Allocations for "always-on" ISPs

On Thu, 7 Dec 2000, Neil J. McRae wrote:

>> Now, say that an ASP wants to offer some service to your customers
>> (generating traffic = revenue) which has a communication pattern in which
>> the ASP needs to connect to the customer's PC. Because of NAT, this is not
>> possible.
>
>Yes it is, you just have to put in the configuration.

Could you please elaborate this statement?

Regards,

-- Janne
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