D-Link NetDefend SOHO DFL-160, User Manual

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7.2. Licenses
The license page shows information about the current license installed in the DFL-160. When the
DFL-160 is initially delivered it comes with a standard license preinstalled which determines the
capabilities of the system.
Add On Services
It is possible to expand the capabilities of the DFL-160 by purchasing a license for any of the
following features:
• Anti-Virus
This option enables NetDefendOS to scan for viruses in any files downloaded to the unit, such
as those that might be contained in HTTP or FTP downloads.
• Intrusion Detection and Prevention (IDP)
This option enables NetDefendOS to scan traffic for patterns that indicate attempted network
intrusions. These are most often directed against internal servers.
• Web Content Filtering
The option enables NetDefendOS to check the URLs requested during web surfing to see if the
content type at the URL is allowed by administrator defined policies.
Activating a Service
After buying a subscription to a new service from your D-Link distributor or sales office, an
activation code is received which can then be entered into the license page to activate the service.
License Properties
Each DFL-160 comes pre-installed with a standard NetDefendOS license. This page of the web
interface shows the contents of the current license. The license determines the maximum capabilities
of the system and the parameters in a license are as follows:
• Connections
This is the number of connections that can exist between interfaces in the NetDefendOS. A
connection refers to a logical concept in the state engine of the NetDefendOS software. A single
TCP based transfer can be regarded as a single connections but a UDP based data stream, such
as used with VOIP data transfers, can also be viewed as consisting of a connection.
The connection restriction can result in limitations on the total number of client users that can be
accessing Internet based facilities at the same time.
• Rules
This is the maximum number of IP rules that can be created by NetDefendOS. An IP rule
determines what protocols can flow between what interfaces in the DFL-160. The default value
is normally sufficient.
• IPsec Tunnels
The maximum number of IPsec tunnels which terminate at the WAN interface that can be
created.
7.2. Licenses Chapter 7. The Maintenance Menu
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