Figure 18-1 Outgoing Packet Filtering Process - ZyXEL Communications Prestige 202H User Manual

Prestige 202H User's Guide
Outgoing
Packet
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.
18-2
No
match
Data
Call Filters
Match
Drop Drop packet
packet if line not up

Figure 18-1 Outgoing Packet Filtering Process

Call Filtering
No
match
Built-in
User-defined
default
Call Filters
(if applicable)
Match
Drop packet
if line not up
Or
Send packet
but do not reset
Idle Timer
Active Data
No
match
Initiate call
if line not up
Match
Or
Send packet
but do not reset
Idle Timer
Filter Configuration
Send packet
and reset
Idle Timer