334 Third Edition

Configuring the Network

NPort Server Lite User’s Manual 3-7

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 dynamic, the IP address assigned to a

particular device can change each time the device logs in. What we will do is use

DHCP Manager to set aside a specific IP address that will always be assigned to your

NPort Server Lite 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 6 below.

4. To get started, click on DHCP Options and then chose Scope from the pull down

menu.

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.

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.

7. Make sure the Unlimited option under Lease Duration is checked. This prevents the

system from automatically disconnecting devices that are using IP addresses in the

specified range.