[SR-Users] Simplest config possible [cont]
Daniel-Constantin Mierla
miconda at gmail.com
Mon Oct 6 10:11:31 CEST 2014
Hello,
On 05/10/14 17:51, White, Phil wrote:
> Hi All,
>
> I've had an 'interesting' weekend reading RFCs and playing with
> kamailio. I'm making progress - however, I would be grateful for a
> little clarification.
>
> I have sorted out a very basic stateless redirect proxy (config file
> below). I have cut it down to the absolute basic minimum - and it
> mostly appears to do what I would expect it to do. It does allow me to
> call any registered extension from my SIP softphone.
>
> Problem 1: I have a Grandstream Budgetone 200, which will happily
> receive calls, but will not initiate any. Looking at a ngrep, it is
> ignoring the redirect, and sends out a flood of UDP INVITEs (also see
> below for details)
> Question: Is this the fault of my configuration, or the Grandstream
> behaving incorrectly?
>
> Problem 2: I am having difficulty in working out which module and
> command I require to perform a function. Could someone please indicate
> the INVITE route in this file for a stateful proxy?
for 2, look at kamailio-basic.cfg, it is a stateful proxy
implementations (plus some few other features).
Cheers,
Daniel
>
> Many thanks,
>
> Phil
>
> ---
> ## WARNING - DO NOT USE THIS IN A PRODUCTION SERVER. FOR TESTING & EDUCTION ONLY
>
> debug=2
> fork=no
> log_stderror=yes
>
> listen=192.168.1.254:5060 <http://192.168.1.254:5060>
>
> ####### Modules Section ########
>
> mpath="/usr/lib/kamailio/modules/"
> loadmodule "pv.so"
> loadmodule "sl.so"
> loadmodule "usrloc"
> modparam("usrloc", "db_mode", 0)
> loadmodule "xlog.so"
> loadmodule "registrar.so"
>
> ####### Routing Logic ########
>
> route{
> if(method=="REGISTER") {
> if (!save("location")) {
> xlog("L_ERR", "**REGISTER: save failed \n");
> sl_reply_error();
> } else {
> xlog("L_NOTICE", " REGISTER rcvd $si:$sp \n");
> };
> };
>
> if(method=="INVITE") {
> lookup("location");
> switch ($retcode) {
> case -1:
> case -3:
> sl_send_reply("404", "Not Found");
> exit;
> case -2:
> sl_send_reply("405", "Not Found");
> exit;
> };
> sl_send_reply("302","Redirect");
> };
>
> if(method=="PUBLISH" || method=="SUBSCRIBE"){
> xlog("L_INFO","REJECTION. We do not process $rm requests. \n");
> route(No);
> };
> }
> route[No] {
> sl_send_reply(503, "Service Unavailable");
> }
>
> ---
>
> U 2014/10/05 16:38:04.925388 192.168.123.16:5060
> <http://192.168.123.16:5060> -> 192.168.123.254:5060
> <http://192.168.123.254:5060>
> INVITE
> sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP
> SIP/2.0.
> Via: SIP/2.0/UDP 192.168.123.16:5060;branch=z9hG4bKaf202530a743a053.
> From: "01782478349" <sip:111 at 192.168.123.254
> <mailto:sip%3A111 at 192.168.123.254>;user=phone>;tag=905632682e68e9b5.
> To:
> <sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP>.
> Contact: <sip:111 at 192.168.123.16:5060;transport=udp;user=phone>.
> Supported: replaces, timer, 100rel, path.
> Session-Expires: 180.
> Min-SE: 90.
> Call-ID: 358a9652404b14ad at 192.168.123.16
> <mailto:358a9652404b14ad at 192.168.123.16>.
> CSeq: 63317 INVITE.
> User-Agent: Grandstream BT200 1.1.6.32.
> Max-Forwards: 70.
> Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK.
> Content-Type: application/sdp.
> Content-Length: 407.
> <...SNIP...>
> U 2014/10/05 16:38:04.925895 192.168.123.254:5060
> <http://192.168.123.254:5060> -> 192.168.123.16:5060
> <http://192.168.123.16:5060>
> SIP/2.0 302 Redirect.
> Via: SIP/2.0/UDP
> 192.168.123.16:5060;branch=z9hG4bKaf202530a743a053;rport=5060.
> From: "01782478349" <sip:111 at 192.168.123.254
> <mailto:sip%3A111 at 192.168.123.254>;user=phone>;tag=905632682e68e9b5.
> To:
> <sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP>;tag=71d9875c03b727cbe0217d2db6ac2a49.422e.
> Call-ID: 358a9652404b14ad at 192.168.123.16
> <mailto:358a9652404b14ad at 192.168.123.16>.
> CSeq: 63317 INVITE.
> Contact:
> <sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP>.
> Server: My SIP Server.
> Content-Length: 0.U 2014/10/05 16:38:04.954405 192.168.123.16:5060
> <http://192.168.123.16:5060> -> 192.168.123.254:5060
> <http://192.168.123.254:5060>
> ACK
> sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP
> SIP/2.0.
> Via: SIP/2.0/UDP 192.168.123.16:5060;branch=z9hG4bKaf202530a743a053.
> From: "01782478349" <sip:111 at 192.168.123.254
> <mailto:sip%3A111 at 192.168.123.254>;user=phone>;tag=905632682e68e9b5.
> To:
> <sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP>;tag=71d9875c03b727cbe0217d2db6ac2a49.422e.
> Contact: <sip:111 at 192.168.123.16:5060;transport=udp;user=phone>.
> Supported: path.
> Call-ID: 358a9652404b14ad at 192.168.123.16
> <mailto:358a9652404b14ad at 192.168.123.16>.
> CSeq: 63317 ACK.
> User-Agent: Grandstream BT200 1.1.6.32.
> Max-Forwards: 70.
> Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK.
> Content-Length: 0.
> .
>
> U 2014/10/05 16:38:04.975398 192.168.123.16:5060
> <http://192.168.123.16:5060> -> 192.168.123.254:5060
> <http://192.168.123.254:5060>
> INVITE
> sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP
> SIP/2.0.
> Via: SIP/2.0/UDP 192.168.123.16:5060;branch=z9hG4bKa55f284fa742ad32.
> From: "01782478349" <sip:111 at 192.168.123.254
> <mailto:sip%3A111 at 192.168.123.254>;user=phone>;tag=9a25392722276c54.
> To:
> <sip:105 at 192.168.123.10:58833;rinstance=0d82c786ca88f460;transport=UDP>.
> Contact: <sip:111 at 192.168.123.16:5060;transport=udp;user=phone>.
> Supported: replaces, timer, 100rel, path.
> Session-Expires: 180.
> Min-SE: 90.
> Call-ID: f2989990cfa8525c at 192.168.123.16
> <mailto:f2989990cfa8525c at 192.168.123.16>.
> CSeq: 1445 INVITE.
> User-Agent: Grandstream BT200 1.1.6.32.
> Max-Forwards: 70.
> Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK.
> Content-Type: application/sdp.
> Content-Length: 407.
> .
> .
> . etc...
>
>
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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