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Reviewed by: Bryan Pizzuti [02.18.03]
Edited by: Carl Nelson
Manufactured by: D-Link

Dual-Mode PC Card NIC: $129
Dual-Mode PCI Card: $129
Dual-Mode Router: $270

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This router can set the network to be invisible to all but the the network cards you specify here by their MAC address, or this list can be used as a list of cards to deny access to the network. Also, the router can be set so that the network will not even be visible unless the network card is specified in the router as being allowed to have access. Remember, MAC addresses can be cloned, but there are so many possible combinations that randomly trying them or "brute-forcing" could take years, especially if the permitted MAC list is quite short.

The Special Applications settings are also a common feature, but D-Link provides more pre-set configurations for several applications that might need this sort of configuration, such as Quick Time 4, and MSN Gaming Zone.

Another common router feature, the IP filters are pretty good for denying certain workstations access to the Internet, such as terminals in public areas, or maybe the PC in the kid's room.  These features are also schedulable, so people can be restricted from the internet by time of day.  This is a GREAT feature for parents, though not so great for the kid who wants to stay up all night playing Unreal Tournament 2003 online.  And if you just want to restrict FTP, or web, or chat access, individual ports can be restricted, rather than just cutting the computer off from the Internet completely. D-Link also built-in a website filter, and though it's not as powerful as many website blockers, it's harder to bypass.  Any website containing the keywords entered here will be completely blocked off by the router, before it even makes it to any PCs on the network.  All one has to do is enter the keywords to block.

The dialog pictured here is very advanced, and similar to some of the setup options I've seen when working with Cisco enterprise-class routers, only through a web-based interface.  D-Link calls it Firewall Rules, but it's more commonly known as an ACL, or Access Control Lists. This is an EXTREMELY powerful tool for permitting or denying very particular types of traffic through the router in one direction or the other.  This list will automatically contain anything that was entered in the Virtual Services dialog, so those entries can be "tweaked" here.  Scheduling capability is present here as well.

The DMZ option is a simple way to make a computer 100% visible to the Internet.  This is a very dangerous option to implement, so use with caution.

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