[OpenSIPS-Users] Help regarding Opensips Proxy
Răzvan Crainea
razvan at opensips.org
Thu Oct 22 08:55:04 EST 2020
What does "connect an agent" mean? Register on a specific asterisk
server? If so, you should be using the Path module[1] to add OpenSIPS as
an extra hop between the agent and Asterisk. An alternative is the Mid
registrar module[2], which can itself store the location of the agent,
and relay calls to it.
[1] https://opensips.org/docs/modules/3.1.x/path.html
[2] https://opensips.org/docs/modules/3.1.x/mid_registrar.html
Răzvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com
On 10/22/20 11:37 AM, Mihai wrote:
> Any hints about this?
>
> On Tue, Sep 29, 2020 at 4:46 PM Mihai <m at mokalife.ro
> <mailto:m at mokalife.ro>> wrote:
>
> Hi all,
>
> I need some help on getting to work my scenario:
>
> I have 3 asterisk servers, and, every agent is connecting to which
> server they need by contacting the PublicIP. (the problem is that I
> need to reuse the IP address on others servers) . I want if is
> possible to use Opensips as proxy, so that agents can connect to
> those asterisk servers by virtualhost (example.
> asterisk1.behindproxy.example, asterisk2.behindproxy.example ).
> Basically I want to proxy everything thru OpenSIPs.
>
>
> I am using centos 7 with the following packages installed:
> opensips-dialplan-module-3.1.0-1.el7.x86_64
> opensips-yum-releases-3.1-5.el7.noarch
> opensips-b2bua-module-3.1.0-1.el7.x86_64
> opensips-regex-module-3.1.0-1.el7.x86_64
> opensips-mysql-module-3.1.0-1.el7.x86_64
> opensips-3.1.0-1.el7.x86_64
>
>
>
> What I tried so far is this config, it dose send my users to
> required Asterisk servers, but on the asterisk server I don't see
> their IP ( i see the IP of the proxy) and that's it ....
> the dispatcher list is this from mysql:
>
> Any help is apreciated.
> +----+-------+----------------+--------+-------+--------+----------+-------+-------------+
> | id | setid | destination | socket | state | weight | priority |
> attrs | description |
> +----+-------+----------------+--------+-------+--------+----------+-------+-------------+
> | 1 | 1 | sip:172.16.0.2 | NULL | 2 | 1 | 0
> | | sip1 |
> | 2 | 2 | sip:172.16.0.3 | NULL | 2 | 1 | 0
> | | sip2 |
> | 3 | 3 | sip:172.16.0.4 | NULL | 2 | 1 | 0
> | | sip3 |
> +----+-------+----------------+--------+-------+--------+----------+-------+-------------+
>
>
> ####### Global Parameters #########
> #debug_mode=yes
> log_level=4
> log_stderror=no
> log_facility=LOG_LOCAL0
> udp_workers=4
> socket=udp:0.0.0.0:5060 <http://0.0.0.0:5060>
> ####### Modules Section ########
>
> #set module path
> mpath="/usr/lib64/opensips/modules"
>
> #### SIGNALING module
> loadmodule "signaling.so"
>
> loadmodule "db_mysql.so"
> loadmodule "db_text.so"
>
> #### StateLess module
> loadmodule "sl.so"
>
> #### Transaction Module
> loadmodule "tm.so"
> modparam("tm", "fr_timeout", 5)
> modparam("tm", "fr_inv_timeout", 30)
> modparam("tm", "restart_fr_on_each_reply", 0)
> modparam("tm", "onreply_avp_mode", 1)
>
> #### Record Route Module
> loadmodule "rr.so"
> modparam("rr", "append_fromtag", 0)
>
> #### MAX ForWarD module
> loadmodule "maxfwd.so"
>
> #### SIP MSG OPerationS module
> loadmodule "sipmsgops.so"
>
> #### FIFO Management Interface
> loadmodule "mi_fifo.so"
> modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
> modparam("mi_fifo", "fifo_mode", 0666)
>
> #### USeR LOCation module
> loadmodule "usrloc.so"
> modparam("usrloc", "nat_bflag", "NAT")
> modparam("usrloc", "working_mode_preset", "single-instance-no-db")
>
> #### REGISTRAR module
> loadmodule "registrar.so"
> modparam("registrar", "retry_after", 30)
>
> #### DIALOG module
> loadmodule "dialog.so"
> modparam("dialog", "enable_stats", 0)
> modparam("dialog", "hash_size", 1024)
> modparam("dialog", "log_profile_hash_size", 4)
> modparam("dialog", "default_timeout", 21600) # 6h
> modparam("dialog", "dlg_extra_hdrs", "Hint: credit expired\r\n")
> modparam("dialog", "dlg_match_mode", 0)
> modparam("dialog", "options_ping_interval", 20)
> modparam("dialog", "reinvite_ping_interval", 600)
>
> ### nat_traversal
> loadmodule "nat_traversal.so"
> modparam("nat_traversal", "keepalive_interval", 60)
> modparam("nat_traversal", "keepalive_method", "OPTIONS")
> modparam("nat_traversal", "keepalive_from",
> "sip:keepalive at opensips.proxy")
> modparam("nat_traversal", "keepalive_extra_headers", "User-Agent:
> OpenSIPS\r\nX-NAT: yes\r\n")
> modparam("nat_traversal", "keepalive_state_file",
