Microsoft 2004 manual Clients Network to the External Network Internet

Firewall Policy	Description
	The following access rules will be created:
	1.	Allow HTTP, HTTPS, FTP from Internal Network and VPN
		Clients Network to the External Network (Internet)
	2.	Allow DNS from Internal Network, VPN Clients Network and
		Perimeter Network to External Network (Internet)
	3.	Allow all protocols from VPN Clients Network to Internal
		Network
Allow unrestricted	Allow all types of access to the Internet through the firewall. The
access	firewall will prevent access from the Internet to the protected
	networks. Use this option when you want to allow all Internet
	access. You can modify this policy later to block some types of
	network access.
	The following rules will be created:
	1.	Allow all protocols from Internal Network and VPN Clients
		Network to External Network (Internet) and Perimeter Network
	2.	Allow all protocols from VPN Clients to Internal Network

Perform the following steps to use the 3-Leg Perimeter network template:

1.Open the Microsoft Internet Security and Acceleration Server 2004 management console and expand the server name. Expand the Configuration node and click on the Networks node.

2.Click the Networks tab in the Details pane and then click the Templates tab in the Task pane. Click on the 3-Leg Perimeter network template.

ISA Server 2004 Configuration Guide 101