Figure 8-2 Filter Rule Process; Filter Set - ZyXEL Communications Prestige 650R-31/33 User Manual

Fetch Next

Filter Set

Yes
Next Filter Set
Available?
No
Drop Packet
You can apply up to four filter sets to a particular port to block various types of packets. Because each filter
set can have up to six rules, you can have a maximum of 24 rules active for a single port.
Filter Configuration
Filter Set
Fetch Next
Filter Rule
Yes
Next filter
No Rule
Available?
Check
Next
Rule

Figure 8-2 Filter Rule Process

Prestige 650R-31/33 ADSL Router
Start
Packet
intoFilter
Fetch First
Filter Set
Fetch First
Filter Rule
Yes
No
Active?
Yes
Execute
Filter Rule
Forward
Drop
Accept Packet
8-3