D-Link NetDefendOS User Manual page 398

• A specific IP address.
This is the IP address of the DHCP relayer through which the DHCP request has come.
Requests from local clients or other DHCP relayers will be ignored.
IPv4 DHCP Options
The following options can be configured for a DHCP server:
General Parameters
Name
Interface Filter
Relay Filter
IP Address Pool
Netmask
Optional Parameters
Default GW
Domain
Lease Time
Primary/Secondary DNS
Primary/Secondary NBNS/WINS
Next Server
DHCP Server Advanced Settings
There are two advanced settings which apply to all DHCP servers:
• Auto Save Policy
A symbolic name for the server. Used as an interface reference but also
used as a reference in log messages.
The source interface on which NetDefendOS will listen for DHCP
requests. This can be a single interface or a group of interfaces.
A filter for the relay address. The possible values for this and their
meanings are listed earlier in this section.
An IP range, group or network that the DHCP server will use as an IP
address pool for handing out DHCP leases.
The netmask which will be sent to DHCP clients.
This specifies what IP should be sent to the client for use as
the default gateway (the router to which the client
connects).
The domain within which users are situated. When a user
types a simple string into a browser instead of a valid URL,
the domain property value can be appended by the
browser to form a URL. For example, if the Domain value is
"example.com", when the user types just the word " wiki",
the browser can try the URL "wiki.example.com".
The time, in seconds, that a DHCP lease is provided. After
this time the DHCP client must renew the lease.
The IP of the primary and secondary DNS servers.
IP of the Windows Internet Name Service (WINS) servers that
are used in Microsoft environments which uses the NetBIOS
Name Servers (NBNS) to assign IP addresses to NetBIOS
names.
Specifies the IP address of the next server in the boot
process. This is usually a TFTP server.
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Chapter 5: DHCP Services