ZyXEL Communications nbg-418n 사용자 설명서
Chapter 12 Firewall
NBG-418N User’s Guide
113
Figure 79
Security > Firewall > General
The following table describes the labels in this screen.
12.5 Services Screen
Use the Services screen to enable or disable ICMP and VPN passthrough features.
Click Security > Firewall > Services. The screen appears as shown next.
Figure 80
Security > Firewall > Services
The following table describes the labels in this screen.
Table 49
Security > Firewall > General
LABEL
DESCRIPTION
Enable Firewall
Select this check box to activate the firewall. The NBG-418N performs access control and
protects against Denial of Service (DoS) attacks when the firewall is activated.
protects against Denial of Service (DoS) attacks when the firewall is activated.
Apply
Click Apply to save the settings.
Reset
Click Reset to start configuring this screen again.
Table 50
Security > Firewall > Services
LABEL
DESCRIPTION
ICMP
Internet Control Message Protocol is a message control and error-reporting protocol
between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP)
datagrams, but the messages are processed by the TCP/IP software and directly apparent
to the application user.
between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP)
datagrams, but the messages are processed by the TCP/IP software and directly apparent
to the application user.
Respond to Ping
on WAN
on WAN
The NBG-418N will not respond to any incoming Ping requests when Disable is selected.
Select Enable to reply to incoming WAN Ping requests.
Select Enable to reply to incoming WAN Ping requests.