ZyXEL Communications 5 Series - Manual (Page 635)

ZyWALL 5/35/70 Series User’s Guide
Chapter 44 Filter Configuration 635
Figure 382 Filter Rule Process
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.