In the console tree of ISA Server Management, click
Networks.
In the details pane, click the Networks tab, and then
select the applicable network.
On the Tasks tab, click Edit Selected
Network.
On the Firewall Client tab, click Enable Firewall
client support for this network.
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 Networks.
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, expand Configuration, and then
click Networks.
Important
Firewall Client properties cannot be configured for the
following built-in networks: External, Quarantined VPN Clients, and
VPN Clients.
If Internet Protocol security (IPsec) transport mode is enabled
for a network, functionality for Firewall clients in that network
may be impaired. If Firewall clients in the network do not behave
as expected, disable IP routing. For instructions, see Enable IP
routing.