[Serusers] Please, help with SUBSCRIBE timeouts

Hi, This is my 3rd email on this issue.. Please, help me with it. I am having the problem with SUBSCRIBE requests in ser 0.9.3. I am not using PA module, because my PA and Watcher are located on the client side. Whenever I try to subscribe to a presence with any entity OTHER than myself, SER seems to receive the SUBSCRIBE request, however, it does not forward it. Instead my application keeps on retransmitting SUBSCRIBEs until SER replies with 408 Timeout... The same things happen with NOTIFYs. I must also mention that it is NOT all the time that SER replies with timeout... Just most of the times. And only sometimes it lets the SUBSCRIBE through (for that, I have to restart my app. again and again, until I get the right result). I included ser.cfg + traces. I've tried to use stateless forwarding ( forward(uri:host, uri:port) ) instead of stateful (as shown in my ser.cfg), but it didnt work either. Please, tell me what is wrong, because I'm out of ideas here... I would settle even for reinstalling SER, if it's necessary. Here's ser.cfg: # ----------- 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" fifo_mode=0766 sip_warning=yes server_signature=yes alias=sip.interlab.ait.ac.th # ------------------ 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/auth.so" loadmodule "/usr/local/lib/ser/modules/auth_db.so" loadmodule "/usr/local/lib/ser/modules/uri.so" loadmodule "/usr/local/lib/ser/modules/uri_db.so" loadmodule "/usr/local/lib/ser/modules/exec.so" loadmodule "/usr/local/lib/ser/modules/pa.so" # ----------------- setting module-specific parameters --------------- modparam("usrloc", "db_mode", 2) modparam("auth_db", "calculate_ha1", yes) modparam("auth_db", "password_column", "password") modparam("rr", "enable_full_lr", 1) # ------------------------- request routing logic ------------------- route{ # initial sanity checks -- messages with # max_forwards==0, or excessively long requests if (!mf_process_maxfwd_header("10")) { log(1, "Message has too many hops. Message disgarted"); sl_send_reply("483","Too Many Hops"); break; }; if (msg:len >= 4096 ) { log(1, "Message too big. Message disgarted"); sl_send_reply("513", "Message too big"); break; }; #if (method!="REGISTER" ) record_route(); #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 (uri==myself) { if (method=="REGISTER") { if (!www_authorize("sip.interlab.ait.ac.th", "subscriber")) { log(1, "Authentication for REGISTER"); www_challenge("sip.interlab.ait.ac.th", "0"); break; }; #if(!is_user("replicator") & !check_to() ){ # log(1, "Unregistered user registration attempt\n"); # sl_send_reply("403", "Forbidden - Registered users only"); # break; #}; if(!save("location")) { log(1, "Error saving AOR"); sl_reply_error(); }; break; }; lookup("aliases"); if (uri!=myself) { append_hf("P-hint: outbound alias\r\n"); route(1); break; }; #Handle local offline or non-existent users if(method=="INVITE") { if(!lookup("location") ) { log(1, "INVITE for an offline user processing"); route(3); #offline and non-existent users break; }; }; if(method=="SUBSCRIBE") { if (!www_authorize("sip.interlab.ait.ac.th", "subscriber")) { log(1, "Authentication for SUBSCRIBE"); www_challenge("sip.interlab.ait.ac.th", "0"); break; }; if(!lookup("location") ) { log(1, "No registered user found for SUBSCRIBE"); sl_send_reply("404", "Not Found"); break; }; }; # native SIP destinations are handled using our USRLOC DB if(method=="NOTIFY") { if (!lookup("location")) { sl_send_reply("404", "Not Found"); break; }; log(1, "NOTIFY reveived"); }; }; append_hf("P-hint: usrloc applied\r\n"); route(1); } route[1] { # send it out now; use stateful forwarding as it works reliably # even for UDP2TCP if (!t_relay()) { sl_reply_error(); }; } # ------------ Process offline and non-existent users ---------- route[3] { # do not continue if it is a retransmission if(!t_newtran()) { sl_reply_error(); break; }; # use external script to send an email notification in case # user is offline, or just reply back with 404 (Not Found) if # the user is not a registered user if(!exec_msg('/home/andrey/sip_email.sh') ) { t_reply("404", "Not Found - User does not exist"); } else { t_reply("404", "Not