Making your computer visible on your local network

If you can't see the other computers on your local network, or they can't see you, it is possible that ZoneAlarm Pro is blocking the NetBIOS traffic necessary for Windows network visibility.

To make your computer visible to the others on your local network:

1. Add the network subnet (or, in a small network, the IP address of each computer you're sharing with) to your Trusted Zone. How?
2. Set the Trusted Zone security level to medium, and the Internet Zone security level to high. This allows trusted computers to access your shared files, but blocks all other machines from accessing them.

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.

Related Topics

New Network alert
Adding to the Trusted Zone

Glossary

NetBIOS (Network Basic Input/Output System)
A program that allows applications on different computers to communicate within a local network. By default, ZoneAlarm Pro allows NetBIOS traffic in the Trusted Zone, but blocks it in the Internet Zone. This enables file sharing on local networks, while protecting you from NetBIOS vulnerabilities on the Internet.