Configuring ISA Firewalls for ConfigMgr

In case you are doing Internet Based Client Management (IBCM), Adam has a great article on configuring ISA for IBCM.  It's not an easy task to accomplish and his tutorial really sheds some light.

Firewalls and Internet Based Client Management : Part 1

Firewalls and Internet Based Client Management : Part 2

Documentation

If you have read the blog entries and still have questions on setup, you can request documentation from the ISA Server team for how to configure ISA with Internet-based site systems in Configuration Manager 2007, send an email jointly to isadocs@microsoft.com and smsdocs@microsoft.com .