Found - User offline"); }; break; } . . . . . . . . Here are the traces: Message 1 from 203.159.32.39:5060 to 203.159.31.36:5060 SUBSCRIBE sip:12345@sip.interlab.ait.ac.th SIP/2.0 Call-ID: 7762edc6f3954c87c8b95a0270653250(a)203.159.32.39 CSeq: 1 SUBSCRIBE From: "Andrey Kuprianov" <sip:andrey@sip.interlab.ait.ac.th>;tag=15493888 To: <sip:12345@sip.interlab.ait.ac.th> Via: SIP/2.0/UDP 203.159.32.39:5060;branch=z9hG4bK3ad443c5b49de4b050bd2b028597a868 Max-Forwards: 70 Allow: REGISTER,INVITE,BYE,ACK,CANCEL,SUBSCRIBE,NOTIFY,MESSAGE User-Agent: IntERLab User Agent 1.0a Event: presence Expires: 600 Accept: application/pidf+xml,application/xpidf+xml,application/xvcresource+xml Contact: <sip:andrey@203.159.32.39:5060> Content-Length: 0 Message 2 from 203.159.31.36:5060 to 203.159.32.39:5060 SIP/2.0 401 Unauthorized Call-ID: 7762edc6f3954c87c8b95a0270653250(a)203.159.32.39 CSeq: 1 SUBSCRIBE From: "Andrey Kuprianov" <sip:andrey@sip.interlab.ait.ac.th>;tag=15493888 To: <sip:12345@sip.interlab.ait.ac.th>;tag=1a5a85ff3e08e000f4c2527642cf14ac.5e75 Via: SIP/2.0/UDP 203.159.32.39:5060;branch=z9hG4bK3ad443c5b49de4b050bd2b028597a868 WWW-Authenticate: Digest realm="sip.interlab.ait.ac.th",nonce="439ee222efefefbb8cbb78e75d6d15b723a1e1d0" Server: Sip EXpress router (0.9.3 (i386/freebsd)) Warning: 392 203.159.31.36:5060 "Noisy feedback tells: pid=17754 req_src_ip=203.159.32.39 req_src_port=5060 in_uri=sip:12345@sip.interlab.ait.ac.th out_uri=sip:12345@sip.interlab.ait.ac.th via_cnt==1" Content-Length: 0 Message 3 from 203.159.32.39:5060 to 203.159.31.36:5060 SUBSCRIBE sip:12345@sip.interlab.ait.ac.th SIP/2.0 Call-ID: 7762edc6f3954c87c8b95a0270653250(a)203.159.32.39 CSeq: 2 SUBSCRIBE To: <sip:12345@sip.interlab.ait.ac.th> Via: SIP/2.0/UDP 203.159.32.39:5060;branch=z9hG4bK991c906a283ca5d57e8856c98097e81c Max-Forwards: 70 Allow: REGISTER,INVITE,BYE,ACK,CANCEL,SUBSCRIBE,NOTIFY,MESSAGE User-Agent: IntERLab User Agent 1.0a Event: presence Expires: 600 Accept: application/pidf+xml,application/xpidf+xml,application/xvcresource+xml Contact: <sip:andrey@203.159.32.39:5060> Authorization: Digest username="andrey",realm="sip.interlab.ait.ac.th",nonce="439ee222efefefbb8cbb78e75d6d15b723a1e1d0",uri="sip:12345@sip.interlab.ait.ac.th",response="1c7fa7ceb1f654d0e2ea91c54823bb8d" From: "Andrey Kuprianov" <sip:andrey@sip.interlab.ait.ac.th>;tag=15493888 Content-Length: 0 Message 4 from 203.159.32.39:5060 to 203.159.31.36:5060 SUBSCRIBE sip:12345@sip.interlab.ait.ac.th SIP/2.0 Call-ID: 7762edc6f3954c87c8b95a0270653250(a)203.159.32.39 CSeq: 2 SUBSCRIBE To: <sip:12345@sip.interlab.ait.ac.th> Via: SIP/2.0/UDP 203.159.32.39:5060;branch=z9hG4bK991c906a283ca5d57e8856c98097e81c Max-Forwards: 70 Allow: REGISTER,INVITE,BYE,ACK,CANCEL,SUBSCRIBE,NOTIFY,MESSAGE User-Agent: IntERLab User Agent 1.0a Event: presence Expires: 600 Accept: application/pidf+xml,application/xpidf+xml,application/xvcresource+xml Contact: <sip:andrey@203.159.32.39:5060> Authorization: Digest username="andrey",realm="sip.interlab.ait.ac.th",nonce="439ee222efefefbb8cbb78e75d6d15b723a1e1d0",uri="sip:12345@sip.interlab.ait.ac.th",response="1c7fa7ceb1f654d0e2ea91c54823bb8d" From: "Andrey Kuprianov" <sip:andrey@sip.interlab.ait.ac.th>;tag=15493888 Content-Length: 0 Message 5 from 203.159.32.39:5060 to 203.159.31.36:5060 SUBSCRIBE sip:12345@sip.interlab.ait.ac.th SIP/2.0 Call-ID: 7762edc6f3954c87c8b95a0270653250(a)203.159.32.39 CSeq: 2 SUBSCRIBE To: <sip:12345@sip.interlab.ait.ac.th> Via: SIP/2.0/UDP 203.159.32.39:5060;branch=z9hG4bK991c906a283ca5d57e8856c98097e81c Max-Forwards: 70 Allow: REGISTER,INVITE,BYE,ACK,CANCEL,SUBSCRIBE,NOTIFY,MESSAGE User-Agent: IntERLab User Agent 1.0a Event: presence Expires: 600 Accept: application/pidf+xml,application/xpidf+xml,application/xvcresource+xml Contact: <sip:andrey@203.159.32.39:5060> Authorization: Digest username="andrey",realm="sip.interlab.ait.ac.th",nonce="439ee222efefefbb8cbb78e75d6d15b723a1e1d0",uri="sip:12345@sip.interlab.ait.ac.th",response="1c7fa7ceb1f654d0e2ea91c54823bb8d" From: "Andrey Kuprianov" <sip:andrey@sip.interlab.ait.ac.th>;tag=15493888 Content-Length: 0 . . . . . . And so it goes, until SER replies with Timeout. Can you tell me what is wrong??? Andrey.