Installation manual

Alacritech Accelerator Users Guide 3-7
1. Click the Flash Update tab in the device manager.
2. Set the Port Selection, Link Speed, and Boot Selection
options, then click the Update Flash Image button.
3. Specify the flash image directory by either entering the
appropriate path to the flash files in the Flash Image
Directory text box or by browsing to the appropriate path
by clicking the Browse button. By default, the Alacritech
PXE/UNDI binary image files are located in the
Flashimage folder of the driver distribution media.
4. Once the path is specified, click the Update Flash button to
complete the flash process. NOTE: The Accelerator will
3-8 Alacritech Accelerator Users Guide
not be operational during the flash update process and will
disrupt all ports of the Accelerator being flashed in the
server.
5. After flashing the latest PXE drivers, click the OK button to
exit the application.
3.4 Disabling Windows Firewall to Enable TCP
Offload
In Windows XP Professional it is necessary to disable Windows
Firewall/Internet Connection Sharing to activate the TCP Offload
feature on the Accelerators in your system.
Note: By default with Windows XP Professional, the
Windows Firewall feature is turned on. Therefore,
TCP Chimney will not function in such a scenario.
The Windows Firewall must be explicitly turned off before
TCP Chimney can function.
Note: By default, the IP NAT and IPsec Policy Agent
features are turned on when certain components
such as bridging and routing services are enabled.
Therefore, TCP Chimney will not function in such
a scenario. When the bridging and routing
services are disabled, IPNAT is not turned off.
Therefore, TCP Chimney is not re-enabled.
The IP NAT and IPsec Policy Agent features must be
explicitly turned off before TCP Chimney can
function.