Configuration: Firewall / NAT

This page allows you to enable or disable the Firewall and Intrusion Detection feature in the ADSL Router. By default, security feature is disabled.

At the navigation panel of your ADSL Web Management, click on Expert Mode > Firewall / NAT.


Security State
Security

Security refers to the Network Address Translation (NAT) features. By default, security is enabled.

Firewall Enabled: Firewall feature is activated. All IP traffic on existing security interfaces that are NOT featured in a Firewall policy is blocked.
Disabled:  Firewall feature is not activated.
Intrusion Detection To enable/disable the detection of any illegitimate users.
Enabled: Your network is able to detect intrusion.
Disabled: Your network is not able to detect any intrusion.
Security Level
Security level Applicable only when Firewall feature is enabled. Once you have selected a security level, all IP traffic except the default policies specified will be blocked by the Firewall.
none - blocks all IP traffic for every security interface.
High - Your system uses the high firewall security level, providing a high level of firewall security between interfaces.
Medium - Your system uses the medium firewall security level, providing a medium level of firewall security between interfaces.
Low - Your system uses the low firewall security level, providing a low level of firewall security between interfaces.
Security Interfaces
Name A name that identifies an existing security interface.
Type  external: An interface that connects to the external network.
internal: An interface that connects to the internal network.
NAT Network Address Translation. Is enabled by default.
Policies, Triggers and Intrusion Detection
Firewall Policy Configuration Allows you to create a policy between two interface types. (A policy is the collective term for the rules that apply to incoming and outgoing traffic between two interface types).
Firewall Trigger Configuration Allows you to add trigger to the Firewall feature. A trigger allows an application to open a secondary port in order to transport packets. The trigger opens a secondary port dynamically, and allows you to specify the length of time that it can remain inactive before it is closed.
Configure Intrusion Detection To enable/disable the detection of any illegitimate users.

Security Interfaces have been defined by default. You may delete the existing interfaces before adding a new one.

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