ZoneAlarm Pro enables you to quickly and easily secure your computer so that the trusted machines you're networked with can access your shared resources, but Internet intruders can't use your shares to compromise your system.
To configure ZoneAlarm Pro for secure sharing:
Note
ZoneAlarm Pro will detect your network automatically and display the New Network
alert. You can use the alert itself to add your network subnet to the Trusted
Zone. For more information see the related topic New Network alert.
New Network alert
Adding to the Trusted Zone