Chapter 11 Firewall

Figure 71 Firewall Services

The following table describes the labels in this screen.

Table 47 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

The ZyXEL Device will not respond to any incoming Ping requests when Disable

on

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.

 

 

 

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ZyXEL NBG-334SH User’s Guide