Learn more about the order in which firewall rules are processed

The Smart Firewall processes Traffic rules before it processes Program rules. For example, when there is a Program rule that allows Microsoft Edge browser to access Internet using port 80 with TCP protocol and a Traffic rule that blocks TCP communication through port 80 for all applications. The Edge browser cannot access the Internet as Norton gives precedence to Traffic rules over Program rules.

Within the list of Traffic rules, rules are processed in order of appearance, from top to bottom. Program Rules entries are not processed in order. The rules within each Program Rules entry, however, are processed in order of appearance, from top to bottom.

For example, you have a Program rule for a remote desktop application that blocks the use of the application with any other computer. You add another rule for the same application that allows its use with a specific computer. You then move the new rule before the original rule in the Program rules list. Norton processes the new rule first and lets you use the remote desktop application with that specific computer. It then processes the original rule and prevents the application's use with any other computer.

Need more help?

• Learn more about firewall rules in Smart Firewall

• Add Traffic rules and Program rules

• Modify Traffic rules and Program rules