ZyXEL NBG-418N User Guide - Page 113
Services Screen
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Figure 79 Security > Firewall > General Chapter 12 Firewall 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 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. NBG-418N User's Guide 113