ZyXEL Communications nbg-418n 12.5 Services Screen, Apply, Reset, Enable

Chapter 12 Firewall

Figure 79 Security > Firewall > General

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.
Apply	Click Apply to save the settings.
Reset	Click Reset to start configuring this screen again.

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 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.
Respond to Ping	The NBG-418N will not respond to any incoming Ping requests when Disable is selected.
on WAN	Select Enable to reply to incoming WAN Ping requests.

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NBG-418N User’s Guide