Hello

We currently maintain a portal for the non-profit sector that is
accessed from well over 50 countries. However, we are now looking at
restricting access to only a few customers/end-users. Our server is
run on windows 2000 (with IIS 5.0) and most of the code that we have
used to put these resources online is ASP. Assuming that the customers
have their own static I.P. (and not one dynamically assigned by an
ISP), please guide us through the steps to be taken to setup and
enable I.P. based access (preferable with examples).

Also mention any key issues that we should look out for.

Thanks.