[OpenSIPS-Users] Is opensips a front end to asterisk?

[Bogdan-Andrei Iancu]

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: "lists at grounded.net" <lists at grounded.net>
>> Subject: Re: [OpenSIPS-Users] Is opensips a front end to asterisk?
>> To: users <users at lists.opensips.org>
>> Message-ID: <20097310242.197138 at 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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