Dhcp Overview; Dhcp Address Allocation; Allocation Mechanisms - HP 1920 Gigabit Ethernet Switch Series 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.
A DHCP client can obtain an IP address and other configuration parameters from a DHCP server on
another subnet through a DHCP relay agent. For more information about the DHCP relay agent, see
"Configuring DHCP relay
about the DHCP client configuration, see "Configuring VLAN interface."
Figure 266 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.
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• 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 266 shows a typical DHCP application.
agent." You can enable the DHCP client on an interface. For more information
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