ZyXEL Communications Prestige 643 - Manual (Page 103)

Prestige 643 ADSL Router
Filter Configuration 8-3
Start
Fetch First
Filter Set
Fetch First
Filter Rule
Active?
Execute
Filter Rule
Fetch Next
Filter Rule
Next filter
Rule
Available?
Fetch Next
Filter Set
Next Filter Set
Available?
Accept Packet Drop Packet
Yes
No
Yes
No
Yes
Packet into
filter
Filter Set
Forward
Drop
No
Check
Next
Rule
Figure 8-2 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.