Firewall - Siemens 4100 Series User Manual

Router User's Guide

Firewall

A firewall is a system designed to prevent unauthorized access to or from a private network. The firewall
is designed to protect hosts located on the Local Area Network (LAN) from attacks initiated on the Wide
Area Network (WAN). Protection is not provided for attacks initiated from the LAN. Due to the nature of
firewall operations and the system resources required to service these operations, firewall operations may
degrade the performance of the Router – especially under heavy network traffic loads.
The firewall menu item accessible from the left navigation pane of the Web interface expands to provide a
list of options to be enabled or disabled as well as links to configure the more complex details of each
security feature.
Level Set the firewall security level.
Snooze Temporarily disable the firewall. It is important to note that when the firewall is snoozing
all protection provided by the firewall is disabled.
DMZ Configure firewall DMZ for controlling a virtual DMZ on the Local Area Network. The
purpose of the DMZ is to redirect suspicious network traffic received from a public WAN
to a secured LAN-side host dedicated to this purpose.
Filter Rules Add and delete custom inbound and outbound firewall rules.
Log View log listing of firewall activity including records of denial of access, reason codes,
and descriptions.
ADS Configure what events the internal Attack Detection System (ADS) will protect against
and log from a list of well-known attacks initiated on the Wide Area Network.
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Monitoring Network Health