Static Dhcp Hosts; Dhcp Server Objects - D-Link DFL-260E User Manual

5.2.1. Static DHCP Hosts

The asterisk "*" before a MAC address means that the DHCP server does not track the client using
the MAC address but instead tracks the client through a client identifier which the client has given
to the server.
Additional Server Settings
A NetDefendOS DHCP server can have two other sets of objects associated with it:
• Static Hosts.
• Custom Options.
The illustration below shows the relationship between these objects.
The following sections discuss these two DHCP server options.
5.2.1. Static DHCP Hosts
Where the administrator requires a fixed relationship between a client and the assigned IP address,
NetDefendOS allows the assignment of a given IP to a specific MAC address. In other words, the
creation of a static host.
Static Host Parameters
Many such assignments can be created for a single DHCP server and each object has the following
parameters:
Host
MAC Address
Client Identified
Tip: Lease database saving
DHCP leases are, by default, remembered by NetDefendOS between system restarts.
The DHCP advanced settings can be adjusted to control how often the lease database
is saved.
Figure 5.1. DHCP Server Objects
This is the IP address that will be handed out to the client.
This is the MAC address of the client. Either the MAC address can be
used or the alternative Client Identified parameter can be used.
If the MAC address is not used for identifying the client then the client
can send an identifier in its DHCP request. The value of this identifier
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Chapter 5. DHCP Services