ZyXEL Communications LTE3302-M432 - Page 114

Chapter 14 Firewall
LTE3302-M432 & LTE3312-M432 User’s Guide
114
Figure 79 Configuration > Security > Firewall > Services l
The following table describes the labels in this screen.
Table 51 Configuration > 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 LTE 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 all incoming LAN and WAN Ping requests.
Apply Click Apply to save the settings.
WAN Stealth Mode
Enable WAN
Stealth Mode
Select this check box to silently discard the matched packets without sending a TCP reset
packet or an ICMP destination-unreachable message to the sender.
Apply Click Apply to save the settings.
Enable Firewall Rule
Enable Firewall
Rule
Select this check box to activate the firewall rules that you define (see Add Firewall Rule
below).
Apply Click Apply to save the settings.
Black List / White List