Dhcp Overview; Dhcp Address Allocation; Allocation Mechanisms - HP FlexNetwork NJ5000 User Manual

DHCP overview

The Dynamic Host Configuration Protocol (DHCP) provides a framework to assign configuration
information to network devices.
DHCP uses the client-server model.
the DHCP clients and the DHCP server reside on the same subnet.
You can enable the DHCP client on an interface. For more information about the DHCP client
configuration, see
Figure 238 A typical DHCP application

DHCP address allocation

Allocation mechanisms

DHCP supports the following mechanisms for IP address allocation:
•
Static allocation—The network administrator assigns an IP address to a client (for example, a
WWW server), and DHCP conveys the assigned address to the client.
•
Automatic allocation—DHCP assigns a permanent IP address to a client.
•
Dynamic allocation—DHCP assigns an IP address to a client for a limited period of time,
which is called a lease. Most DHCP clients obtain their addresses in this way.
Figure 238
"Configuring VLAN interfaces".
shows a typical DHCP application scenario where
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