Hello,

you need to do port forwarding of the fastweb.it NAT box. Otherwise the outside world cannot reach your milkfish box. So, port 5060 have to be routed there as well as media ports (you have to configure rtpptoxy/mediaproxy to youse a defined range of ports).

Then you have to set OpenSER to add rport parameter to each sent request, so downstream proxies will know that they have to send back the reply to source_ip:port of the request.

http://openser.org/dokuwiki/doku.php?id=openser_core_cookbook#add_local_rpor...

This does not guaratee that will work, but should be the first steps.

Cheers, Daniel

On 09/13/06 19:43, Silvano Galliani (kysucix) wrote:

Hi. I would like to use openser as a sip proxy under my provider NAT.

Here is my situation:

Sip client (software or hardware) | | | | V Milkfish with openser that's also the router and firewall that does NAT

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    V

Nat of my internet provider with public ip (fastweb.it)

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Sip provider (skypho.net) (it has also a sipproxy)

Can I make it working? How? Because I tried but even registering fails. bye kysucix

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