ZyWALL Series Internet Security Gateway
Filter Configuration
32-17
If you do not activate the firewall, it is advisable to apply filters.
32.6.1 Applying LAN Filters
LAN traffic filter sets may be useful to block certain packets, reduce traffic and prevent security breaches.
Go to menu 3.1 (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. For
PPPoE or PPTP encapsulation, you have the additional option of
specifying remote node call filter sets.
Figure 32-13 Filtering LAN Traffic
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. The DMZ port is not available on
all models.
Menu 3.1 – LAN Port Filter Setup
Input Filter Sets:
protocol filters=
device filters=
Output Filter Sets:
protocol filters=
device filters=
Press ENTER to Confirm or ESC to Cancel:
Summary of Contents for Internet Security Gateway ZyWALL 100
Page 1: ...ZyWALL 10W 30W 50 100 Internet Security Gateway User s Guide Version 3 62 February 2004 ...
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Page 124: ...ZyWALL Series Internet Security Gateway 8 16 WAN Screens Figure 8 10 Dial Backup Setup ...
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Page 235: ...ZyWALL Series Internet Security Gateway VPN Screens 15 11 Figure 15 5 VPN IKE ...
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Page 282: ...ZyWALL Series Internet Security Gateway 16 20 Certificates Figure 16 9 Trusted CA Details ...
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Page 351: ...Logs IX Part IX Logs This part provides information and instructions for the logs and reports ...
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Page 356: ...ZyWALL Series Internet Security Gateway 20 4 Log Screens Figure 20 2 Log Settings ...
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Page 365: ...Maintenance X Part X Maintenance This part covers the maintenance screens ...
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