Dhcp Client Configuration; Introduction To Dhcp Client; Enabling The Dhcp Client On An Interface - H3C S5120-SI Series Configuration Manual

DHCP client configuration

When multiple VLAN interfaces with the same MAC address use DHCP for IP address acquisition via a relay
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agent, the DHCP server cannot be a Windows 2000 Server or Windows 2003 Server.

Introduction to DHCP client

With the DHCP client enabled on an interface, the interface will use DHCP to obtain configuration
parameters such as an IP address from the DHCP server.

Enabling the DHCP client on an interface

To enable the DHCP client on an interface:
To do...
1. Enter system view
2. Enter interface view
3. Enable the DHCP
client on the interface
An interface can be configured to acquire an IP address in multiple ways, but these ways are mutually exclusive.
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The latest configuration overwrites the previous one.
After the DHCP client is enabled on an interface, no secondary IP address can be configured for the interface.
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If the IP address assigned by the DHCP server shares a network segment with the IP addresses of other interfaces
on the device, the DHCP client enabled interface will not request any IP address of the DHCP server, unless the
conflicted IP address is manually deleted and one of the following is done:
Bring the interface up again by executing the shutdown command followed by the undo shutdown
•
command
Enable DHCP client on the interface by executing the undo ip address dhcp-alloc command followed by
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the ip address dhcp-alloc command.
Use the command...
system-view
interface interface-type interface-number
ip address dhcp-alloc [ client-identifier mac
interface-type interface-number ]
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Remarks
—
—
Required
Disabled by default.