Server 2008 and Radius

I wanted to configure my SnapGear router to permit VPN access based on Active Directory accounts. To do this, you need to enable RADIUS on an authentication server. While it's not that tough to do on Server 2008, it's far from intuitive. Matt Williamson has a great blog post on how to do it. I'll be setting this up for a couple of clients who have Active Directory and better routers with RADIUS client ability.