[OpenSIPS-Users] two UACs behind the same nat

[Nick]

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
> >
>
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