[OpenSIPS-Users] two UACs behind the same nat

Nick nick.chang at kland.com.tw
Mon Mar 18 15:20:50 CET 2013


Hello

I checked it. It don't to go to the route[nat_fixups].
But My UACs both behind the same NAT.

How to check why not go to the route[nat_fixups]??

Thanks
Nick


2013/3/18 Nick Khamis <symack at gmail.com>

> It will change it if fired. Make sure that you get to
> "route[nat_fixups]" for the call. And for testing, try removing the
> flags" (isflagset(5) || isbflagset(6))" etc... xlog("Why me god:
> $ru\n") always seems to have mercy on our souls. ;)
>
>
> Nick.
>
> On 3/18/13, Nick <nick.chang at kland.com.tw> wrote:
> > Hello
> >
> > I modify my config.
> >
> > route[nat_fixups] {
> > xlog("L_NOTICE","4 NAT FIXED - $fu call $ru ");
> >         #---- RTP Proxy handling ---#
> >         if (is_method("BYE|CANCEL")) {
> >                 unforce_rtp_proxy();
> >         } else if (is_method("INVITE")){
> >                 #---- Activates the RTP Proxy for the CALLEE ---#
> >                 rtpproxy_offer("c","61.67.128.46");
> >         };
> >         # catch and fix replies
> >         t_on_reply("2");
> > }
> >
> > onreply_route[2] {
> >         #xlog("incoming reply\n");
> >
> >         #---- Handling of the SDP for the 200 or 183 reply ----#
> >         #---- If behind nat (flags 5 or 6) start RTP Proxy ----#
> >         #----    Activates the RTP Proxy for the CALLER    ----#
> >         if ( is_method("INVITE") &&
> >         (isflagset(5) || isbflagset(6)) &&
> >         has_body("application/sdp") ){
> >                 rtpproxy_answer("c","61.67.128.46");
> >         }
> >
> >         #---- If the CALLEE is behind NAT, fix the CONTACT HF ----#
> >         if (isbflagset(6)) {
> >                 fix_nated_contact();
> >                 search_append('Contact:.*sip:[^>[:cntrl:]]*',
> ';nat=yes');
> >         }
> >         exit;
> > }
> >
> > Then, I used ngrep get packet.
> >
> > Connection Information still not Opensips SERVER of IP.
> > It's not change to my setting.
> >
> > Do you have any suggestion??
> >
> > Thanks
> > Nick
> >
> >
> >
> > 2013/3/15 Nick Khamis <symack at gmail.com>
> >
> >> Hello Nick,
> >>
> >> As Bogdan pointed out please look at the important parts of your SDP
> >> payload:
> >>
> >> sip:55688 at 61.67.128.46:5060
> >> Contact: <sip:55688 at 211.75.166.164:5060>
> >> c=IN IP4 211.75.166.164
> >>
> >> sip:9999 at 61.67.128.46
> >> Contact: <sip:9999 at 192.168.4.197:5060>
> >> c=IN IP4 192.168.4.197
> >>
> >> Kind Regards,
> >>
> >> Nick.
> >>
> >> On 3/15/13, Bogdan-Andrei Iancu <bogdan at opensips.org> wrote:
> >> > Hi Nick,
> >> >
> >> > But in the SDP-s received by the UACs, in the "c" line, you see the IP
> >> > of the other UAC and not the IP of OpenSIPS, right ?
> >> >
> >> > Regards,
> >> >
> >> > Bogdan-Andrei Iancu
> >> > OpenSIPS Founder and Developer
> >> > http://www.opensips-solutions.com
> >> >
> >> >
> >> > On 03/15/2013 03:28 AM, Nick Chang wrote:
> >> >>
> >> >> Hello Bodgan
> >> >>
> >> >> 2 UACs behind the same nat, I check my routing.
> >> >>
> >> >> UAC don't route to nat_fixups.
> >> >>
> >> >> But UACs checked My OpenSIPS private IP (10.10.12.111), Not Public
> IP.
> >> >>
> >> >> I don't know why? Do you have any suggestion??
> >> >>
> >> >> My Config
> >> >>
> >> >> route[generic_relay] {
> >> >>
> >> >> xlog("L_NOTICE","3 invite $si");
> >> >>
> >> >>         # for INVITEs enable some additional helper routes
> >> >>
> >> >>         #---- Helper route, if nat=yes in the R-URI  set flag 6 ----#
> >> >>
> >> >>         #----        This is used to Process REINVITES          ----#
> >> >>
> >> >>         if (subst_uri('/((sip:.*)||(sip:.*:.*));nat=yes/\1/')){
> >> >>
> >> >>                 setbflag(6);
> >> >>
> >> >>         };
> >> >>
> >> >>         #---- If caller(flag 5) or callee(flag 6) are behind NAT
>  ---#
> >> >>
> >> >>         #---- Call the route(6) to force the use of the RTP Proxy
> ---#
> >> >>
> >> >>         if (isflagset(5) || isbflagset(6)) {
> >> >>
> >> >>                 route(nat_fixups);
> >> >>
> >> >>         };
> >> >>
> >> >>         if (!t_relay()) {
> >> >>
> >> >>                 sl_reply_error();
> >> >>
> >> >>         };
> >> >>
> >> >>         exit;
> >> >>
> >> >> }
> >> >>
> >> >> route[nat_fixups] {
> >> >>
> >> >> xlog("L_NOTICE","4 NAT FIXED - $fu call $ru ");
> >> >>
> >> >>         #---- RTP Proxy handling ---#
> >> >>
> >> >>         if (is_method("BYE|CANCEL")) {
> >> >>
> >> >>                 unforce_rtp_proxy();
> >> >>
> >> >>         } else if (is_method("INVITE")){
> >> >>
> >> >>                 #---- Activates the RTP Proxy for the CALLEE ---#
> >> >>
> >> >>                 rtpproxy_offer();
> >> >>
> >> >>         };
> >> >>
> >> >>         # catch and fix replies
> >> >>
> >> >>         t_on_reply("2");
> >> >>
> >> >> }
> >> >>
> >> >> Thanks
> >> >>
> >> >> Nick
> >> >>
> >> >> *From:*Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
> >> >> *Sent:* Friday, March 15, 2013 12:32 AM
> >> >> *To:* OpenSIPS users mailling list
> >> >> *Cc:* Nick Chang
> >> >> *Subject:* Re: [OpenSIPS-Users] two UACs behind the same nat
> >> >>
> >> >> Hi Nick,
> >> >>
> >> >> Assuming routing is possible between the 2 UACs, you need to double
> >> >> check that the IPs in SDP are not changed by proxy and points to the
> >> >> actual UACs.
> >> >>
> >> >> Regards,
> >> >>
> >> >> Bogdan-Andrei Iancu
> >> >> OpenSIPS Founder and Developer
> >> >> http://www.opensips-solutions.com
> >> >>
> >> >>
> >> >> On 03/11/2013 11:40 AM, Nick Chang wrote:
> >> >>
> >> >> Hello
> >> >>
> >> >> I have two UACs behind the same nat.
> >> >>
> >> >> A call B is OK. But it's not voice.
> >> >>
> >> >> Can everyone give me a suggestion??
> >> >>
> >> >> Thanks
> >> >>
> >> >> Nick
> >> >>
> >> >>
> >> >>
> >> >> _______________________________________________
> >> >> Users mailing list
> >> >> Users at lists.opensips.org  <mailto:Users at lists.opensips.org>
> >> >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >> >
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at lists.opensips.org
> >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >>
> >
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20130318/ff943e9b/attachment-0001.htm>


More information about the Users mailing list