Enabling Dhcp; Enabling The Dhcp Relay Agent On An Interface; Specifying Dhcp Servers On A Relay Agent - HP 6125XLG Configuration Manual

Tasks at a glance
(Optional.)
(Optional.)

Enabling DHCP

You must enable DHCP to validate other DHCP relay agent settings.
To enable DHCP:
Step
1. Enter system view.
2. Enable DHCP.

Enabling the DHCP relay agent on an interface

With the DHCP relay agent enabled, an interface forwards incoming DHCP requests to a DHCP server.
An IP address pool that contains the IP address of the DHCP relay agent interface must be configured on
the DHCP server. Otherwise, the DHCP clients connected to the relay agent cannot obtain correct IP
addresses.
To enable the DHCP relay agent on an interface:
Step
1. Enter system view.
2. Enter interface view.
3. Enable the DHCP relay agent.

Specifying DHCP servers on a relay agent

To improve availability, you can specify several DHCP servers on the DHCP relay agent. When the
interface receives request messages from clients, the relay agent forwards them to all DHCP servers.
Follow these guidelines when you specify a DHCP server address on a relay agent:
The IP address of any specified DHCP server must not reside on the same subnet as the IP address
•
of the relay agent interface. Otherwise, the clients might fail to obtain IP addresses.
You can specify a maximum of eight DHCP servers.
•
Configuring the DHCP relay agent to release an IP address
Configuring Option 82
Command
system-view
dhcp enable
Command
system-view
interface interface-type
interface-number
dhcp select relay
52
Remarks
N/A
By default, DHCP is disabled.
Remarks
N/A
N/A
By default, when DHCP is enabled,
an interface operates in the DHCP
server mode.