title: opensips BYE issue - going to local IP
body: <p>Weired problem here. I can see the BYE is not being sent to the actual IP. i see the BYE goes from opensips (1.11.3 tls) to local ip 192.168.1.x 
  So call does not hangup.  Everything else works fine. </p>
  
  <p>Thats how i manage the NATED devices.</p>
  
  <pre><code>    if (nat_uac_test("18")) {
              if (is_method("REGISTER")) {
                  fix_nated_contact(); # Rewrite contact with source IP of signalling
                  fix_nated_register();
                  force_rport();
                  setbflag(6);    # Mark as NATed
              };
                  if (is_method("INVITE")) {
                      fix_nated_sdp("10"); # Add direction=active to SDP
                      force_rport();
                  };
  
      };
  </code></pre>
  
  <p>any idea?</p>