[Users] RTP , NAT problem,

[Daniel-Constantin Mierla]

Hello,

this sounds like a missrouted ACK. Please watch the network traffic on 
your server and see if the ACK is sent properly to the callee. You can use:

ngrep -d any port 5060

on your sip server machine.

Cheers,
Daniel


On 07/05/06 12:51, raviprakash sunkara wrote:
>
> Hi Users,
>
> I install the openser 1.0.1  and rtp proxy 0.3 in same  Linux System
> openser server is located with public id xx.xxx.xxx.xx of   
> 192.168.2.2 <http://192.168.2.2> ,
> And  UAC are outside the NAT, 
> When  one UAC call to other UAC( are both in  outside the NAT where 
> openser server), after the INVITE method get request by server,  after 
> 32 second its hung up automatically, Voice is ok , and callee is hung 
> upping, not caller,
> UAC ( inside the nAT , openser server ) in not hung uping and voice is 
> not ok....
> Where is the problem, in NAt with rtp or networking,
>
> route{
>     if (!mf_process_maxfwd_header("10")) {
>         sl_send_reply("483","Too Many Hops");
>         exit;
>     };
>     if (msg:len >=  2048 ) {
>         sl_send_reply("513", "Message too big");
>         exit;
>     };
>
>     # NAT detection
>     route(2);
>
>     if (!method=="REGISTER")
>         record_route();
>
>     if (loose_route()) {
>         append_hf("P-hint: rr-enforced\r\n");
>         route(1);
>     };
>
>     if (!uri==myself) {
>         append_hf("P-hint: outbound\r\n");
>         route(1);
>     };
>
>     if (uri==myself) {
>         if (method=="REGISTER") {
>             if (!www_authorize("xx.xxx.xxx.xxx", "subscriber")) {
>                 www_challenge("xx.xxx.xxx.xxx", "0");
>                 exit;
>             };
>
>             if (isflagset(5)) {
>                 setflag(6);
>                 # if you want OPTIONS natpings uncomment next
>                 # setflag(7);
>             };
>             save("location");
>             exit;
>         };
>
>         if (!lookup("location")) {
>             sl_send_reply("404", "Not Found");
>             exit;
>         };
>         append_hf("P-hint: usrloc applied\r\n");
>     };
>
>     route(1);
> }
>
>
> route[1] {
>     if (subst_uri('/(sip:.*);nat=yes/\1/')){
>         setflag(6);
>     };
>
>     if (isflagset(5)||isflagset(6)) {
>         route(3);
>     }
>
>     if (!t_relay()) {
>         sl_reply_error();
>     };
>     exit;
> }
>
> route[2]{
>     force_rport();
>     if (nat_uac_test("19")) {
>         if (method=="REGISTER") {
>             fix_nated_register();
>         } else {
>             fix_nated_contact();
>         };
>         setflag(5);
>     };
> }
>
> route[3] {
>     if (is_method("BYE|CANCEL")) {
>         unforce_rtp_proxy();
>     } else if (is_method("INVITE")){
>         force_rtp_proxy();
>         t_on_failure("1");
>     };
>     if (isflagset(5))
>         search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
>     t_on_reply("1");
> }
>
> failure_route[1] {
>     if (isflagset(6) || isflagset(5)) {
>         unforce_rtp_proxy();
>     }
> }
>
> onreply_route[1] {
>     if ((isflagset(5) || isflagset(6)) && status=~"(183)|(2[0-9][0-9])") {
>         force_rtp_proxy();
>     }
>     search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
>
>     if (isflagset(6)) {
>         fix_nated_contact();
>     }
>     exit;
> }
>
>
>
> -- 
> Thanks and Regards with cheers
> Sunkara Ravi Prakash (Voip Developer)
> Hyperion Technology
> Kondapur, Hi-tech city,
> Hyderabad.
> www.hyperion-tech.com <http://www.hyperion-tech.com>
> +91-9985077535
> ------------------------------------------------------------------------
>
> _______________________________________________
> Users mailing list
> Users at openser.org
> http://openser.org/cgi-bin/mailman/listinfo/users
>