> "/var/run/opensips/keepalive_state")
>
>
> ######################################################################
> ## Dispatcher Module Parameters
> ######################################################################
> loadmodule "dispatcher.so"
> #modparam("dispatcher", "list_file", "/etc/opensips/dispatcher.list")
> modparam("dispatcher", "db_url",
> "mysql://opensips:opensipsrw@localhost/opensips")
> modparam("dispatcher", "dst_avp", "$avp(271)")
> modparam("dispatcher", "attrs_avp", "$avp(272)")
> modparam("dispatcher", "grp_avp", "$avp(273)")
> modparam("dispatcher", "cnt_avp", "$avp(274)")
> modparam("dispatcher", "hash_pvar", "$avp(273)")
> modparam("dispatcher", "ds_ping_method", "OPTIONS")
> modparam("dispatcher", "ds_ping_from", "sip:sipcheck at opensips.proxy")
> modparam("dispatcher", "ds_ping_interval", 10)
> modparam("dispatcher", "ds_probing_threshhold", 3)
> modparam("dispatcher", "ds_probing_mode", 1)
> modparam("dispatcher", "options_reply_codes", "501,403,404,400,200")
>
> loadmodule "proto_udp.so"
>
> ####### Routing Logic ########
> # main request routing logic
>
> route{
>
> if (!mf_process_maxfwd_header(10)) {
> send_reply(483,"Max hops reached");
> exit;
> }
>
> if (has_totag()) {
>
> # handle hop-by-hop ACK (no routing required)
> if ( is_method("ACK") && t_check_trans() ) {
> t_relay();
> exit;
> }
>
> # sequential request within a dialog should
> # take the path determined by record-routing
> if ( !loose_route() ) {
> # we do record-routing for all our traffic, so we should not
> # receive any sequential requests without Route hdr.
> send_reply(404,"Not here");
> exit;
> }
>
> # route it out to whatever destination was set by loose_route()
> # in $du (destination URI).
> route(relay);
> exit;
> }
>
> # CANCEL processing
> if (is_method("CANCEL")) {
> if (t_check_trans())
> t_relay();
> exit;
> }
>
> # absorb retransmissions, but do not create transaction
> t_check_trans();
>
> if ( !(is_method("REGISTER") ) ) {
> if (is_myself("$fd")) {
> # do nothing
> } else {
> # if caller is not local, then called number must be local
> if (!is_myself("$rd")) {
> send_reply(403,"Relay Forbidden On: $si ");
> #send_reply(200,"Relay $fd ");
> exit;
> }
> }
>
> }
>
> # preloaded route checking
> if (loose_route()) {
> xlog("L_ERR",
> "Attempt to route with preloaded Route's [$fu/$tu/$ru/$ci]");
> if (!is_method("ACK"))
> send_reply(403,"Preload Route denied");
> exit;
> }
>
> # record routing
> if (!is_method("REGISTER|MESSAGE"))
> record_route();
>
> if (!is_myself("$rd")) {
> append_hf("P-hint: outbound\r\n");
> route(relay);
> }
>
> # requests for my domain
> if (is_method("PUBLISH|SUBSCRIBE")) {
> send_reply(503, "Service Unavailable");
> exit;
> }
>
> if (is_method("REGISTER")) {
> if (!save("location"))
> sl_reply_error();
>
> exit;
> }
>
> if ($rU==NULL) {
> # request with no Username in RURI
> send_reply(484,"Address Incomplete");
> exit;
> }
>
> # do lookup with method filtering
> if (!lookup("location","m")) {
> t_reply(404, "Not Found");
> exit;
> }
>
> route(relay);
> }
>
>
> route[relay] {
> # for INVITEs enable some additional helper routes
> if (is_method("INVITE")) {
> t_on_branch("per_branch_ops");
> t_on_reply("handle_nat");
> t_on_failure("missed_call");
> }
>
> if (!t_relay()) {
> send_reply(500,"Internal Error");
> }
> exit;
>
>
> switch ($fd){
> case "asterisk1.example.com <http://asterisk1.example.com>":
> if (!ds_select_dst(1, 0)) {
> log("ERROR: no active destinations found!\n");
> send_reply(503, "Service Unavailable");
> exit;
> }
> ds_select_dst(1, 8, "ud", "default", 1);
> break;
> case "asterisk1.example.com <http://asterisk1.example.com>":
> if (!ds_select_dst(2, 0)) {
> log("ERROR: no active destinations found!\n");
> send_reply(503, "Service Unavailable");
> exit;
> }
> ds_select_dst(2, 8, "ud", "default", 1);
> break;
> case "asterisk1.example.com <http://asterisk1.example.com>":
> if (!ds_select_dst(3, 0)) {
> log("ERROR: no active destinations found!\n");
> send_reply(503, "Service Unavailable");
> exit;
> }
> ds_select_dst(3, 8, "ud", "default", 1);
> log("---- flag value is $dd -- branch $fd \n");
> break;
> default:
> log("unknow destination");
> exit;
> }
> }
>
>
>
>
> branch_route[per_branch_ops] {
> xlog("new branch at $ru\n");
> }
>
>
> onreply_route[handle_nat] {
> xlog("incoming reply\n");
> }
>
>
> failure_route[missed_call] {
> if (t_was_cancelled()) {
> exit;
> }
> }
>
>
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