In the console tree of ISA Server Management, click
General.
In the details pane, click Define IP Preferences.
On the IP Options tab, select Enable IP options
filtering.
Select one of the following:
Deny all packets with any IP option
Deny packets with the selected IP options
Deny packets with all except selected IP options
If you select Deny packets with the selected IP options
or Deny packets with all except selected IP options, select
IP options.
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, expand Configuration, and then
click General.
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, expand Configuration, and then
click General.
Get latest ISA Server
content at ISA Server
Guidance(http://www.microsoft.com/).
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