Configuring The Dhcp Relay Agent; Recommended Configuration Procedure; Enabling Dhcp And Configuring Advanced Parameters For The Dhcp Relay Agent - HP 830 Series Configuration Manual

Configuring the DHCP relay agent

Recommended configuration procedure

Task
Enabling DHCP and configuring
advanced parameters for the DHCP
relay agent
Creating a DHCP server group
Enabling the DHCP relay agent on an
interface
Configuring and displaying clients'
IP-to-MAC bindings
Enabling DHCP and configuring advanced parameters for the
DHCP relay agent
1. Select Network > DHCP from the navigation tree, and click DHCP Relay.
Remarks
Required.
Enable DHCP globally and configure advanced DHCP parameters.
By default, global DHCP is disabled.
Required.
To improve reliability, you can specify several DHCP servers as a
group on the DHCP relay agent and correlate a relay agent interface
with the server group. When the interface receives requesting
messages from clients, the relay agent forwards them to all the DHCP
servers of the group.
Required.
Enable the DHCP relay agent on an interface, and correlate the
interface with a DHCP server group.
With DHCP enabled, interfaces work in the DHCP server mode by
default.
IMPORTANT:
•
An interface cannot serve as both the DHCP server and the DHCP
relay agent. The latest configuration takes effect.
•
If the DHCP relay agent is enabled on an Ethernet subinterface, a
packet received from a client on this interface must contain a VLAN
tag and the VLAN tag must be the same as the VLAN ID of the
subinterface. Otherwise, the packet is discarded.
•
The DHCP relay agent works on interfaces with IP addresses
manually configured only.
•
If an Ethernet subinterface serves as a DHCP relay agent, it conveys
IP addresses only to subinterfaces of DHCP clients. In this case, a
PC cannot obtain an IP address as a DHCP client.
Optional.
Create a static IP-to-MAC binding, and view static and dynamic
bindings.
The DHCP relay agent can dynamically record clients' IP-to-MAC
bindings after clients get IP addresses. It also supports static bindings,
that is, you can manually configure IP-to-MAC bindings on the DHCP
relay agent, so that users can access external network using fixed IP
addresses.
By default, no static binding is created.
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