Advantech EDG-4508, User Manual

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Chapter 3 IP Address Configuration 21
DHCP Server
This section applies if you are using your Windows NT host as a DHCP
server. This type of server is set up to provide IP addresses for new
devices as they log onto a network. As the operation of EDG-4508/4516
requires a fixed IP address, we strongly recommend that you establish an
IP reservation list in DHCP in order to maintain fixed IP assignments
based on the server’s MAC address. EDG-4508/4516 ’s unique MAC
address, which is required when setting up the DHCP server, can be
found on the server’s back panel.
Note: For EDG-4508/4516 , the DHCP setting is ENABLED by
default.
1. Access DHCP Manager from the Windows NT desktop by clicking on
Start —> Programs —> Administrative Tools —> DHCP Manager.
2. The left info box of the DHCP Manager window will show a list of
DHCP hosts currently hooked up to the network.
Note that before you can make changes to the host’s parameters,
there must be a minus sign (-) located to the left of the server name
(Local Machine in the example shown below.) If, as shown, there is a
plus sign (+) to the left of the server name, use the left mouse button
to click on the name of the host until the minus sign appears.
3. You must now define the DHCP server “scope”.
A scope is simply a range of IP addresses that the server assigns to
machines as they log onto the network. Since the assignment is dy-
namic, the IP address assigned to a particular device can change each
time the device is logged in. What we will do is use DHCP Manager to
set aside a specific IP address that will always be assigned to your
EDG-4508/4516 when it is hooked up to the network. When the device
is not hooked up, the reserved IP address is not used.
If you have already defined a scope, continue with step 5 below.