[Kamailio-Users] Quick RTPproxy question

[Klaus Darilion]

Am 22.03.2010 14:13, schrieb Uriel Rozenbaum:
> Hey, thanks for both replies from Daniel and Klaus.
>
> Klaus, will this work on kamailio 1.5.3 the same way?

AFAIK: yes

> Daniel, sorry I misstyped. The first flags should be ocfaei and the
> second ones ocfaie.
>
> What I meant with the question is:
> I receive an invite from public IP; I call force_rtp_proxy("ocfaei");
> Then I receive the reply (lets say 183 or 200) and I call
> force_rtp_proxy("ocfaie");
>
> Is this right?

No, read the description:

'i' corresponds to rtpproxy's first interface
'e' corresponds to rtpproxy's second interface.

so you should use: rtpproxy -l PRIVATE_IP/PUBLIC_IP

Then, the force_rtp_proxy calls should work.

Further: if the client in the public network is behind NAT you should 
not use the 'a' flag.

regards
klaus


>
> Thanks in advance,
> Uriel
>
> On Mon, Mar 22, 2010 at 6:20 AM, Klaus Darilion
> <klaus.mailinglists at pernau.at <mailto:klaus.mailinglists at pernau.at>> wrote:
>
>     Recently I have rewritten the documentation about using the e/i
>     flag. See
>
>     http://sip-router.org/docbook/sip-router/branch/master/modules_k/nathelper/nathelper.html#id2907572
>
>     regards
>     klaus
>
>     Am 19.03.2010 22:12, schrieb Uriel Rozenbaum:
>
>         Hi guys,
>
>         I have some easy doubt about nathelper functions using RTPProxy.
>
>         I'm trying to bridge from an external IP to an internal IP.
>         The start-line for rtpproxy is: rtpproxy -l PUBLIC_IP/PRIVATE_IP -s
>         udp:127.0.0.1:7999 <http://127.0.0.1:7999>
>         <http://127.0.0.1:7999> -F
>
>         It starts OK and I see it when kamailio starts.
>
>         I'm going to use something like Daniel showed on some other mail:
>
>         if(dst_ip==private)
>             force_rtp_proxy("ocfaei");
>         else
>             force_rtp_proxy("ocfaei");
>
>         if i have the invite from a public IP to someone in private on the
>         request I'll run
>         force_rtp_proxy("ocfaei");
>         then the reply will be from private to public... should I run
>         "force_rtp_proxy("ocfaei");"? or should it be the same?
>
>         As allways, thanks for your help.
>
>         Kind regards,
>         Uriel
>
>
>
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