Hi John,
Actually you can run OpenSIPS from behind a NAT. You can instruct it
what IP and port to advertise to the outer world via advertised_address
and advertised_port core parameters:
http://www.opensips.org/Resources/DocsCoreFcn15#toc24
http://www.opensips.org/Resources/DocsCoreFcn15#toc25
Regards,
Bogdan
John Quick wrote:
>> Date: Fri, 3 Jul 2009 10:02:42 -0500
>> From: "[email protected]" <[email protected]>
>> Subject: Re: [OpenSIPS-Users] Is opensips a front end to asterisk?
>> To: users <[email protected]>
>> Message-ID: <20097310242.197...@leena>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>>> I recommend that you don't try to run OpenSIPS on a NAT'd server. I tried
>>> recently and have been
>>> regretting it ever since. It is not designed to be behind NAT, although it
>>> is great for handling UA's that are.
>>>
>> Bit confused about this. Our asterisk machines have always been behind a
>> firewall and on NAT IPs.
>> My thought was to use opensips at it's own location, sending the traffic to
>> at least two separate
>> locations for load balancing and redundancy. I'm not sure how I could avoid
>> using NAT?
>>
>
> Asterisk works fine behind NAT, but OpenSIPS does not. Asterisk has a
> parameter, externip, you can set
> that tells it what its external IP address. I am not aware of an equivalent
> in OpenSIPS. You would
> avoid NAT by having multiple static IP addresses assigned to a DMZ or even
> directly connecting the
> OpenSIPS server to the Internet and using iptables to block unwanted
> connections.
>
> I'd be interested to hear from other users/developers of OpenSIPS on this
> subject.
>
> John
>
>
>
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