ELSA LANCOM Business 6000, Manual

Page: 72 / 174

Operating modes and functions
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ELSA LANCOM Business 6000
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72
EN
cd Setup/DNS-Module/Filter-list
set 001 www.offlimits-domain.com 0.0.0.0 0.0.0.0
This entry (with the index '001') prohibits this domain for all of the
computers in the local network. The index '001' was selected freely and
is only intended to enhance the overview. The wildcards '?' (stands for
exactly one character) and '*' (for a random number of characters) are
valid when entering the domain. For example, if only a single computer
(IP 10.0.0.123) is to be prohibited from accessing DE-domains, enter:
set 002 *.de 10.0.0.123 255.255.255.255
The hit list in the DNS statistics contains the 64 most frequently requested
names and provides a good basis for setting up the filter list.
If your LAN uses subnetting, you can also apply filters to individual
departments by carefully selecting the IP addresses and subnet masks.
The IP address '0.0.0.0' stands for all computers in the network, and the
subnet mask '0.0.0.0' for all networks.
6.6 NetBIOS proxy
With the NetBIOS proxy function, a ELSA LANCOM Business can also route
NetBIOS packets or respond locally as a proxy. As a result, it is now possible
to economically link Windows networks using the router function.
This section describes the general functions of NetBIOS proxy, as well as the
configuration of the router and workstations for the interconnection of
Windows networks.
6.6.1 To the point: What is NetBIOS?
NetBIOS provides a simple, trouble-free means of networking multiple
computers. An important example for NetBIOS networks is the Windows
network, with which several Windows workstations can be networked simply
by sharing the resources (drives or printers) of the individual computers with
the other participants.