ZyXEL NBG334W User Guide - Page 131
Table 51
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Figure 71 Security > Firewall > Services Chapter 12 Firewall The following table describes the labels in this screen. Table 51 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 The NBG334W will not respond to any incoming Ping requests when Disable is selected. Select LAN to reply to incoming LAN Ping requests. Select WAN to reply to incoming WAN Ping requests. Otherwise select LAN & WAN to reply to both incoming LAN and WAN Ping requests. NBG334W User's Guide 131