[Users] mediaproxy and subnet

[Christophe Irles]

Hi,

You don't need to use the loose route section but to set several AVP flags
according the UAs topologies: using from the same subnet or not, NATed or
not. Then according flags you can handle correctly fix_nated_contact or
use_media_proxy

Hope this helps,
Christophe

-----Message d'origine-----
De : users-bounces at openser.org [mailto:users-bounces at openser.org] De la part
de Paul Smith
Envoyé : mardi 10 octobre 2006 11:14
À : users at openser.org
Objet : [Users] mediaproxy and subnet

Hi,
I have set up openser on a public ip address running the openser.cfg from
the getting started tutorials
(http://siprouter.onsip.org/doc/gettingstarted/ch08.html), very slightly
modified... and it all runs great with mysql users and locations, mediaproxy
for far-end nat traversal.  Cool.

For my next challenge I would like to find a way to disable the mediaproxy
call routing if the 2 phones are on the same private subnet. 
In essense I think I ought ot be looking at INVITES to see if the first via
address is the same public ip, and if so then don't fix_nated_contact and
don't use_media_proxy.

The reason to do this is that if 2 phones are on same subnet they should be
able to see each other's private ip and so there is no reason to send the
whole rtp traffic out over their adsl connection to mediaproxy and back to
the same  adsl connection!

I think I need some logic in the following sections:
Loose Route Section, in the if method="INVITE" block (to handle reinvites)
the route [3] block INVITE MESSAGE HANDLER to set up new call route the
route [4] block NAT TRAVERSAL SECTION for routing established calls the
onreply_route[1] block .... not sure I understand this block yet...

Am I going in the right direction?  Has anyone got some working snippets for
the openser.cfg or some references to a useful page on the web?

Thanks.

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