NETGEAR DGFV338 manual Blocking Internet Sites, Groups and Hosts

DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual

Table 4.1 Groups and Hosts

Item	Description
Known PCs and	This table lists all current entries in the Network Database. For each PC or
Devices	device, the following data is displayed.
	• Radio button – Use this to select a PC for editing or deletion.
	• Name – The name of the PC or device. Sometimes, this cannot be determined,
	and is listed as Unknown. In this case, you can edit the entry to add a
	meaningful name.
	• IP Address – The current IP address. For DHCP clients, where the IP address
	is allocated by the DHCP Server in this device, this IP address will not change.
	Where the IP address is set on the PC (as a fixed IP address), you may need
	to update this entry manually if the IP address on the PC is changed.
	• MAC Address – The MAC address of the PC. The MAC address is a low-level
	network identifier which is fixed at manufacture.
	• Group – Each PC or device must be in a single group. The Group column
	indicates which group each entry is in. By default, all entries are in Group 1.
Operations	• Group Assignment – You can select a group for any entry by selecting Edit.
	When the Edit Groups and Hosts screen displays, select the desired group
	from the pull-down menu in the Group column. Click Apply.
	• Adding a new Entry – If a PC is not connected, using a fixed IP, or a different
	LAN segment, it may not be listed. In this case, you can add it by adding it to
	the Add Known PCs and Devices and clicking Add.
	• Editing an Entry – To edit an entry, click Edit adjacent to the entry.
	• Deleting an Entry – If a PC or device has been removed from your network,
	you can delete it from the database. Select its radio button, and click Delete.
	• Edit Group Names – To edit Group names, click the Edit Group Names link at
	the top right of the screen. By default the group names are Group1 through
	Group 8, with Group 1 being the default group.

Blocking Internet Sites

If you want to reduce incoming traffic by preventing access to certain sites on the Internet, you can use the wireless firewall Web Components filtering and Key Word Blocking. By default, both are disabled; all requested traffic from any Web site is allowed. When enabled, if users try to access a blocked site, they see a “Blocked by NETGEAR” message.

•Web Components filtering – You can filter the following Web Component types: Proxy, Java, ActiveX, and Cookies. For example, by enabling Java filtering, “Java” files will be blocked. Certain commonly used web components can be blocked for increased security. Some of these components are can be used by malicious websites to infect computers that access them.

–Proxy – A proxy server (or simply, proxy) allows computers to route connections to other computers through the proxy, thus circumventing certain firewall rules. For example, if

4-24 Security and Firewall Protection

v1.0, April 2007