ZyXEL Communications VMG1312-T10C, User Manual

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Chapter 14 Firewall
VMG1312-T10C User’s Guide
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The following table describes the labels in this screen.
14.3 Default Action Screen
Use this screen to set the default action that the firewall takes on packets that do not match any of
the firewall rules. Click
Security > Firewall > Default Action to display the following screen.
Figure 105
Security > Firewall > Default Action
Table 60
Security > Firewall > General
LABEL DESCRIPTION
High This setting blocks all traffic to and from the Internet. Only local network traffic and LAN to WAN
service (Telnet, FTP, HTTP, HTTPS, DNS, POP3, SMTP) is permitted.
Medium This is the recommended setting. It allows traffic to the Internet but blocks anyone from the
Internet from accessing any services on your local network.
Low This setting allows traffic to the Internet and also allows someone from the Internet to access
services on your local network. This would be used with Port Forwarding, Default Server.
Custom This setting allows the customer to create and edit individual firewall rules.
Firewall rules can be created in the Default Action screen ( Section 14.3 on page 156 ) and Rules
screen ( Section 14.4 on page 157 ).
Off This setting is not recommended. It disables firewall protection for your network and could
potentially expose your network to significant security risks. This option should only be used for
troubleshooting or if you intend using another firewall in conjunction with your router.
Apply Click this to save your changes.
Cancel Click this to restore your previously saved settings.