ZyXEL Communications B-2000 User Manual

ZyAIR B-2000 Wireless LAN Gateway with 4-Port Switch 

7-2  

Filter 

Configuration 

 

Two sets of factory filter rules have been configured in menu 21 to prevent NetBIOS traffic from triggering 
calls. A summary of their filter rules is shown in the figures that follow. 

The following figure illustrates the logic flow when executing a filter rule. 

Start

Fetch First

Filter Set

Fetch First

Filter Rule

Active?

Fetch Next

Filter Rule

Next filter

Rule

Available?

Fetch Next

Filter Set

Next Filter Set

Available?

Accept Packet

Drop Packet

Yes

No

Yes

No

Yes

Packet

intoFilter

Filter Set

No

 

Yes