Figure 9-1 Filter Rule Process; Filter Set - ZyXEL Communications Prestige 480 User Manual

Prestige 480 Dual BRI ISDN Router
Fetch Next

Filter Set

Yes
Next Filter Set
Available?
No
Drop Packet
9-2
Filter Set
Yes
Next Filter Rule
No
Available?

Figure 9-1 Filter Rule Process

Fetch Next
Filter Rule
Execute Filter
Check Next Rule
Drop
Start
Packet
into Filter
Fetch First
Filter Set
Fetch First
Filter Rule
Rule
Forward
Accept Packet
Filter Configuration