Exactly.

I have a friend who uses this service so he can always reach his home network 
by name without having a static IP.  Perhaps this can be of use to some on the 
list.

http://dyn.com/support/clients/

And it has been working very well according to him.

David K0LUM

On Dec 20, 2013, at 11:46 AM, Lynn W. Taylor, WB6UUT wrote:

> I ran an internet service provider for a couple of decades.
> 
> The sad part of this is that there is a standard solution to all of this, the 
> same one that works for Skype and BitTorrent.
> 
> The radio end needs to send a message to some central server (run by 
> RemoteRig) that says "I'm on, my 'name' is N1AL" or whatever identifier seems 
> reasonable.
> 
> The server sees the message, gets the apparent public IP from the header, and 
> records it.  The updates have to be every minute or two, but they can be UDP 
> to minimize bandwidth and connections.
> 
> The client (at Starbucks) sends a message to the central server saying "I 
> want to operate N1AL" and the server says "connect to this IP using these 
> port numbers."
> 
> The next time the station checks in (about half the update interval on 
> average) the server tells the station "connect to the operator's IP using 
> these port numbers."
> 
> Because the typical firewall opens up circuits for outgoing connections, the 
> NAT firewall at Starbucks and the NAT firewall at the station both open the 
> correct ports, thinking that they're connecting out, and not realizing 
> they're being tricked into allowing a connection in -- it's okay because it 
> has been coordinated through the central server.
> 
> No static IP addresses, no messing with port forwarding, no trying to get 
> your IT department to let you operate during your lunch break.
> 
> There are a few missing details, but that's how most everything else works.
> 
> -- Lynn

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