I didn't mean to imply that I could reach (ping) ATMs that were not part of the 
customer's network (ie STAR, MAC, etc). But to imply that the physical location 
is irrelevent. If it is the customers machine, it is on (one of) their networks 
which makes it reachable.
    Perhaps your ATM's are on your WAN. Not all banks share your strategy. Some 
banks have far more ATMs deployed at gas stations and malls than branches. 
Makes the isolated network strategy very easy to pull off.

    kit> I am not the bank, but a contractor. I am also in the US, YMMV. On 
many of my customer's networks, I can easily reach (ping) every ATM in every 
mall and gas station and branch from any other part of the network. I'm not 
trying to toot my own horn, for I have none, but my customers are quite large. 
and stupid.

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