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the single local computer into a DMZ. This makes the single computer look
like it is directly on the Internet, and others can access this machine.
Your machine isn't really directly connected to the Internet, and it really has
an internal local network address. When you provide the servers network
address to others, you must provide the address of the Lynx L-320. The Lynx
L-320 "fakes" the connection to your machine.
You should use the DMZ when you want to run a server that others will
access from the Internet. Internal programs and servers (like print servers,
etc) should NOT be connected to the DMZ
What is a Gateway?
The Internet is so large that a single network cannot handle all of the traffic
and still deliver a reasonable level of service. To overcome this limitation,
the network is broken down into smaller segments or subnets that can
deliver good performance for the stations attached to that segment. This
segmentation solves the problem of supporting a large number of stations,
but introduces the problem of getting traffic from one subnet to another.
To accomplish this, devices called routers or gateways are placed between
segments. If a machine wishes to contact another device on the same
segment, it transmits to that station directly using a simple discovery
technique. If the target station does not exist on the same segment as the
source station, then the source actually has no idea how to get to the target.
One of the configuration parameters transmitted to each network device is
its default gateway. This address is configured by the network
administrators and it informs each personal computer or other network
device where to send data if the target station does not reside on the same
subnet as the source. If your machine can reach all stations on the same
subnet (usually a building or a sector within a building), but cannot
communicate outside of this area, it is usually because of an incorrectly
configured default gateway.
