ZyWALL 5/35/70 Series User’s Guide
11.6 Firewall Default Rule (Router Mode)
Click SECURITY, FIREWALL to open the Default Rule screen. Enable (or activate) the firewall by selecting the Enable Firewall check box.
Use this screen to configure general firewall settings when the ZyWALL is set to router mode.
Figure 96 Default Rule (Router Mode)
The following table describes the labels in this screen.
Table 67 Default Rule (Router 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. |
Allow | Select this check box to have the ZyWALL firewall permit the use of triangle route |
Asymmetrical | topology on the network. |
Route |
|
| Note: Allowing asymmetrical routes may let traffic from the WAN go |
| directly to a LAN computer without passing through the |
| ZyWALL. See Appendix I on page 718 for more on triangle |
| route topology and how to deal with this problem. |
|
|
215 | Chapter 11 Firewall Screens |