ZyXEL g-2000 plusv2 사용자 가이드

ZyXEL G-2000 Plus v2 User’s Guide

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Chapter 11 Firewall Screens

Figure 57   Default Rule 

The following table describes the labels in this screen.

Note: The ordering of your rules is very important as rules are applied in turn.

Click FIREWALL, then the Rule Summary tab to open the screen.

Table 49   Default Rule

Enable Firewall

Select this check box to activate the firewall. The 

ZyXEL device

 performs access 

control and protects against Denial of Service (DoS) attacks when the firewall is 

activated.

Allow 

Asymmetrical 

Route

Select this check box to have the 

ZyXEL device

 firewall permit the use of triangle 

route topology on the network. For more information on triangle route topology 

Packet Direction This is the direction of travel of packets ((W)LAN to (W)LAN/

, 

(W)LAN to WAN,  WAN to (W)LAN, WAN to WAN/

).

Firewall rules are grouped based on the direction of travel of packets to which they 

apply. For example, (W)LAN to (W)LAN/

 means packets traveling 

from a computer/subnet on the LAN to either another computer/subnet on the LAN 

interface of the 

ZyXEL device

 or the 

ZyXEL device

 itself. 

Default Action

Use the drop-down list boxes to select whether to Block (silently discard) or 

Forward (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 the rules below.

Apply

Click Apply to save your changes back to the 

ZyXEL device

.

Reset

Click Reset to begin configuring this screen afresh.