[Kamailio-Users] [sr-dev] Inbound NAT detection and fix_nated_register() very poorly documented
abalashov at evaristesys.com
Fri Nov 27 15:28:58 CET 2009
Daniel-Constantin Mierla wrote:
> But was a bit too long for me to read and reply at the time I got it ...
> will do it soon.
My fundamental question can be distilled to something very simple:
If I have a REGISTER from a NAT'd endpoint, what can I do (in terms of
existing module functionality, e.g. fix_nated_register(), save()) to
"store" the fact that the endpoint is NAT'd in such a way that this
can be detected again on a lookup() for an inbound call and special
measures can be taken?
I suppose there are many things that can be done - special AVPs stored
in the DB, custom SQL queries, manually checking if the RURI domain is
an RFC1918 address string etc., but I want to know what the canonical
way to do this in terms of the existing modules is. After all, it is
a common need to know that your call is going to a NAT'd endpoint
prior to receiving a reply for that request.
My secondary concern is that the way lookup() works when
received_param is used is not documented at all.
Alex Balashov - Principal
Web : http://www.evaristesys.com/
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