Figure 32-12 Filtering Lan Traffic; Figure 32-13Filtering Dmz Traffic; Figure 32-14 Filtering Remote Node Traffic - ZyXEL Communications ZyWALL 5 User Manual

ZyWALL 5 Internet Security Appliance
Press ENTER to Confirm or ESC to Cancel:
32.6.2 Applying DMZ Filters
DMZ traffic filter sets may be useful to block certain packets, reduce traffic and prevent security
breaches. Go to menu 5.1 (shown next) and enter the number(s) of the filter set(s) that you want to
apply as appropriate. You can choose up to four filter sets (from twelve) by entering their numbers
separated by commas, e.g., 3, 4, 6, 11. Input filter sets filter incoming traffic to the ZyWALL and
output filter sets filter outgoing traffic from the ZyWALL. The ZyWALL already has filters to prevent
NetBIOS traffic from triggering calls, and block incoming telnet, FTP and HTTP connections.
Press ENTER to Confirm or ESC to Cancel:
32.6.3 Applying Remote Node Filters
Go to menu 11.5 (shown below – note that call filter sets are only present for PPPoE encapsulation)
and enter the number(s) of the filter set(s) as appropriate. You can cascade up to four filter sets by
entering their numbers separated by commas. The ZyWALL already has filters to prevent NetBIOS
traffic from triggering calls, and block incoming telnet, FTP and HTTP connections.
Press ENTER to Confirm or ESC to Cancel:
32-12
Menu 3.1 – LAN Port Filter Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=

Figure 32-12 Filtering LAN Traffic

Menu 5.1 – DMZ Port Filter Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=

Figure 32-13Filtering DMZ Traffic

Menu 11.5 – Remote Node Filter Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=

Figure 32-14 Filtering Remote Node Traffic

Filter Configuration