[asterisk-users] Security - Using Linksys PAP2T from outside with a dynamic IP is there anyway to block all other traffic but those of the PAP2T?

[jon pounder]

On 10/02/2010 03:31 PM, bruce bruce wrote:
> Hi,
>
> Can you please explain the DynDNS part. How would I put that in my 
> Asterisk server as an identified party? Usually it comes to me with IP 
> address (dynamic). Or do add something like this in sip_nat.conf:
>
> externip=mybox.dyndns.org <http://mybox.dyndns.org>
> localnet=192.168.0.0/255.255.255.0 <http://192.168.0.0/255.255.255.0>

every time the address changes you have to have some script to make the 
change in your firewall.
>
> ???
>
> Thansk again,
>
> On Sat, Oct 2, 2010 at 2:59 PM, jon pounder <jonp at inline.net 
> <mailto:jonp at inline.net>> wrote:
>
>     On 10/02/2010 02:56 PM, bruce bruce wrote:
>     > Hi Everyone
>     >
>     > I think PAP2T supports DynDNS and other Dynamic DNS providers. I
>     have
>     > a box that needs to be secured at all times. Currently it's not
>     > connected to the internet. If it were connected, I would have
>     iptables
>     > block any and all traffic from outside but I want a single device -
>     > Linksys PAP2T - to be able to connect back to the server. That is a
>     > stand alone device and doesn't support VPN and I don't have the
>     luxury
>     > of putting a VPN client on the PAP2T side to connect back to the
>     > server. Is there any way I can DynDNS on the PAP2T to somehow notify
>     > the Asterisk Server that it's a safe device coming in?
>     >
>     > I do use fail2ban but that is not what I am looking for at this
>     > moment. And since the IP is dynamic on the PAP2T, I can't just
>     use the
>     > iptables to let it in as it might change all a sudden.
>     >
>     > Thanks
>     do the dyndns on whatever router is in front of the pap2t
>     or
>     get some other box that supports it.
>
>
>     other than that you are looking for some sort of magic bullet
>
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