[OpenSER-Users] OpenSerand RTPProxy, no RTP audio
Robert Dyck
rob.dyck at telus.net
Fri Feb 15 22:23:26 CET 2008
The example script you are using and maybe all the example scripts were
written from the perspective of a service provider. The idea is to detect
users who had to pass through a NAT to reach openser. The contact information
that these users provide cannot be relied upon so openser needs to work
around the misinformation. The NAT is of no concern when calling between
local phones.
In my case I use openser as an ALG and for local calling. I make no attempt to
test whether any user is behind a NAT. A local origination is determined by
# Check if package originates from LAN
if (src_ip==192.168.1.0/255.255.255.0)
{
}
else
{
}
Is this generally what you are trying to accomplish?
On Friday 15 February 2008, Eric Phetteplace wrote:
> Hi Robert,
>
> I placed a call from 2.3 to 2.5(gail) to observe the traffic.
> Then I place a call from 2.3 to gail at 2.10 to observe the traffic through
> openser.
>
> For the network topology, it's all on the same local network. I tried the
> default cfg file and it works fine. I'll try adjusting nat_uac_test, as
> it's not recognizing I'm on the local network.
>
> All set,
> Thanks!
>
> -----Original Message-----
> From: Robert Dyck
> Sent: Thursday, February 14, 2008 9:49 PM
> To: users at lists.openser.org
> Cc: Eric Phetteplace
> Subject: Re: [OpenSER-Users] OpenSerand RTPProxy, no RTP audio
>
> The pro's seem to be busy so I'll give it a go.
>
> If gail == 2.5 then a call from 2.5 to gail does not make much sense but
> maybe
> it was a typo.
>
> You did not say anything about your topology. Where were expecting to find
> the
> RTP packets?
>
> uac test 19 ( really 16+2+1 ) maybe isn't really what you want. Check the
> nathelper documentation. Among other things it will check for a private
> address. If you have local to local calls, there is no NAT involved.
> Sending
>
> the RTP through a proxy is unnecessary. It probably would work though.
>
> On Thursday 14 February 2008, Eric Phetteplace wrote:
> > Hello,
> >
> > Following
>
> http://www.voip-info.org/wiki/index.php?page=OpenSER%20v1.2.x%20and%20RTPPr
>
> >o xy and cleaning up the errors in the log, I have OpenSER 1.3 and
> > RTPProxy running in my local domain (192.168.2.10)
> >
> > I have two SIP phones in my local domain, on two machines. (2.5 and 2.3)
> >
> > I added an alias via openserctl ul add gail sip:192.168.2.5
> >
> > Looking at the packets captured from a call between 2.5 and 2.3, 2.3
>
> should
>
> > start streaming RTP packets after it ACKs the 200 from 2.5
> >
> > I call from 192.168.2.5 to gail at 192.168.2.10 and the connection is
> > established between the three, but no RTP streams ever begin. I expected
> > to see 2.3 streaming RTP after it ACKs the 200 from 2.10.
> >
> > Any suggestions?
> >
> > Here's my cfg file:
> >
> > #
> > # sample config file to be used with nathelper/rtpproxy
> > #
> > # start RTPProxy with: rtpproxy -l your_public_ip -s udp:localhost:8899
> > #
> >
> > # ----------- 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
> >
> > # --- module loading
> >
> > mpath="/usr/local/lib/openser/modules/"
> >
> > loadmodule "mysql.so"
> > loadmodule "sl.so"
> > loadmodule "tm.so"
> > loadmodule "rr.so"
> > loadmodule "maxfwd.so"
> > loadmodule "usrloc.so"
> > loadmodule "textops.so"
> > loadmodule "auth.so"
> > loadmodule "auth_db.so"
> > loadmodule "xlog.so"
> > loadmodule "registrar.so"
> > loadmodule "mi_fifo.so"
> > loadmodule "presence.so"
> > loadmodule "presence_xml.so"
> > loadmodule "xcap_client.so"
> > loadmodule "nathelper.so"
> >
> > # --- setting module parameters
> >
> > modparam("mi_fifo", "fifo_name", "/tmp/openser_fifo")
> >
> > modparam("auth_db","db_url","mysql://openser:secret@127.0.0.1/openser")
> >
> > modparam("registrar", "received_avp", "$avp(s:rcv)")
> >
> > modparam("xcap_client", "db_url",
> > "mysql://openser:secret@127.0.0.1/openser")
> >
> > # -- usrloc params --
> > modparam("usrloc", "db_url", "mysql://openser:secret@127.0.0.1/openser")
> > modparam("usrloc", "db_mode", 2)
> > modparam("usrloc", "nat_bflag", 3)
> >
> > # -- registrar params --
> > modparam("registrar", "received_avp", "$avp(s:rcv)")
> >
> > # -- auth params --
