ZyXEL Communications ZyWALL 2 Plus - Manual (Page 207)

Chapter 11 Firewall
ZyWALL 2 Plus User’s Guide
207
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The ordering of your rules is very important as rules are applied in the order
that they are listed.
See Section 11.1 on page 191 for more information about the firewall.
• When the ZyWALL is in bridge mode, enable the default WAN to LAN firewall rule for
the BOOTP_CLIENT service to let DHCP clients behind the ZyWALL use a DHCP
server on the WAN.
• Enable the default WAN to LAN firewall rule for the NetBIOS service to let computers
behind the ZyWALL access devices on the WAN using computer names.
Figure 137 SECURITY > FIREWALL > Rule Summary
The following table describes the labels in this screen.
Table 50 SECURITY > FIREWALL > Rule Summary
LABEL DESCRIPTION
Packet Direction Use the drop-down list boxes and click Refresh to select a direction of travel of
packets for which you want to display firewall rules.
Note: The VPN connection directions apply to the traffic going to or
from the ZyWALL’s VPN tunnels. They do not apply to other
VPN traffic for which the ZyWALL is not one of the gateways
(VPN pass-through traffic).
+/- In the heading row, click + to expand or - to collapse the Source Address,
Destination Address and Service Type drop down lists for all of the displayed
rules.
Default Policy This field displays the default action you selected in the Default Rule screen for the
packet direction displayed.