ZyXEL EX5510-B0 User Guide - Page 199

Security > Firewall, General, LABEL, DESCRIPTION

Page 199 highlights

Chapter 16 Firewall Note: When the security level is set to High, Telnet, FTP, HTTP, HTTPS, DNS, IMAP, POP3, SMTP, and/or IPv6 ICMPv6 (Ping) traffic from the LAN are still allowed. Click Security > Firewall to display the General screen. Figure 120 Security > Firewall > General The following table describes the labels in this screen. Table 77 Security > Firewall > General LABEL DESCRIPTION IPv4 Firewall Use the switch to turn on or off the firewall feature on the Zyxel Device for IPv4 traffic. When the switch goes to the right , the function is enabled. Otherwise, it is disabled. IPv6 Firewall Use the switch to turn on or off the firewall feature on the Zyxel Device for IPv6 traffic. When the switch goes to the right , the function is enabled. Otherwise, it is disabled. Low Select Low to allow traffic from LAN to WAN or from WAN to LAN. Medium Select Medium to allow traffic from LAN to WAN but deny traffic from WAN to LAN. High Select High to deny both directions of travel of packets (LAN to WAN and WAN to LAN). Cancel Click Cancel to restore the default or previously saved settings. Apply Click Apply to save your changes. EX5510-B0 User's Guide 199

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Chapter 16 Firewall
EX5510-B0 User’s Guide
199
Note: When the security level is set to
High
, Telnet, FTP, HTTP, HTTPS, DNS, IMAP, POP3, SMTP,
and/or IPv6 ICMPv6 (Ping) traffic from the LAN are still allowed.
Click
Security > Firewall
to display the
General
screen.
Figure 120
Security > Firewall > General
The following table describes the labels in this screen.
Table 77
Security > Firewall > General
LABEL
DESCRIPTION
IPv4 Firewall
Use the switch to turn on or off the firewall feature on the Zyxel Device for IPv4 traffic. When the
switch goes to the right
, the function is enabled. Otherwise, it is disabled.
IPv6 Firewall
Use the switch to turn on or off the firewall feature on the Zyxel Device for IPv6 traffic. When the
switch goes to the right
, the function is enabled. Otherwise, it is disabled.
Low
Select
Low
to allow traffic from LAN to WAN or from WAN to LAN.
Medium
Select
Medium
to allow traffic from LAN to WAN but deny traffic from WAN to LAN.
High
Select
High
to deny both directions of travel of packets (LAN to WAN and WAN to LAN).
Cancel
Click
Cancel
to restore the default or previously saved settings.
Apply
Click
Apply
to save your changes.