[OpenSER-Users] bye from gateway going to local address

[Bogdan-Andrei Iancu]

Hi Richard,

Can you post the INVITE request/reply received by the GW?

Regards,
bogdan

Richard Bennett wrote:
>
> Hi,
> I have Openser 1.1 with Mediaproxy terminating calls to a AS5350 Cisco 
> gateway.
> Everything works fine, except when the PSTN party terminates the call. 
> The cisco gateway then sends a bye message to the user-agents internal 
> IP address instead of to the sip proxy's ip address.
> Here's an ngrep:
> 1.2.3.204=cisco gateway
> 1.2.3.201=openser proxy
> 62.1.2.122=useragent external ip
> 192.168.1.10 = useragent internal ip
>
> U 1.2.3.201:5060 -> 192.168.1.10:5060
> BYE sip:test at 62.1.2.122:5060 SIP/2.0.
> Record-Route: <sip:1.2.3.201;lr=on;ftag=E6EFE450-D54>.
> Via: SIP/2.0/UDP 1.2.3.201;branch=z9hG4bKebda.e0002794.0.
> Via: SIP/2.0/UDP  1.2.3.204:5060;branch=z9hG4bKCC881474.
> From: <sip:04766343 at 192.168.1.10>;tag=E6EFE450-D54.
> To: "3227842234" <sip:101002936 at sip.server.com>;tag=6b26b6926603729o0.
> Date: Tue, 23 Oct 2007 20:36:05 GMT.
> Call-ID: 656e89a4-6b2eb629 at 192.168.1.24.
> User-Agent: Cisco-SIPGateway/IOS-12.x.
> Max-Forwards: 69.
> Route: 
> <sip:192.168.1.10;lr=on;ftag=6b26b6926603729o0;vsf=AAAAAEVVQkRwAwABGHFFUV5SAFpCaWVuc2ludmVzdG1lbnQuY29t>. 
>
> Timestamp: 1193171774.
> CSeq: 101 BYE.
> Reason: Q.850;cause=16.
> Content-Length: 0.
>
> So it looks to me like the Cisco is simply ignoring the record-route 
> header.
> Is this a config error in the cisco, or in Openser?
> Pertinent bits of the openser config are:
>
>         # Record Route Section
>         if (method=="INVITE" && client_nat_test("3")) {
>                 record_route_preset("1.2.3.201:5060;nat=yes");
>         } else if (method!="REGISTER") {
>                 record_route();
>         };
>         # Call Tear Down Section
>         if (method=="BYE" || method=="CANCEL") {
>                 end_media_session();
>         };
>         # Loose Route Section
>         if (loose_route()) {
>                 if ((method=="INVITE" || method=="REFER") && 
> !has_totag()) {
>                         sl_send_reply("403", "Forbidden");
>                         exit;
>                 };
>                 if (method=="INVITE") {
>                         if (!allow_trusted()) {
>                                 if (!proxy_authorize("","subscriber")) {
>                                         proxy_challenge("","0");
>                                         exit;
>                                 } else if (!check_from()) {
>                                         sl_send_reply("403", "Use 
> From=ID");
>                                         exit;
>                                 };
>                                 consume_credentials();
>                         };
>                         if 
> (client_nat_test("3")||search("^Route:.*;nat=yes")){
>                                 setflag(6);
>                                 use_media_proxy();
>                         };
>                 };
>                 route(1);
>                 exit;
>         };
>         # Call Type Processing Section
>         if (!is_uri_host_local()) {
>                 if (is_from_local() || allow_trusted()) {
>                         route(4);
>                         route(1);
>                 } else {
>                         sl_send_reply("403", "Forbidden");
>                 };
>                 exit;
>         };
>         if (method=="ACK") {
>                 route(1);
>                 exit;
>         } else if (method=="CANCEL") {
>                 route(1);
>                 exit;
>         } else if (method=="INVITE") {
>                 route(3);
>                 exit;
>         } else  if (method=="REGISTER") {
>                 route(2);
>                 exit;
>         };
>
> route[1] {
>         # Default Message Handler
>         t_on_reply("1");
>         if (!t_relay()) {
>                 if (method=="INVITE" || method=="ACK") {
>                         end_media_session();
>                 };
>                 sl_reply_error();
>         };
> }
> route[2] {
>         # REGISTER Message Handler
>     # snipped
> }
> route[3] {
>         # INVITE Message Handler
>         if (client_nat_test("3")) {
>                 setflag(7);
>                 force_rport();
>                 fix_nated_contact();
>         };
>         if (!allow_trusted()) {
>                 if (!proxy_authorize("","subscriber")) {
>                         proxy_challenge("","0");
>                         exit;
>                 } else if (!check_from()) {
>                         sl_send_reply("403", "Use From=ID");
>                         exit;
>                 };
>                 consume_credentials();
>         };
>         lookup("aliases");
>         if (!is_uri_host_local()) {
>                 route(4);
>                 route(1);
>                 exit;
>         };
>         route(4);
>         route(5);
>         exit;
> };
> route[4] {
>         # NAT Traversal Section
>         if (isflagset(6) || isflagset(7)) {
>                if (!isflagset(8)) {
>                        setflag(8);
>                        use_media_proxy();
>                };
>         };
> }
>
> route[5] {
>         # PSTN Handler Cisco
>         rewritehost("1.2.3.204");
>         route(1);
> }
> failure_route[1] {
>         end_media_session();
> }
> onreply_route[1] {
>         if (status=~"(180)|(183)|2[0-9][0-9]") {
>                 if (!search("^Content-Length:[ ]*0")) {
>                         use_media_proxy();
>                 };
>         };
>         if (client_nat_test("1")) {
>                 fix_nated_contact();
>         };
> }
>
>
> Thanks for any help,
>
> Richard
>
>
>
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