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ZyWALL 5/35/70 Series User’s Guide
217 Chapter 11 Firewall Screens
Figure 97 Default Rule (Bridge Mode)
The following table describes the labels in this screen.
Table 68 Default Rule (Bridge Mode)
LABEL DESCRIPTION
Enable Firewall Select this check box to activate the firewall. The ZyWALL performs access control
and protects against Denial of Service (DoS) attacks when the firewall is activated.
Packet Direction This is the direction of travel of packets (LAN to LAN/ZyWALL, LAN to WAN, LAN
to DMZ, LAN to WLAN, WAN to LAN, WAN to WAN/ZyWALL, WAN to DMZ,
WAN to WLAN, DMZ to LAN, DMZ to WAN, DMZ to DMZ/ZyWALL, DMZ to
WLAN, WLAN to LAN, WLAN to WAN, WLAN to DMZ or WLAN to WLAN/
ZyWALL).
Firewall rules are grouped based on the direction of travel of packets to which they
apply. For example, LAN to LAN/ZyWALL means packets traveling from a
computer/subnet on the LAN to either another computer/subnet on the LAN interface
of the ZyWALL or the ZyWALL itself.
Default Action Use the drop-down list boxes to select whether to Drop (silently discard), Reject
(discard and send an ICMP destination-unreachable message to the sender) or
Permit (allow the passage of) packets that are traveling in the selected direction.
Log Select the check box to create a log (when the above action is taken) for packets
that are traveling in the selected direction and do not match any of your customized
rules.