[OpenSIPS-Users] Question about NAT

[Travis Manson-Drake]

Hello everyone,

So I went ahead an implemented the NAT helper per Johan’s suggestion, I am now seeing the host at the correct IP address, however I’m still getting an unresolvable destination when trying to call it.

[cid:image001.png at 01D17DE7.FD945850]

Any ideas?

From: Travis Manson-Drake
Sent: Monday, March 14, 2016 10:50 AM
To: 'OpenSIPS users mailling list' <users at lists.opensips.org>
Subject: RE: [OpenSIPS-Users] Question about NAT

Hello Aqs Younas & Johan,

Johan,

I will look into the NAT helped module. Thank you

Ags Younas,

In regards to a SIP trace, here’s an Ngrep from the proxy during a failed inbound call.

filter: ( port 5060 ) and (ip or ip6)
#


----------------------------------------------------------------------------------------------

From: users-bounces at lists.opensips.org<mailto:users-bounces at lists.opensips.org> [mailto:users-bounces at lists.opensips.org] On Behalf Of Aqs Younas
Sent: Monday, March 14, 2016 10:12 AM
To: OpenSIPS users mailling list <users at lists.opensips.org<mailto:users at lists.opensips.org>>
Subject: Re: [OpenSIPS-Users] Question about NAT

A sip trace is required. Without that it is difficult to know what is going on.

On 14 March 2016 at 21:36, Travis Manson-Drake <travism at simplybits.com<mailto:travism at simplybits.com>> wrote:
Hello Everyone!

Quick question, it seems the proxy is trying to forward request’s to my Host’s private IP addresses versus the IP of the router their behind. Is there something I have to add to my routing logic to have it route to the host’s public IP versus private? I was thinking of a rewrite host port but don’t know how I would do that dynamically per transaction.

Any suggestions would be incredibly appreciated!

Also for reference here’s my routing logic.


#default routing logic

route
{


        if (!mf_process_maxfwd_header("10"))

                {
                        sl_send_reply("483","Too Many Hops");
                        exit;
                }

        if (cache_fetch("local",'$fU',$avp(PBX)))
                {
                        $rd = $avp(PBX);
                        xlog("this is the Value of the Cache_local r-uri domain: $avp(PBX) for $fU");
                }
        else
                {
                        avp_db_query("select Servers.ipaddress from Servers where Servers.ID in (select phone.ServerID from phone where phone.mac in (select MAC FROM `phone_registrations` where auth_userid = '$(fU{s.escape.common})'))", "$avp(PBX)");
                        cache_store("local",'$fU',"$avp(PBX)");

                        xlog("this is the Value of the AVP_DB_Querry r-uri domain: $rd for $fU");
                        xlog("this is the Value of the AVP_DB_Querry pseudo variable: $avp(PBX) for $fU");
                }

        if ($ct.fields(expires) == '0')
                {
                cache_remove("local",'$fU');
                exit;
                }

                if (is_method("OPTIONS"))
                        {
                        record_route();
                        t_relay();
                        }

                if (is_method("REGISTER"))
                        {
                        record_route();
                        route(register);
                        }

                if (is_method("INVITE")) && ($rd=="67.212.192.82")
                       {
                        record_route();
                        route(inbound);
                        }

                if (is_method("INVITE")) && (!$rd=="67.212.192.82")
                        {
                        record_route();
                        route(outbound);
                        }

                if (is_method("CANCLE"))
                        {
                        if (t_check_trans())
                        t_relay();
                        exit;
                        }

                if (is_method("TRANSFER"))
                        {
                        record_route();
                        route(xfer);
                        }



}

#ROutes Below

route[register]
        {
                $rU = $fU;
                $rd = $avp(PBX);
                t_relay();
                xlog("this is what were sending as our R-URI to the PBX for REGISTER: $ru  ");
        }

route[inbound]
        {
                #$rU = $fU;
                #$rd =$avp(PBX);
                t_relay();
        }
route[outbound]
        {
                #$rU = $fU;
                #$rd =$avp(PBX);
                t_relay();
        }

route[xfer]
        {
                $rU = $fU;
                $rd = $avp(PBX);
                t_relay();
        }



Travis Manson-Drake
Voice Systems Analyst


Simply Bits, LLC
T: 520.545.0311<tel:520.545.0311>  F: 520.545.7252<tel:520.545.7252>
E: travism at simplybits.com<mailto:travism at simplybits.com>
5225 N. Sabino Canyon Road
Tucson, AZ 85750
Support Hotline: 520.545.0333<tel:520.545.0333>




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