In the console tree of ISA Server Management, click
Firewall Policy.
On the Toolbox tab, click Network Objects.
On the toolbar beneath Network Objects, click
New, and then click Address Range.
In Name, type a name for the address range.
In Start Address, type the first address in the
range.
In End Address, type the last address in the range.
Click OK to close the dialog box.
Notes
To open ISA Server Management, click Start, point to
All Programs, point to Microsoft ISA Server, and then
click ISA Server Management.
For ISA Server 2006 Enterprise Edition, expand
Microsoft Internet Security and Acceleration
Server 2006, expand Arrays, expand
Array_Name, and then click Firewall
Policy.
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, and then click Firewall
Policy.