ZyXEL p-334wh Mode D'Emploi

P-334WH User’s Guide

Chapter 12 Firewall

139

Figure 77   Firewall Services

The following table describes the labels in this screen.

Table 54   Firewall Services

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 ZyXEL Device 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.