> > modparam("auth_db", "calculate_ha1", yes)
> > modparam("auth_db", "password_column", "password")
> >
> > # -- rr params --
> > modparam("rr", "enable_full_lr", 1)
> >
> > # -- nathelper
> > modparam("nathelper", "rtpproxy_sock", "udp:127.0.0.1:8899")
> > modparam("nathelper", "natping_interval", 30)
> > modparam("nathelper", "ping_nated_only", 1)
> > #modparam("nathelper", "sipping_bflag", 7)
> > modparam("nathelper", "sipping_from", "sip:pinger at openser.org")
> > modparam("nathelper", "received_avp", "$avp(s:rcv)")
> >
> > # -- xlog
> > modparam("xlog", "buf_size", 8192)
> >
> > # -- presence params --
> > modparam("presence|presence_xml|usrloc", "db_url",
> > "mysql://openser:secret@127.0.0.1/openser")
> > modparam("presence", "max_expires", 3600)
> > modparam("presence_xml", "force_active", 1)
> > modparam("presence", "server_address", "sip:127.0.0.1:5060" )
> >
> >
> > # --- main routing logic
> > route{
> > xlog("***start***\n");
> > if (!mf_process_maxfwd_header("10")) {
> > sl_send_reply("483","Too Many Hops");
> > xlog("***end - Too Many Hops");
> > exit;
> > };
> > if (msg:len >= 2048 ) {
> > sl_send_reply("513", "Message too big");
> > xlog("***end - Too big");
> > exit;
> > };
> >
> > # NAT detection
> > route(2);
> >
> > if (!method=="REGISTER") {
> > xlog("***route - recordroute\n");
> > record_route();
> > }
> > if (loose_route()) {
> > xlog("***route - looseroute\n");
> > append_hf("P-hint: rr-enforced\r\n");
> > route(1);
> > };
> >
> > if (!uri==myself) {
> > xlog("***route - not myself\n");
> > append_hf("P-hint: outbound\r\n");
> > route(1);
> > };
> >
> > if (uri==myself) {
> > if (method=="REGISTER") {
> > xlog("***route - register");
> > if (!www_authorize("openser.org", "subscriber")) {
> > xlog("***route - challenging");
> > www_challenge("openser.org", "0");
> > exit;
> > };
> >
> > if (isflagset(5)) {
> > xlog("***route - isflagset(5)");
> > setflag(6);
> > # if you want OPTIONS natpings uncomment
> > next
> > # setflag(7);
> > };
> > save("location");
> > xlog("***route - registered");
> > exit;
> > };
> >
> > if (!lookup("location")) {
> > sl_send_reply("404", "Not Found");
> > xlog("***route - 404, Not found");
> > exit;
> > };
> > append_hf("P-hint: usrloc applied\r\n");
> > };
> >
> > route(1);
> > xlog("***end***\n");
> > }
> >
> >
> > route[1] {
> > xlog("***route1***\n");
> > if (subst_uri('/(sip:.*);nat=yes/\1/')){
> > xlog("***route[1] - setflag(6)");
> > setflag(6);
> > };
> >
> > if (isflagset(5)||isflagset(6)) {
> > xlog("***route[1] - route(3)");
> > route(3);
> > }
> >
> > if (!t_relay()) {
> > xlog("***route[1] - error");
> > sl_reply_error();
> > };
> > xlog("***end - route[1]");
> > exit;
> > }
> >
> > route[2]{
> > xlog("***route2***\n");
> > force_rport();
> > if (nat_uac_test("19")) {
> > xlog("***route2 - nat_uac_test(19)\n");
> > if (method=="REGISTER") {
> > xlog("***route2 - register\n");
> > fix_nated_register();
> > } else {
> > xlog("***route2 - contact\n");
> > fix_nated_contact();
> > };
> > setflag(5);
> > };
> > }
> >
> > route[3] {
> > xlog("***route3***\n");
> > if (is_method("BYE|CANCEL")) {
> > xlog("***route3 - unforce\n");
> > unforce_rtp_proxy();
> > } else if (is_method("INVITE")){
> > xlog("***route3 - force\n");
> > force_rtp_proxy("i");
> > t_on_failure("1");
> > };
> > if (isflagset(5)) {
> > xlog("***route3 - isflagset(5)\n");
> > search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
> > }
> > t_on_reply("1");
> > }
> >
> > failure_route[1] {
> > xlog("***failureroute1***\n");
> > if (isflagset(6) || isflagset(5)) {
> > xlog("***failroute1 - unforce\n");
> > unforce_rtp_proxy();
> > }
> > }
> >
> > onreply_route[1] {
> > xlog("***onreplyroute1***\n");
> > if ((isflagset(5) || isflagset(6)) && status=~"(183)|(2[0-9][0-9])")
> > {
> > xlog("***onreplyroute1 - force\n");
> > force_rtp_proxy("i");
> > }
> > search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
> >
> > if (isflagset(6)) {
> > xlog("***onreplyroute1 - contact\n");
> > fix_nated_contact();
> > }
> > xlog("***end - onreplyrout[1]");
> > exit;
> > }
> >
> >
> > Thanks,
> >
> > Eric
> >
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.openser.org
> > http://lists.openser.org/cgi-bin/mailman/listinfo/users
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