Figure 30-2 Filter Rule Process - ZyXEL Communications Internet Security Gateway ZyWALL 2 Series User Manual

Fetch Next
Filter Set
Yes
Next Filter Set
Available?
No
Drop Packet
Filter Configuration
Filter Set
Fetch Next
Filter Rule
Yes
Next filter
No Rule
Available?
Check
Next
Rule

Figure 30-2 Filter Rule Process

ZyWALL 2 Series User's Guide
Start
Packet into
filter
Fetch First
Filter Set
Fetch First
Filter Rule
No Active?
Yes
Execute
Filter Rule
Forward
Drop
Accept Packet
30-3