Hi Geger,
I have tried your method on the rtpproxy is saying that -i command is not found. I am running rtpproxy in the same system as ser. I have attached my ser.cfg file.... Please help....
Regards, Nicky ----- Original Message ----- From: "Greger V. Teigre" greger@teigre.com To: "Nicky" nicky@caliber.com.sg Cc: serusers@lists.iptel.org Sent: Tuesday, November 30, 2004 9:56 PM Subject: Re: [Serusers] PSTN
Nicky, I'm not sure I understand your setup and problem, but I assume you run rtpproxy in bridge mode? Could you please describe your setup and post your config file? A blind shot based on the ser.cfg in this thread: t_on_reply("1"); should be called before any t_relay. g-)
Nicky wrote:
Hi Geger,
Thank you for your reply. My rtpproxy is not behind NAT. how can I make the c=IP4 not to be rewritten by the nathelper? I do my rtpproxy commands like this :~ rtpproxy -2fv -l public_ip public_ip....is this correct?
Regards, Nicky ----- Original Message ----- From: "Greger V. Teigre" greger@teigre.com To: "Nicky" nicky@caliber.com.sg; "Kapil Dhawan" sersavvy@hotmail.com; zeus.ng@isquare.com.au Cc: serusers@lists.iptel.org Sent: Tuesday, November 30, 2004 8:40 PM Subject: Re: [Serusers] PSTN
Nicky, You have your rtp proxy behind a NAT? If so, no wonders you have problems making the RTP streams flow. The IP address in the c=IP4 is rewritten by nathelper, but it is received from the rtpproxy. I attach a small patch that adds -i parameter to rtpproxy where you can define your public IP address of rtpproxy: rtpproxy -l internal_address -i public_ip. It is against the cvs version at http://cvs.berlios.de/cgi-bin/viewcvs.cgi/ser/rtpproxy/
Hope it helps, Greger
Nicky wrote:
Hi ,
i am facing the same problem, can advice where you add the t_on_reply("1") to make the PSTN have audio. I have another problem I want to send public address instead of NAT address in the c=IP4 function in the SDP message, anyone done this before, i am a newbie I am problem in trying to code it. Please help. Thanks in advance.....
Regards, nicky ----- Original Message ----- From: "Kapil Dhawan" sersavvy@hotmail.com To: zeus.ng@isquare.com.au Cc: serusers@lists.iptel.org Sent: Wednesday, June 02, 2004 12:19 PM Subject: RE: [Serusers] PSTN
exactly...you are right...i was skipping it somehow and now working ok....
From: "Zeus Ng" zeus.ng@isquare.com.au To: "Kapil Dhawan" sersavvy@hotmail.com CC: serusers@lists.iptel.org Subject: RE: [Serusers] PSTN Date: Wed, 2 Jun 2004 11:42:07 +1000 (EST)
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 aconfiguration # 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@hotmail.com > To: sersavvy@hotmail.com > CC: serusers@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@hotmail.com >> To: serusers@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 > Buy and Sell on MSN Classifieds. >> >> _______________________________________________ >> Serusers mailing list >> serusers@lists.iptel.org >> http://lists.iptel.org/mailman/listinfo/serusers >
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