ZyXEL Communications wireless n gigabit netusb router ICMP, Rule, Apply, Apply, Apply, Apply, below), service, Service Name, Respond to Ping, Enable Firewall, Dest IP Address, Add Firewall Rule

Chapter 24 Firewall

Click Security > Firewall > Services. The screen appears as shown next. Figure 121 Security > Firewall > Services l

The following table describes the labels in this screen.

Table 76 Security > Firewall > Services

LABEL	DESCRIPTION
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 NBG4615 will not respond to any incoming Ping requests when Disable is
on	selected. Select WAN to reply to incoming WAN Ping requests.
Apply	Click Apply to save the settings.
Enable Firewall Rule
Enable Firewall	Select this check box to activate the firewall rules that you define (see Add
Rule	Firewall Rule below).
Apply	Click Apply to save the settings.
Add Firewall Rule
Service Name	Enter a name that identifies or describes the firewall rule.
Dest IP Address	Enter the IP address of the computer to which traffic for the application or
	service is entering.
	The NBG4615 applies the firewall rule to traffic initiating from this computer.
Source IP Address	Enter the IP address of the computer that initializes traffic for the application or
	service.
	The NBG4615 applies the firewall rule to traffic initiating from this computer.

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	NBG4615 User’s Guide