SECURITY & FIREWALL
5.0/ SECURITY & FIREWALL
The firewall is the cornerstone of the security suite for your Gateway. It has been
exclusively tailored to the needs of the residential or office user and is pre-
configured to provide optimum security.
The firewall provides both the security and flexibility that office users seek. It
provides a managed, professional level of network security while enabling the
safe use of interactive applications, such as video conferencing.
Additional features, including surfing restrictions and access control, can also be
configured locally through the user interface or remotely by a service provider.
The firewall regulates the flow of data between the local network and the
internet. Both incoming and outgoing data are inspected, then either accepted
and allowed to pass through your Gateway or rejected and barred from passing
through your Gateway, according to a flexible and configurable set of rules.
These rules are designed to prevent unwanted intrusions from the outside, while
allowing local network users access to internet services.
The firewall rules specify the type of services on the internet that are accessible
from the local network and types of services in the local network that are
accessible from the internet.
Each request for a service that the firewall receives is checked against the
firewall rules to determine whether the request should be allowed to pass
through the firewall. If the request is permitted to pass, all subsequent data
associated with this request or session is also allowed to pass, regardless of its
direction.
For example, when accessing a website on the internet, a request is sent to
the internet for this site. When the request reaches your Gateway, the firewall
identifies the request type and origin, such as HTTP and a specific computer in
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