General; Services - ZyXEL NBG4115 Bedienungsanleitung

Chapter 13 Firewall

13.2 General

Use this screen to enable or disable the NBG4115's firewall, and set up firewall
logs. Click Security > Firewall to open the General screen.
Figure 74 Security > Firewall > General l
The following table describes the labels in this screen.
Table 50 Security > Firewall > General
LABEL
Enable Firewall
Apply
Reset

13.3 Services

If an outside user attempts to probe an unsupported port on your NBG4115, an
ICMP response packet is automatically returned. This allows the outside user to
know the NBG4115 exists. Use this screen to prevent the ICMP response packet
from being sent. This keeps outsiders from discovering your NBG4115 when
unsupported ports are probed.
You can also use this screen to enable service blocking, enter/delete/modify the
services you want to block and the date/time you want to block them.
144
DESCRIPTION
Select this check box to activate the firewall. The NBG4115 performs
access control and protects against Denial of Service (DoS) attacks
when the firewall is activated.
Click Apply to save the settings.
Click Reset to start configuring this screen again.
User's Guide