D-Link NetDefendOS is the software engine that drives and controls all D-Link Firewall products.

Designed as a network security operating system, NetDefendOS features high throughput performance with high reliability plus super-granular  control. NetDefendOS offers seamless integration of all subsystems with in-depth administrative control of all functionality and minimal attack surface that helps negate the risk of being a target for security attacks.

NetDefendOS is an extensive feature-rich network operating system that presents some of the most essential features, such as:

• Firewall
• Intrusion Detection and Prevention
• Anti-Virus
• Web Content Filtering
• VPN
• Traffic Management
• IP Routing
• Address Translation
• ZoneDefense
• Comprehensive Operations and Maintenance features
  

The SmartConsole Utility is a configuration wizard that easily allows customers to discover multiple D-Link web smart switches within the same L2 network segment connected to  user’s local PC.
Specialized for D-Link Web Smart Switch series, it provides easy initial setting of smart switches. Using this wizard, the administrator can do the following task:
- View events log and traps
- Do some configurations for any D-Link Switch discovered by SmartConsole Utility
- Change the device password for any D-Link Switch discovered by SmartConsole Utility
- Firmware Upgrade

In Port-based 802.1x authentication, once a port is authorized by a client, then the other users connecting to the same port (using Hub/ switch) can pass through the switch and access network resources without the need to be authenticated.

In MAC-based 802.1x authentication, all users trying to access the network will be authenticated (username and password), and the switch will check in its database whether the maximum MAC address allowed has been reached. If the maximum has been reached,  the users will not be able to access the network.

Green Ethernet for D-Link Web Smart Switch Series
Model	Available Port	Number of Active Port	Power Saving Percentage
DGS-1216T	16	16	28%
		0	32%
DGS-1224T	24	24	25%
		0	23%
DGS-1248T	48	48	22%
		0	21%

In contrast to SAN, Network Attached Storage (NAS) uses file-based protocols such as NFS or SMB/CIFS, and recognizes the storage as remote, where connected computers request only a portion of an abstract file rather than a disk block.

This is probably because Apache is not installed on your computer. As Apache is an open source program which is not included in the Traffic Report installation CD.

To download the software needed for the installation of Traffic Report, click here.

Green Ethernet is a technology that implements special power-saving features which detect link status and cable length to adjust power usage.

Green Ethernet technology saves energy in two specific ways:

• Method 1: If there is no link on a switch port, such as when there is no computer connected to the port or the connected computer is powered off, Green Ethernet will enter into a 'sleep mode' to reduce power used for that port.
• Method 2: D-Link Green Ethernet detects the length of the Ethernet cable connected to the switch and adjusts power usage accordingly without affecting performance. In this way, if a port is connected with a cable less than 20 meters, it will only use as much power as it needs instead of full power, which is only needed for 100 meter cables.

For more information on D-Link's Green Ethernet, click here.

This is because the default management IP address is 192.168.0.0/255.255.255.0.

To change the managment IP address, please go to System->General->Management IP Address List.

Using NAP, administrator can create customized health requirement policies to validate computer health before allowing network access or communication, configure automatic update of computer system software to ensure ongoing compliance, and/or optionally confine non-compliant computers to a restricted network until they become compliant.

NAP technology is currently being researched for beta testing for inclusion into Microsoft Windows Vista and Windows Server 2008.

D-Link Switches that support NAP feature are:

• DGS-3600 Series
• DGS-3400 Series
• DES-3800 Series
• DES-3500 Series

Suppose the following rules have been applied to privileged users in DSA-6100 V2.

Global Policy	Firewall	Specific route	Bandwidth	VLAN isolation plan	Session Limit
IP privileged user	Y	Y	Not available in Global policy	Y	Y

Global Policy	Firewall	Specific route	Bandwidth	VLAN isolation plan	Session Limit
MAC privileged user	Y	Y	Not available in Global policy	Y	Y

MAC Policy	Firewall	Specific route	Bandwidth	VLAN isolation plan	Session Limit
MAC privileged user	Y	Not used	Not used	Not used	Not used

Based on the table shown above, the summary for the policy settings will be as follows:

• IP privileged users are governed by the Global policy, which does not have bandwidth limit
• MAC privileged users are governed by the Global policy, which does not have bandwidth limit
• MAC privileged users are governed by firewall rules only under the policy selected for a MAC privileged users