The Windows firewall filters and blocks unsolicited incoming network traffic. In some circumstances, you may want to allow programs and services to access to a specific server port that is normally blocked by the Windows firewall.
 | Note: To use QStar HSM with IMPAX, open port 160 for UDP messages. |
To configure Windows firewall exceptions
Open Control Panel.
Select Windows Firewall.
Click Change settings.
Switch to the Exceptions tab.
Click Add Port.
Type the Name and Port number.
CAUTION!
If you click OK at this point, the port will be available to all IP addresses. To restrict the port to specific, trusted addresses, continue with the next step.
Click Change scope.
In the Change Scope dialog, click Custom List.
In the field under Custom List, enter a comma-delimited list of IP addresses to give access to the port.
Note:
Do not include spaces between IP addresses.
Click OK.
For any other ports to add, repeat from step 5.
When done, to close the Add a Port and Windows Firewall dialogs, click OK.
The new firewall rule takes effect immediately. You do not have to restart the server.