ZyXEL Communications Corporation AMG1302T10B Manuel D’Utilisation

Chapter 15 Firewall

AMG1302/AMG1202-TSeries User’s Guide

The following table describes the labels in this 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.

Security > Firewall > Default Action 

Security > Firewall > General

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 (

) and Rules 

screen (

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 ZyXEL router.

Apply

Click this to save your changes.

Cancel

Click this to restore your previously saved settings.