[OpenSER-Users] NAT configuration example

[Norman Brandinger]

http://openser.org/dokuwiki/doku.php

Section VIII is Titled: Openser and NAT

In addition, Andreas Granig has made available a very nice OpenSER
configuration utility at sipwise.com that supports NAT using wither
Mediaproxy or RTPProxy.

Thank you Andreas for making your work available !!!
**
Regards,
Norm


Jan ONDREJ (SAL) wrote:
> Hello,
>
>   can somebody send me an functional openser.cfg with NAT support? I am
> unable to find and working example on the web. May be it will be good to add
> one to openser web or voip-info.org. I have this situation:
>
>   NATed clients
>         |
>     NAT router
>         |
>      OpenSER
>         |
>      internet (or another clients, alternative provider, ...)
>
> OpenSER has an real IP (not private), but NAT clients have internet IP,
> masqueraded to another real IP. Is it possible to make a configuration
> which can use nathelper to fix these packets? For example an asterisk
> client on internet is still sending RTP packets to my openser
> and it is not accepting them (what is right).
>
> Do I require "rtpproxy" on my OpenSER? I do not want RTP traffic on my openser
> router, only SIP and client-to-client RTP stream, if it is possible.
>
> How to make it working without sip connection tracking on NAT routers?
> Is it possible?
>
> Can anybody tell me more how RTP NAT masquerade is working without SIP
> connection tracking support?
>
> Thank you.
>
> 				SAL
>
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