[asterisk-dev] avoid public IP address in conf

[Francesco Pasqualini]

I have asterisk in DMZ with private IP.
The firewall is pfsense with two WAN gateway in failover mode

https://doc.pfsense.org/index.php/Multi-WAN#Failover


I want to avoid the need to use a script to reconfigure asterisk in the
event of external IP change (for example if the main gateway go down)

http://lists.digium.com/pipermail/asterisk-users/2012-February/270057.html



thanks

On Sun, Oct 23, 2016 at 8:24 PM, Guido Falsi <mad at madpilot.net> wrote:

> On 10/23/16 11:58, Francesco Pasqualini wrote:
> > OK interresting.
> >
> > Is there a recipe to configure asterisk behind NAT with two WAN failover
> ?
> >
>
> I know no recipe, since WAN failover means your IP is moved on to the
> standby connection when links are switched. If this is not the case what
> you have isn't really a WAN failover, but just two unrelated internet
> connections and a router balancing them with a failover logic.
>
> If the IP changes when the WAN link is switched there is no way the
> router, or asterisk or anything in your LAN can do to bring over
> existing connections.
>
> Asterisk using ICE will analyze the active connection at call time and
> insert SDP information pertinent to that one for the call. So it will
> work correctly for whatever link is being used as long as it is used.
> Active calls when the link is switched due to a failure on the main one
> will go mute and time out.
>
> As Joshua Colp stated, ICE needs the other party to also have ICE
> enabled to work correctly, so you also need collaboration from the other
> side of the communication.
>
> Maybe if you explain better what you have and what you are trying to
> achieve some better suggestion can be given.
>
> --
> Guido Falsi <mad at madpilot.net>
>
> --
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