How to install the Configure ISA Firewall on Win2000

Warning: The enterprise initialization process copies the ISA Server schema information to Active Directory. Because Active Directory does not support deletion of schema objects, the enterprise initialization process is irreversible.

How to install ISA Server as a firewall

To install ISA Server as a firewall, follow these steps:

1. Click Start, click Run, type cmd in the Open text box, and then click OK.
2. At the command prompt, type Path/isa/i386/msisaent.exe where path is the path to the ISA Server installation file. Note that the path may be the root folder of the ISA Server CD, or it may be a shared folder on the network that contains the ISA Server files.
3. Click Continue in the Microsoft ISA Server Installation dialog box.
4. Read the End User License Agreement (EULA), and then click I agree.
5. Select one of the installation options, as appropriate.
6. Click Firewall mode, and then click Continue.
7. When you are prompted to allow the installer to stop Internet Information Services (IIS), click OK.
8. To automatically build an Internet protocol (IP) address, click Establish a table, click the network card that is connected to your server, and then click OK.
9. Click OK to start the Configuration wizard.

How to configure firewall protection
To configure firewall protection, follow these steps:
1. Click Start, point to the program, point to Microsoft Isa Server, and then click ISA Management.
2. In the console tree, click to expand the server_name/access policy (where server_name is the name of the server), right-click IP packet Filters, point to New, and then click Filter.
3. In the IP packet filter Name box, type the name of the packet that you want to filter, and then click Next.
4. Click Allow or block to allow or block the packet, and then click Next.
5. Accept the predefined options, and then click Next.
6. Click the option to select the way you want to apply the packet filter, and then click Next.
7. Click the remote computer, and then click Next.
8. Click Finish.
Note: You can also edit the properties of other services, such as Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS), by double-clicking the appropriate service in the Configuration box.