Prestige 2301R/RL-P1C Support Notes
All contents Copyright (c) 2007 ZyXEL Communications Corporation.
18
About Filter & Filter Examples
How does ZyXEL filter work?
•
Filter Structure
The ZyXEL device 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.