Prestige 1100 Internet Access Router
Chapter 8:
Filter Configuration
8.1About Filtering
Your Prestige uses filters to decide whether or not to allow passage of a packet. Data filtering is divided into incoming and outgoing filters, depending on the direction of the packet relative to a port.
The following sections describe how to configure filter sets. Please see our application notes for more information and examples on creating and configuring filters.
8.2The Filter Structure of the Prestige
A filter set consists of one or more filter rules. Usually, you would group related rules, e.g., all the rules for NetBIOS, into a single set and give it a descriptive name. The Prestige allows you to configure up to twelve filter sets with six rules in each set, for a total of 72 filter rules in the system.
You can apply up to four filter sets to a particular port to block multiple types of packets. With each filter set having up to six rules, you can have a maximum of 24 rules active for a single port.
The following diagram illustrates the logic flow when executing a filter rule.
Filter Configuration |
