A new demo has been added in the Microsoft ISA Server demo portion.The detail of this demo is
Title: How to Enable IP Routing in ISA Server 2000
Objective: The objective of this demo is to teach you how to enable IP routing in ISA Server 2000. If you use Windows 2000 Routing and Remote Access to enable IP routing, then IP routing will also be enabled for ISA Server, although the IP routing check box may remain unchecked.
If you are a subscriber, then click the Demos link in the navigation menu to view the complete list of demos.