Configuring the Device as a DHCP Server (NSM Procedure)
The Dynamic Host Configuration Protocol
(DHCP) server provides a framework for passing configuration information
to client hosts (such as PCs) on a TCP/IP network. A router or interface
that acts as a DHCP server can allocate network IP addresses and deliver
configuration settings to client hosts without user intervention.
DHCP access service minimizes the overhead required to add clients
to the network by providing a centralized, server-based setup. You
do not have to manually create and maintain IP address assignments
for clients.
To configure the device as a DHCP server for
a subnet and a single client:
- In the NSM navigation tree, select Device Manager > Devices.
- Click the Device Tree tab
and then double-click the device for which you want to configure a
DHCP server.
- Click the Configuration tab.
In the configuration tree, select System > Services
> Dhcp.
- Add or modify DHCP settings as specified in Table 1.
- Click one:
-
OK—Saves the changes.
-
Cancel—Cancels the modifications.
Table 1: DHCP
Server Configuration Details
|
Option
|
Function
|
Your Action
|
|
Maximum Lease Time
|
Specifies the maximum length of time in seconds for which
a client can request and hold a lease on a DHCP server.
|
Select the maximum lease time.
|
|
Default Lease Time
|
Specifies the length of time in seconds that a client
holds the lease for an IP address assigned by a DHCP server. This
setting is used if a lease time is not requested by the client.
|
Select the default lease time.
|
|
Domain Name
|
Specifies the name of the domain in which clients search
for a DHCP server host. This is the default domain name that is appended
to hostnames that are not fully qualified.
|
Enter the domain name.
|
|
Boot File
|
Specifies the boot file advertised to DHCP clients. After
the client receives an IP address and the boot file location from
the DHCP server, the client uses the boot image stored in the boot
file to complete DHCP setup.
|
Enter the location of the boot file on the boot server.
The filename can include a path name.
|
|
Boot Server
|
Specifies the name of the boot server advertised to DHCP
clients. The client uses a boot file located on the boot server to
complete DHCP setup.
|
Enter the address of a boot server. You must specify
an IPv4 address, not a hostname.
|
|
Server Identifier
|
Specifies the server identifier. This is an optional
setting that can be used to identify a DHCP server in a DHCP message.
|
Enter the IPv4 address of the server. This address must
be accessible by all clients served within a specified range of addresses
(based on an address pool or static binding).
|
| Dhcp
> Pool |
|
Name
|
Specifies the logical subnet address or netmask.
|
Enter the IP address pool range.
|
|
Low
|
Specifies lowest IP address in the pool that is available
for dynamic address assignment.
|
Enter the IP address.
|
|
High
|
Specifies highest IP address in the pool that is available
for dynamic address assignment.
|
Enter the IP address.
|
| Dhcp
> Domain Search |
|
Name
|
Specifies the domain search suffixes to be used by the
clients.
|
Enter the list of domain names to search. The list can
contain up to 6 domain names, with a total of up to 256 characters.
|
| Dhcp
> Name Server |
|
Name
|
Defines a Domain Name System (DNS) name server.
|
Enter the address of the name server. To configure multiple
name servers, include multiple address options.
|
| Dhcp
> Option |
|
Name
|
Specifies the ID number that indexes the option and must
be unique across a DHCP server.
|
Select the ID number.
|
|
Flag
|
Specifies the option type.
|
Select the option type.
|
| Dhcp
> Static Binding |
|
Name
|
Specifies the MAC address of the client. This is a hardware
address that uniquely identifies a client on the network.
|
Enter the MAC address of the client.
|
| Dhcp
> Static Binding > Fixed Address |
|
Name
|
Specifies the fixed IP address assigned to the client.
Typically a client has one address assigned, but you can assign more.
|
Enter the fixed IP address.
|
