>> ># then you don't have to force RTP proxy. If you don't want to enforce
>> ># RTP proxy for some destinations than simply use t_relay() instead of
>> ># route(1)
>> >#
>> ># Sections marked with !! Nathelper contain modifications for nathelper
>> >#
>> ># NOTE !! This config is EXPERIMENTAL !
>> >#
>> ># ----------- global configuration parameters ------------------------
>> >
>> >debug=8 # debug level (cmd line: -dddddddddd)
>> >fork=yes
>> >log_stderror=yes # (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"
>> >
>> ># 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"
>> >
>> ># !! Nathelper
>> >loadmodule "/usr/local/lib/ser/modules/nathelper.so"
>> >
>> ># !! Accounting
>> >loadmodule "/usr/local/lib/ser/modules/acc.so"
>> >
>> ># !! Voicemail And Conference
>> >loadmodule "/usr/local/lib/ser/modules/vm.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
>> ># -- nathelper params --
>> >modparam("registrar", "nat_flag", 6)
>> >modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
>> >modparam("nathelper", "ping_nated_only", 1) # Ping only clients
>> behind
>>NAT
>> >
>> ># !! Accounting
>> ># -- acc params --
>> ># set the reporting log level
>> >modparam("acc", "log_level", 2) # Set log_level to 2
>> ># number of flag, which will be used for accounting; if a message is
>> ># labeled with this flag, its completion status will be reported
>> >modparam("acc", "log_flag", 1 )
>> >modparam("acc", "log_missed_flag", 2)
>> >modparam("acc", "failed_transactions", 1)
>> >modparam("acc", "report_cancels", 1)
>> >modparam("acc", "db_url", "mysql://ser:heslo@localhost/ser")
>> >modparam("acc", "db_flag", 1)
>> >modparam("acc", "db_missed_flag", 2)
>> >
>> ># !! Transaction
>> ># -- tm params --
>> >modparam("tm", "fr_inv_timer", 200)
>> >
>> ># ------------------------- 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
>> > # Special handling for NATed clients; first, NAT test is
>> > # executed: it looks for via!=received and RFC1918 addresses
>> > # in Contact (may fail if line-folding is used); also,
>> > # the received test should, if completed, should check all
>> > # vias for rpesence of received
>> > if (nat_uac_test("3")) {
>> > # Allow RR-ed requests, as these may indicate that
>> > # a NAT-enabled proxy takes care of it; unless it is
>> > # a REGISTER
>> >
>> > if (method == "REGISTER" || ! search("^Record-Route:")) {
>> > log("LOG: Someone trying to register from private IP,
>>rewriting\n");
>> >
>> > # This will work only for user agents that support symmetric
>> > # communication. We tested quite many of them and majority is
>> > # smart enough to be symmetric. In some phones it takes a
>>configuration
>> > # option. With Cisco 7960, it is called NAT_Enable=Yes, with
>> kphone
>>it is
>> > # called "symmetric media" and "symmetric signalling".
>> >
>> > fix_nated_contact(); # Rewrite contact with source IP of
>> signalling
>> > if (method == "INVITE") {
>> > fix_nated_sdp("1"); # Add direction=active to SDP
>> > };
>> > force_rport(); # Add rport parameter to topmost Via
>> > setflag(6); # Mark as NATed
>> > };
>> > };
>> >
>> > # labeled all transaction for accounting
>> > setflag(1);
>> > setflag(2);
>> >
>> > # 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();
>> >
>> > # 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("220.226.42.185","subscriber")) {
>> > www_challenge("220.226.42.185", "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]
>> >{
>> > # !! Nathelper
>> > if (uri=~"[@:](192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)" &&
>>!search("^Route:")){
>> > sl_send_reply("479", "We don't forward to private IP addresses");
>> > break;
>> > };
>> >
>> > # if client or server know to be behind a NAT, enable relay
>> > if (isflagset(6)) {
>> > force_rtp_proxy();
>> > };
>> >
>> > # NAT processing of replies; apply to all transactions (for example,
>> > # re-INVITEs from public to private UA are hard to identify as
>> > # NATed at the moment of request processing); look at replies
>> > t_on_reply("1");
>> >
>> > if(uri=~"^sip:00*")
>> > {
>> > rewritehost();
>> > forward()
>> > break;
>> > };
>> >
>> > # send it out now; use stateful forwarding as it works reliably
>> > # even for UDP2TCP
>> > if (!t_relay()) {
>> > sl_reply_error();
>> > };
>> >}
>> >
>> ># !! Nathelper
>> >onreply_route[1] {
>> > # NATed transaction ?
>> > if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") {
>> > fix_nated_contact();
>> > force_rtp_proxy();
>> > # otherwise, is it a transaction behind a NAT and we did not
>> > # know at time of request processing ? (RFC1918 contacts)
>> > } else if (nat_uac_test("1")) {
>> > fix_nated_contact();
>> > };
>> >}
>> >
>> >_________________________________________________________________
>> >Post Classifieds on MSN classifieds.
>> http://go.msnserver.com/IN/44045.asp
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>> >
>> >_______________________________________________
>> >Serusers mailing list
>> >serusers at lists.iptel.org
>> >http://lists.iptel.org/mailman/listinfo/serusers
>>
>
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