[Serdev] Better NAT support in registrar

[Jan Janak]

On 28-02 23:27, Andres wrote:
> 
> >sip:1.2.3.4:5060;dstip=5.6.7.8;dstport=5090
> >
> >Where the hostname part is the public IP of the NAT, the port (5060) is
> >the port allocated by the NAT, "dstip" parameter is the IP used on SER
> >side and "dstport" parameter is the port number used on SER side during
> >registration. This information is later used to find the correct outgoing
> >socket in SER. If no such socket can be found (it can happen if you
> >reconfigure SER to use different ports or IPs), it will use the default 
> >IP/port again.
> >
> >Daredevils are encouraged to give it a try and send feedback to the list 
> >:-)
> >
> > 
> >
> Jan.   This feature is simply fantastic!!  We have had this problem for 
> 2 years now and had been forced to do customized routing for many of our 
> users.  We will try it our and let you know the results.

  There is one problem we discovered yesterday, the socket enforced by
  lookup function would also be used when generating replies (100
  Trying) so it can happen that you would receive the reply from a
  different port number than the request was sent to. Andrei is looking
  into it.

    Jan.