Moxa Technologies EtherDevice User Manual page 47

STEP 3
You must now define the DHCP server "scope."
A scope is a range of IP addresses that the server can choose from to assign to hosts as
they log onto the network. Since the assignment is dynamic, the IP address assigned to a
particular host can change each time the host logs in. What we will do is use DHCP
Manager to set aside a specific IP address that will always be assigned to your MOXA
EtherDevice Server when it is connected to the network. When EDS is not connected to
the network, the reserved IP address is not used.
If you have already defined a scope, continue with STEP 10 below.
STEP 4
To get started, click on DHCP Options and then chose Scope from the pull down menu.
STEP 5
Once the Create Scope (Local) window opens (see below), you will be required to
input a range of IP addresses in the IP Address Pool.
There is also an Exclusion Range used to prevent the DHCP Server from issuing
addresses to existing devices that have already been assigned IP addresses from this
range. By using the Add and Remove buttons, several different ranges can be excluded,
and later included.
STEP 6
Another item that must be attended to is the Subnet Mask. This is a number that is
combined with a device's IP address to determine which subnet the device belongs to.
For a Class C address you should input 255.255.255.0, and for Class B addresses use
255.255.0.0.
How To Use MOXA EtherDevice Server
MOXA EtherDevice Server User's Manual 5-7