ZyXEL NBG6615 User Guide - Page 102
MAC Filter Screen
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Chapter 13 Firewall The following table describes the labels on this screen. Table 37 Security > Firewall > Services LABEL DESCRIPTION ICMP Respond to Ping on WAN VPN Passthrough Internet Control Message Protocol (ICMP) 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. The NBG6615 will not respond to any incoming Ping requests when the check box is not selected. Select the check box to reply to incoming WAN Ping requests. Select the checkbox to enable the advanced pass through features: Apply Reset • IPSEC Passthrough: Select this option to allow the NBG6615 to pass through VPN traffic using the IPsec protocol. • PPTP Passthrough: Select this option to allow the NBG6615 to pass through VPN traffic using PPTP. • L2TP Passthrough: Select this option to enable computers on your LAN to make L2TP VPN connections to servers on the Internet. Click Apply to save the settings. Click Reset to start configuring this screen afresh. 13.6 MAC Filter Screen Use this screen to enable or disable MAC address filtering, which enables selected MAC addresses to bypass the firewall. Click Security > Firewall > MAC Filter Screen. The screen appears as shown next. Figure 68 Security > Firewall > Services NBG6615's User's Guide 102