[Devel] [Users] nathelper/rtpproxy when both SIP UA are behind same NAT
Norman Brandinger
norm at goes.com
Wed Dec 14 03:27:08 CET 2005
Hello Rafael,
I took a very quick look at your conifguration and noticed that you have
commented out the "nat_flag" line. This setting is documented here:
http://www.openser.org/docs/modules/1.1.x/registrar.html#AEN103 I
believe that you should, at a minimum, uncomment this line.
# modparam("registrar", "nat_flag", 6)
Your configuration looks as though it is based on information from the
iptel.org site. I would suggest that you also review the NAT example
configuration from the onsip.org site. The onsip.org configurations are
a little more current. The nice part of the onsip.org configurations is
that they are provided with line-by-line explanations.
Regards,
Norm
Rafael R. GV wrote:
> Hi
> thank you!, now i am using Openser, it was easy to move from ser, just
> some minor changes like 'break' to 'return' etc, my nathelper
> implementation is based on a ser example and it works very well, just
> made some minor changes to set flag 6 and flag 7 to 'Register' and
> 'Invites' when 'nat_uac_test("19")' in order to try Tavis code
> snippet, in my tests there is no audio when reset flag 6 and 7 after
> detected the two clients behind the same NAT and can't hungup or
> cancel calls properly, please someone see my cfg attached and send
> some advice, what I am missing?
>
> thanks
> rafael
>
>
>
> On 12/7/05, *Norman Brandinger* <norm at goes.com <mailto:norm at goes.com>>
> wrote:
>
> Hi Rafael,
>
> You would use the "example code snippet" when you want to decide
> whether
> or not to use rtpproxy or mediaproxy based on the fact that both the
> caller and the callee are behind the same NAT device. Please
> review the
> mailing lists as this topic has been discussed many times.
>
> I added some additional comments in regard to the setting of flags
> 2 and
> 3 in the posted example at:
> http://openser.org/dokuwiki/doku.php?id=avp_examples
>
> Generally, I have found that if OpenSER fails to start with an error
> indicating that the function can't be found, it's time to find the
> correct module to add.
>
> In response to your last question "etc." I suggest that you review the
> three web sites: openser.org <http://openser.org>, iptel.org
> <http://iptel.org> and onsip.org <http://onsip.org>. The last one has
> some really great material that explains alot.
>
> Regards,
> Norm
>
>
> Rafael R. GV wrote:
> > Hi
> > I am using nathelper/rtpproxy in ser , please see my ser.cfg
> attached
> > and tell me where do I have to use this code snippet? where did you
> > set flags 2 and 3?, what other modules I need?, etc.
> >
> > thank you
> > Rafael
> > Lima-Peru
> >
>
>
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