Figure 8-2 Filter Rule Process; Filter Set - ZyXEL Communications Prestige 645R User Manual

Yes
Next Filter Set
Available?
No
Drop Packet
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.
Filter Configuration

Filter Set

Fetch Next
Filter Set
No

Figure 8-2 Filter Rule Process

Prestige 645 ADSL Internet Access Router
Fetch Next
Yes
Filter Rule
Next Filter Rule
Available?
Check Next Rule
Drop
Start
Packet
into Filter
Fetch First
Filter Set
Fetch First
Filter Rule
Execute Filter
Rule
Forward
Accept Packet
8-3