SMC Networks Barricade SMCWGBR14-N User Manual page 58

Advanced_Inbound Filter
When you use the Virtual Server, Gaming, or Remote Administration features to open
specific ports to traffic from the Internet, you could be increasing the exposure of your LAN
to cyber attacks from the Internet. In these cases, you can use Inbound Filters to limit that
exposure by specifying the IP addresses of internet hosts that you trust to access your LAN
through the ports that you have opened. You might, for example, only allow access to a
game server on your home LAN from the computers of friends whom you have invited to
play the games on that server.
Inbound Filters can be used for limiting access to a server on your network to a system or
group of systems. Filter rules can be used with Virtual Server, Gaming, or Remote
Administration features. Each filter can be used for several functions; for example a "Game
Clan" filter might allow all of the members of a particular gaming group to play several
different games for which gaming entries have been created. At the same time an "Admin"
filter might only allows systems from your office network to access the WAN admin pages
and an FTP server you use at home. If you add an IP address to a filter, the change is
effected in all of the places where the filter is used.
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