ZyWALL 10~100 Series Internet Security Gateway
Start
Packet into
filter
Fetch First
Filter Set
Filter Set
Fetch Next
Fetch First
Filter Set
Filter Rule
Fetch Next
Filter Rule
Yes
Yes
Next filter
Next Filter Set
No
Rule
No
Active?
Available?
Available?
Yes
Execute
Filter Rule
No
Check
Next
Rule
Forward
Drop
Drop Packet
Accept Packet
Figure 31-2 Filter Rule Process
Filter Configuration
31-3